Cook County Ordinances
Contents of Part B
Article VIII Residential
Building (Class A)
following are not documnted at this web site - refer to Cook County for
Article IX Institutional Buildings (Class B)
Article X Assembly Buildings and Structures (Class C)
Article XI Educational Buildings (Class D)
Article XII Office Buildings, Business and Professional (Class E)
Article XII Commercial Buildings (Class F)
Article XIV Industrial Buildings (Class G)
Article XV Stoage Buildings (Class H)
Article XVI High Hazard Buildings and Structure (Class 1)
Article XVII Unclassified Buildings and Structure (Class J)
Article XVIII Buildings of Mixed Occupancy (Class K)
For the complete ordinances of all types of buildings - you can
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INDEX PUBLISHING CORPORATION
A Division of Law Bulletin Publishing Company
415 North State Street - Chicago, IL. 60610
Phone (312) 644-7800
8.1 HEIGHT AND AREA LIMITATIONS
8.2 FIRE RESISTIVE CONSTRUCTION REQUIREMENTS
Single-Family dwelling (Class A1)
Multiple-Family dwelling (Class A2)
8.3 FIRE PREVENTION AND PROTECTION REQUIREMENTS
Single-Family Dwellings (Class A-1)
Multiple-Family Dwellings (Class A2)
8.4 EXIT REQUIREMENTS
Number of Exits
Travel Distance to Exits
8.4-6 Revolving Doors
8.5 LIGHT AND MINIMUM PLANNING REQUIREMENTS
of Habitable Rooms
8.5-3 Minimum Sizes
and arrangements of Habitable Rooms
8.6 PLASTIC - PERMITTED USE
8.7 HEATING, MECHANICAL VENTILATING AND
8.8 PLUMBING REQUIREMENTS
Individual Water Supply
Non-Potable Water Supply Prohibited
Individual Plumbing Stacks
8.9 ELECTRICAL REQUIREMENTS
Residential Buildings - General
and Motels and Similar Occupancies
8.9-5 Exit Signs
Residential Private Garages
8.1 HEIGHT AND AREA LIMITATIONS
All Residential Buildings shall comply
with the requirements contained in this Article and all the provisions
contained in Part C.
Unit of Measure 1A
8.1-1 Single-Family Dwellings (Class A1)
8.1-2 Multiple-Family Dwellings (Class A2)
MAXIMUM ALLOWABLE HEIGHT
by Construction Type
* One additional story or fifteen feet additional
height shall be allowed when the building is equipped throughout with
an approved automatic sprinkler
system and standard fire alarm system..
by Construction Type (in square feet)
Building Height 1A
NP Not permitted
* The maximum
floor area of a multi-story building shall be determined by multiplying
the basic floor area specified herein by the "Story-factor"
below. However, in no case shall the floor are of any individual
story in a multi-story building exceed such basic floor area.
Building in Stories
add .25 for each additional story
8.2 FIRE-RESISTIVE CONSTRUCTION
Single-Family Dwellings (Class A1)
8.2-2 MULTIPLE-FAMILY DWELLINGS
a. Attached Auto Storage
A carport open on two (2) or more
sides need not have a fire separation between the carport and the
dwelling. See requirements for private garages, Article
XVII, Section 17.2-4.
b. Exception to Enclosure of Stairs
In Multiple-Family Dwellings, stairs
contained completely within one dwelling unit need not be enclosed.
c. Protection of Openings in Enclosures
In Residential Buildings not exceeding
three (3) stories in height, openings in the enclosures of stairways
serving not more than four (4) dwelling units on any floor may be
protected with doors not less fire-resistant than solid wood doors one
and three-quarter (1-3/4) inches thick.
d. Flammable Liquid Storage
(1) The storage of flammable
liquids, other than fuel oil, shall be prohibited, except that which is
required for maintenance or equipment operation which shall not exceed
10 gallons. In buildings having more than three (3) dwelling
units, a larger amount may be stored, but it must be kept in a
flammable liquid storage room (see Section 16.2) not having a door that
opens into that portion of the building used by the public.
(2) Doors leading into rooms in which volatile flammable liquids
are stored or used shall be protected by a self-closing fire assembly
having a one hour rating labeled on each side with a sign in one inch
or larger block letters: "FIRE DOOR, KEEP CLOSED."
e. Exception to Enclosure of Heating
Heating plants and boilers in buildings
serving not more than two (2) dwelling units may omit fire-resistive
f. Interior Finish
Flame spread ratings for interior
finish shall be governed by the class of finish allowed, as indicated
Including Stair Enclosures,
Sq.-ft. and Less
than 1500 sq. ft. in.
In Floor Area
*In exitways from the upper story of Two-Family Dwellings, interior
finish shall be no more hazardous than Class 3.
g. Separation of Dwelling Unit
In Multiple-Family Dwellings, dwelling
units shall be separated from each other and fro hallways and other
occupancies by partitions and floor and ceiling assemblies having a
fire resistance rating of not less than one hour, except in row houses
only the walls and partitions separating each two (2) family sections
are required to haw a fire resistance rating of not less than one
hour. Openings shall be equipped with flush type solid wood core
doors, one and three-quarter (1-3/4) inch nominal thickness or the
equivalent. Frames shall be of solid wood, one and three-quarter
(1-3/4) inches thick, rabbeted, or of metal not less than No. 16 U.S.
h. Fire Walls
Fire walls in Class A2 (Multiple Family
Dwellings) buildings shall provide two (2) hour fire resistance for
construction types I and II, and three (3) hour fire resistance for
buildings of construction types III, IV, and V
i. Existing Buildings
The purpose of this Section is to
provide a reasonable degree of safety to persons living and sleeping in
existing apartment houses and hotels by providing for alterations to
such existing buildings as do not conform with the minimum safety
requirements of this ordinance
The provisions of this Section shall
apply exclusively to existing non-conforming Class A2 occupancies more
than two (2) stories in height.
(3) Enclosure of Vertical Openings
Elevator shafts, ducts, stairwells, and
other vertical openings shall be enclosed.
(4) Stairway Construction
Interior stairs shall be incombustible
or of wood not less than two () inch nominal thickness, with solid
treads and risers, and with walls of not less than one hour
fire-resistive construction, or of wired glass in metal frame
enclosures. Door openings in such enclosures shall be protected
by a self-closing solid core one and three-quarter (1-3/4) inch or
thicker wood door or equivalent. Enclosures shall include
landings between flights and any corridors, passageways or public rooms
necessary for continuous exit to the exterior of that building.
Enclosures shall not be required if an automatic fire extinguishing
system is provided for all portions of the building except bedrooms,
apartments, and all rooms accessory thereto.
(5) Separation of Occupancies
Occupancy separations shall be provided
as specified in Article XVIII, Section 18.2
(6) Enclosures of Central Fuel Burning Device
Rooms containing a central heating
plant shall be separated from the rest of the building by one hour
fire-resistive construction having only essential openings, each of
which is protected by a self-closing one hour Class B fire door.
Porches constructed of combustible
materials shall be permitted when attached to Residential Buildings of
Types IVA, IVB, VA and VB construction, with the following limitations:
a. Porches shall not exceed three (3) stories in height
b. Porches shall not project more than 10 feet from the building
nor exceed 150 square feet in area per dwelling unit.
c. Porches shall e located not closer than six (6) feet to an
interior lot line
d. Porches of combustible construction shall not be permitted in
the Conflagration Hazard District.
8.3 FIRE PREVENTION AND
8.3-1 Single-Family Dwellings (Class A-1)
8.3-2 Multiple-Family Dwellings
a. Obstruction of Exits
No obstruction shall be permitted in
hallways of Multiple-Family Dwellings
b. Standard Fire Alarm Systems
(1) A Class I standard fire alarm
system shall be provided in all hotels and motels more than two (2)
stories in height.
(2) In buildings used in part as
a hotel, or motel, more than two (2) stories in height, detectors shall
be provided in such portions of the building other than hotel or motel
unless separated by a fire separation wall as specified in Article
XVIII, BUILDINGS OF MIXED OCCUPANCY.
c. Standard Fire Extinguishers
Standard fire extinguishers shall not
be required in Multiple-Family dwellings not exceeding two (2) stories
in height or having a floor area not exceeding 2,500 square feet.
d. Automatic Sprinkler Systems
The installation of required automatic
sprinklers shall conform to the applicable provisions of NFPA No. 13.
(2) Plastic Light-Diffusing Ceilings
The following table establishes the
clearances which shall be provided between the sprinkler deflectors and
the upper surface of an open grid ceiling in which the openings are
one-quarter (1/4) inch or larger, and where the thickness of the
material does not exceed the least dimension of the openings, and where
the grid is at least 70 percent open.
Not more than 10 ft. x 10
10 ft. x 10 ft. to 10 ft. x 12
10 ft. x 12 ft. or
(3) Existing Buildings
An automatic sprinkler system shall be
installed in every existing Multiple-Family Dwelling more than two (2)
stores in height and of construction types II or V.
e. Smoke Detectors
(1) All Buildings of residential
occupancy having two or more residential units, shall be equipped with
approved Smoke Detectors in the manner prescribed in this section.
(2) Not less than one approved Smoke Detector shall be installed
in every Multiple Dwelling Unit as defined in Article 3.2 (Class
A-2). The detector shall be installed on the ceiling and at least
(6) inches from any wall or on a wall, located from (6) to (12) inches
from the ceiling and within (15) feet of all rooms used for sleeping
purposes, with not less than one Detector per living level.
(3) All Multiple Dwellings as defined in Article 3.2 Class A-2
having two or more Residential Units, shall contain not less than one
approved Smoke Detector at the uppermost ceiling of all interior
stairwells. All approved Smoke Detectors herein required
be installed on the ceiling of all interior stairwells. All
approved Smoke Detectors herein required shall be installed on the
ceiling, at least (6) inches from the wall or on a wall located from
(6) to (12) inches from the ceiling.
(4) All approved Smoke Detectors required in this chapter shall
be the ionization or photoelectric type, either battery powered or 110
volt A.C. and shall comply with all the requirements of the
Underwriters Laboratories Inc. Standard UL 217 (Standard for Safety --
Single and Multiple Station Smoke Detectors 1976), and Chapter 27
(14-8), General standards of Electrical Installation and Chapter 27
(14-28), Electric Equipment a nationally recognized standards testing
laboratory that indicates that the smoke detectors have been tested and
listed under the requirements of UL 217 (1976).
f. Smoke Detectors in Existing Residential
(1) All existing Multiple
Dwellings as defined in Article 3.2 Class A-2 having any residential
units, that are two or more stories in height and contain two or more
dwelling units, shall be equipped with approved Smoke Detectors in
accordance with the provisions of Article 8.3-2f(2) to and including
(2) Every owner, manager or agent of any building as described in
Article 8.3-2f(1), shall install, in every dwelling unit, not less than
one approved Smoke Detector on the ceiling, not less than (6) inches
from any wall, or on a wall, located from (6) to (12) inches from the
ceiling, and within (15) feet of all rooms used for sleeping purposes.
(3) Every owner, manager or agent of any building as described in
Article 8.3-2f(1) shall install not less than one approved Smoke
Detector on the uppermost ceiling not less than (6) inches from any
wall, or on a wall, located from (6) to (12) inches from the uppermost
ceiling of all interior stairwells.
(4) All approved Smoke Detectors required in this chapter shall
be the ionization or photoelectric type, either battery powered or 110
volt A.C. and shall comply with all the requirements of the
Underwriters Laboratories Inc., standard UL 217 (Standard for Safety
-- Single and Multiple Station Smoke Detectors (1976) and Chapter
(14-8), General Standards of Electrical Installation, and Chapter 27
(14-28), Electric Equipment for Special Uses of the Municipal Code of
Chicago. Smoke Detectors shall bear the label of a nationally
recognized standards testing laboratory that indicates that the smoke
Detectors have been tested and listed under requirements of UL 217
8.4 EXIT REQUIREMENTS
8.4-1 Occupancy Content
a. For the purposes of
required exits, the number of persons accommodated within any floor
area or the occupancy content of Residential Buildings shall be based
upon the actual maximum number of occupants, but in no case shall the
occupancy content be assumed to be less than one person per 125 square
feet of gross floor area. Exit facilities shall be provided for
the determined design occupancy content of any floor area of portions
of the floor area served by the exit facility.
8.4-2 Minimum Number of Exits
b. The floor area of any open mezzanine or balcony shall be added
to the floor area of the floor below for the purpose of determining
a. Every habitable room or
enclosed floor space of a Residential Building, other than
Single-Family and Two-Family Dwellings, shall provide not less than two
(2) doorways or independent exits, located remote from each other, when
the room or space is occupied by 50 persons or more or when exceeding
1200 square feet in area.
b. All basements used for other than service of the building
shall have not less than two (2) independent exitways, except when
serving only a single-family dwelling unit.
c. Every floor of Residential Buildings, other than Single-Family
and Two-Family dwelling, shall provide not less than two (2)
independent exits, except that in the following cases there may be
access to only one exit enclosed by construction affording not less
than one hour fire resistance. One exit shall be permitted in
Residential Buildings other than hotels, lodging houses, and
other Residential Buildings accommodating transients, provided:
(1) No floor area is larger than
3200 square feet;
(2) Such area is separated from other portions of the building by
fire walls or by unpierced partitions of incombustible construction
providing fire resistance of not less than one hour;
(3) The height of such building does not exceed two (2) stories;
(4) The maximum distance of travel to reach an exit from the
entrance door of any living unit does not exceed 20 feet;
(5) The doorways between apartments and exitways are equipped
with Class C fire doors;
(6) The interior construction of the building is not less than
one hour fire resistance;
(7) The interior finish in the stairways if of Class I material
and the interior finish, used elsewhere is of Class 1 or Class 2
(8) Stairs are of incombustible materials
8.4-3 Maximum Travel Distance
d. Earth Sheltered Dwellings
(1) Every sleeping room shall
have at least one operable window, skylight or door leading to the
exterior approved for emergency egress or rescue. The units must
be operable from the inside opening without the use of separate
tools. Bars, grills, or screens placed over emergency escape
windows, skylights, or doors leading to the exterior shall be placed
over emergency escape windows, skylights or doors leading to the
exterior shall be releasable or removable from the inside without the
use of a key, tool or excessive force.
(2) Where the sleeping room is provided with a door to a corridor
having access to two remote exits in opposite directions, then a
window, skylight, or door leading to the exterior approved for
egress or rescue for each such sleeping room is not required.
a. Exits in Residential Buildings
shall be so located that the distance from an exit to the most remote
point in the story or floor area served by it, measured along the
line of travel, shall not exceed 100 feet.
8.4-4 Capacity of Exits
b. When a floor of a Residential Building is subdivided and
contains a public corridor enclosed by walls providing fire resistance
of not less than one hour, travel distance may be measured from a door
leading from a room or space to such corridor. In no event,
however, shall the travel distance from the most remote point in a
floor exceed 150 feet.
c. The travel distance to an exit from the dead end of a corridor
shall not exceed 50 feet.
a. Unit of Exit Width
(1) The unit of exit width, used
to measure exit capacity, shall be 22 inches, 12 inches, clear width,
added to one or more units shall be counted as an additional one-half
(1/2) unit. The addition of less than 12 inches to a unit of exit
width shall not be considered as increasing its exit capacity.
(2) Units of exit width shall be calculated according to the
clear unobstructed with of the exitway, except that in doorways, jambs
and doors when open may project into the required width two (2) inches
maximum for each 22 inch exit unit, and except that in stairways
handrails may project not more than three and one-half (3-1/2) inches
into the required width at each side.
(3) For minimum allowable widths of exit stairways and doorways,
see Section 22.5 and 22.6 of Article XXII, EXIT REQUIREMENTS.
b. Occupants per Unit Exit Width
The capacity of exits shall be computed
on the following bases;
(1) Stairways, Ramps and Moving Stairs -- 30 persons per unit
(2) Doorways, Horizontal Exits, Exit Corridors and Passageways --
40 persons per unit width.
(3) Street or Ground Floor Exits -- In addition to the doorways
required to sere the exit stairways, ramps, moving stairs, and
elevators from the stories above, doorways to the street shall be
provided of sufficient width to serve the ground floor occupants; the
capacity of the latter doorways shall be computed as 100 persons per
unit exit width.
8.4-5 Stairway Class Required
c. Multiple Use of Stairways and Related
The aggregate total of units of exit
width for stairways and related exitways, shall be no less than the
requirements for the greatest single floor occupancy content of any
floor above the stairway at any point. However, in no case
shall any individual stairway or related exitway be less than the
requirements of Article XXII.
All new Residential Buildings shall be
provided with Class A or Class B stairways, except that all new
Residential Buildings or Structures with a total occupancy content of
over 1000 or Buildings more than 60 feet or 5 stories high shall be
provided with Class A Stairways. Such stairways shall comply with
the applicable requirements of Section 22.5-3 of Article XXII.
8.4-6 Revolving Doors
Where revolving doors are used, there
shall be provided, adjacent to each revolving door, swinging doors of
equivalent width, and the revolving doors shall be of an approved type
which will collapse under pressure. See Section 22.6-4 of Article
XXII for other requirements for revolving doors.
8.4-7 Minimum Doorway Width
In Single-Family Dwellings (Class A1),
all doors providing means of exit shall be not less than 24 inches wide.
8.5 LIGHT AND MINIMUM PLANNING
8.5-1 Artificial Light
In Class A buildings, artificial light
shall be provided in all rooms and spaces which may be occupied by a
person or persons, except "non-walk-in" type closets. In lieu of
floor area shall be acceptable.
8.5-2 Lighting of Habitable
Every habitable room shall be provided
with natural light by engineering design or the floor area ratio method.
8.5-3 Minimum Sizes and
Arrangements of Habitable Rooms
a. Minimum Area
Habitable rooms other than kitchens
shall be not less than seven (7) feet wide in at least 90 percent of
the area of the room and shall contain not less than 80 square feet of
gross floor area.
b. Minimum Living Room Size
At least one room in every dwelling
unit shall have a gross floor area of not less than 150 square
feet. Rooms used for combined living and dining purposes
shall have a gross floor area of not less than 180 square feet,
and not less than 220 square feet if also used for cooking purposes.
c. Minimum Kitchen Size
When kitchens serving dwelling units
are completely enclosed, the gross floor area shall be not less than 90
square feet when dining space is included, and 60 square feet where no
dining space is included, except that in dwelling units having no
bedrooms, the gross floor area of the kitchen shall be not less than 50
square feet. Kitchens not completely enclosed shall be considered
as alcoves unless separately lighted and ventilated.
(1) Habitable rooms shall have a
clear height of not less than seven (7) feet six (6) inches, provided
that rooms with sloping ceilings shall have a clear height of seven (7)
feet six (6) inches in at least three-quarter (3/4) of their
area. In computing the area of rooms for the purpose of providing
minimum room sizes, all areas having a ceiling height less than five
(5) feet shall be disregarded.
(2) Exposed beam construction shall be measured from the floor
to the underside of the ceiling. Beam bottoms on flat
ceilings shall not be lower than seven (7) feet.
(3) Drop ceilings not exceeding 20 percent of the room area, will
be allowed. They shall be not lower than seven (7) feet in any
portion of a room where a person can stand.
(4) The thickness of finish materials less than one inch thick
may be neglected in measuring room heights.
e. Relation to Grade
Habitable rooms shall be permitted in a
basement only when the floor is not more than two (2) feet below
finished grade level at all exteriors walls containing openings
required for natural light and ventilation, except that basement
recreation or family rooms, where a separate living room is provided
elsewhere in the dwelling, may have their floor level more than four
feet below finished grade level.
a. Access to Rooms
In each dwelling unit, there shall be
access from each bedroom to a bathroom without passing through another
bedroom or a kitchen. Access to every habitable room in a
dwelling unit shall be provided without having to pass through a
or bathroom. In each dwelling unit, one bedroom, and when more
than one bedroom is provided, at least two (2) bedrooms shall have
access to a bathroom without passing through another habitable
room. No bathroom shall open directly into a kitchen, living room
or dining room.
8.6 PLASTIC - PERMITTED USE
b. Access to Dwelling Units
In a Multiple-Family Dwelling there
shall be access to every dwelling unit without passing through any part
of any other dwelling unit.
Terrace and patio roof coverings on
Residential Buildings may be of plastic. Plastic shall be
permitted as a substitute for glass in shower stalls and doors, bath
enclosures, and similar uses in a Residential Building, without
regard o interior finish limitations.
8.7 HEATING, MECHANICAL
VENTILATING AND REFRIGERATION REQUIREMENTS
8.7-1 Mechanical Ventilation
The method of producing ventilation and
the quantity of air to be supplied to and exhausted from rooms peculiar
to residential Buildings, by mechanical ventilating systems, shall be
as specified in Table 8.7-1 below.
N.V. or E 1.5
N.V. or S 1.0
more than two cars)*
1.0 sq. ft. R.O. for each vehicle
cars or less)
N.V. or E 1.5
Laundry (two or more
N.V. or E 1.5
N.V. or E 1.0
N.V. or E 1.0
N.V. or E 1.5
N.V. Natural Ventilation
N.R. No Requirement
supply, in cfm per square foot area
exhaust, in cfm per square foot area
R.O. Relief Opening
cfm cubic feet per minute of air
passages for vehicles shall have openings in both end walls, each
opening having an area not less than 25 percent of the cross-sectional
area of the passage; or shall have openings in the side walls,
uniformly distributed and having a total area of not less than 50
percent of the side wall. If a storage garage cannot be equipped
with effective relief openings, it shall be equipped with a mechanical
ventilating supply and exhaust system that will function so that the
amount of carbon monoxide in the air in the garage and in the
passageways shall not exceed a concentration of one part in 10,000
8.7-2 Maximum Air Velocities
Air velocities in the various parts of
a mechanical ventilating system shall not exceed those shown in the
Guide and Data Book of the American Society of Heating, Refrigerating
and Air Conditioning Engineers.
8.7-3 Combustion Air
Combustion air for gas-fired and
oil-fired devices in Residential Buildings shall be provided in
accordance with the applicable requirements of NFPA No. 54 and No. 31,
respectively. No special provision need be made to provide
combustion air for coal-fired devices in single-family dwellings when
such devices are located in a space having operable window sash.
a. Allowable Refrigerant
No refrigeration system in a
Multiple-Family dwelling shall contain over 100 pounds of a Class 1, 2
or 3 non-flammable, non-irritant refrigerant. All other
refrigerants listed in the refrigerant classification section (35.28)
are prohibited in Multiple-Family Dwellings.
b. Evaporators - Direct Systems
Where evaporators are located in rooms
used for sleeping purposes or in ducts leading thereto, direct
refrigerating systems for air conditioning shall be limited to
100 pounds of a non-irritant, non-flammable refrigerant; provided,
however, that the total refrigerant content of the system shall not
exceed limitations listed in Table 35.30-9 of Article XXXV, in total
space to be cooled. The evaporators of such systems shall be
subject to the provisions specified in sections 35.29 and 35.30.
c. Location of Evaporators
No evaporator shall be placed in a room
having adjoining rooms, the combined cubical contents of which has less
than 4,000 cubic feet and an part of which is used for sleeping
purposes, unless such rooms are provided with a window or windows the
total openable area of which is not less than five (5) percent of the
floor area of such rooms.
d. Location of Shut-off Valves
Shut-off valves for Multiple-family
Dwelling systems shall be installed at the following locations:
(1) In each branch liquid and suction line at or near compressor.
(2) At the bottom of each riser or manifold connection of any
riser or any branch connecting manifold extending over 40 feet in
(3) At each service outlet in liquid and suction lines.
These valves shall be fitted with a
hand wheel as a means of ready operation, and shall be located outside
of the refrigerating unit and at such distance above the floors as will
provide ready accessibility. Such valves, where located in living
quarters, shall be placed in a metal box or other suitable enclosure
and shall be rigidly attached thereto or to the supports thereof.
Every such outlet box shall have an accessible door or removable cover.
e. Outlet Box Limitations
Not more than one refrigerator shall be
connected to one outlet box in Multiple-Family Dwellings. Every
such outlet box shall be located within the premises containing the
refrigerator and not within the refrigerated space. No such
outlet box shall be located in any hallway, stairway or vertical shaft.
f. Window Model Units
Class E window model air-conditioning
units in Single-Family Dwellings (Class AI) must be securely attached
to the building, but need not have their center of gravity inside the
g. Service Valve
Service valves shall be installed in
both connections to every Multiple-Family Dwelling system evaporator,
and shall be of the flooded type that can be removed from the
refrigerator as a unit in such manner as to permit the removal of the
evaporator with valve attached.
h. Protection of Evaporators
Every evaporator in a Multiple-Family
Dwelling system, unless constructed of material of sufficient strength
to prevent injury in the ordinary and customary use thereof, shall be
protected by as suitable shield to assure protection against such
injury. Every evaporator shall be firmly anchored or secured in
such a manner as to make it rigid.
Every refrigerator cabinet, box or
refrigerated space of a Multiple-Family Dwelling system containing any
evaporator, using the directed system of refrigeration, shall be firmly
and securely anchored and fixed to a wall, floor or other fixed object
in such manner as to hold such refrigerator box or casing securely in
j. Location of Units
Compressors, condensers and shell type
apparatus of Multiple-Family dwelling systems shall be located in a
machinery room provided with natural or mechanical ventilation or in an
accessible part of the basement not used for habitation, workshop or
laundry purposes; provided, however that where compressors are not
located in a machinery room they shall be protected by the use of
heavy wire netting secured to metal posts or two (2) by four (4) wood
studding and shall not be located under stairways or near dumbwaiters
elevator shafts. No refrigeration unit shall be placed in a
8.8 PLUMBING REQUIREMENTS
In Multiple-Family Dwellings (Class A2)
toilet room facilities shall be provided on every floor having sleeping
8.8-2 Separate Facilities
Bathrooms and toilet rooms serving more
than two (2) sleeping rooms in hotels, dormitories, or similar usages,
where both sexes are accommodated, shall provide separate toilet
8.8-3 Fixture Requirements
a. Every dwelling unit or
apartment (permanent or semi-permanent) shall contain at least one
water closet, one lavatory, one bathtub or shower and a kitchen
sink-laundry try or connection for an automatic washer; and every
apartment building or multiple dwelling building shall be equipped with
at least one double compartment laundry tray; a connection for an
automatic washer, for each ten (10) units
8.8-4 Downspouts when not connected to a storm sewer or a
combined storm-sanitary sewer, may either (1) spill onto a lawn which
is well graded away from the
building, or (2) be
connected to a dry-well.
8.8-5 Footing Drains
a. Footing drains shall be
connected to sump pumps and the discharge therefrom shall be made into
storm sewers, existing combined sewers, drainage ditches or engineer
and well-defined drainage swales. No footing drains or drainage
tile shall be connected directly or indirectly to the sanitary
sewer. No building permit application will be accepted nor any
permits issued for construction of any structure unless the plans and
specifications thereof provide for discharge of water from
drains and drainage tile as called for in this Ordinance.
8.8-6 A two (2 inch, grinder-type bilge pump shall be
to serve a maximum of 14 fixture units, including water closet
discharge, and shall conform to the
b. In the event that discharges are presently made from any
footing drains, drainage tile or any other drainage system in such a
manner as to reach directly or indirectly into a sanitary sewer,
such discharges are deemed non-conforming with the provisions of this
ordinance and are hereby declared illegal. Necessary
measures shall betaken promptly for the elimination of any such
discharges of storm waters into the sanitary sewers and for the
disconnection of any footing drains, drainage tile or any other tile
intended for the conveyance of storm waters.
c. Sump pumps installed to receive and discharge ground
waters or other storm waters shall discharge into storm sewers,
drainage ditches or other engineered ditches or other engineered and
well-defined drainage swales. Sump pumps installed to receive and
discharge floor drain flow or other sanitary sewage shall be connected
to the sanitary sewer. A sump pump shall be used for one function
only, either the discharge of storm waters or the discharge of sanitary
sewage. A check valve shall be provided in sump discharge.
d. Sumps other than those receiving clear water waste shall be
gas tight and vented
e. All sumps shall have their covers firmly anchored.
requirements of Section
36.11-7, except paragraphs e and f.; a two (2) inch vent shall be
installed from the sump.
8.8-7 Septic Tanks
a. Septic tanks serving
Single-Family Dwellings shall have a minimum capacity in
accordance with the provisions of Table 8.8-7A.
Bedrooms Maximum Number of Persons
Served Nominal Liquid Capacity of
2 or less
b. Where domestic garbage
units are installed or contemplated, the capacity of the septic tank
shall be at least 50 percent greater than indicated in Table 8.8-7A
c. The absorption areas for residences shall be determined
(Square Feet of Trench)
Seepage Rate in
Minutes per Inch 3 Bedrooms or
Bedrooms Each Additional Bedroom
15 or less
16 to 20
21 to 25
26 to 30
31 to 35
36 to 40
41 to 45
46 to 50
51 to 55
56 to 60
*Consult with County Department of Public Health for system to bed used
8.8-8 Water Supply Control
8.8-9 Individual Water Supply
In Two-Family Multiple-Family
Dwellings, the water supply for each family unit shall be controlled by
an arrangement of shut-off valves, which will permit the individual
fixtures, or each group of fixtures, to be shut off without
with the water supply to any other family unit or portion of the
building. A group of fixtures means two (2) or more fixtures
adjacent to, or near, each other.
In Residential Buildings a water supply
pressure tank shall have a minimum storage capacity of 42 gallons per
8.8-10 Non-Potable Water Supply
A non-potable water supply is expressly
prohibited in Residential Buildings.
8.8-11 Individual Plumbing
In all attached single family dwelling
units, where each individual family occupies the total height of each
unit, separate plumbing stacks shall be provided for each unit,
regardless of the location of the plumbing fixtures in each unit.
8.9 ELECTRICAL REQUIREMENTS
8.9-1 Applies to all single and multiple-family residential
(1) In dwelling occupancies the
voltage between conductors supplying lamp holders of the screw shell
type, receptacles or appliances, shall not exceed 150 volts except that
between conductors supplying only permanently connected appliances or
portable appliances of more than 1,380 watts may exceed 150
volts. Any portable appliance which operates at a voltage in
excess of 150 and not more than 240 shall be served from a receptacle
wired to carry the load of the appliance and properly grounded.
(2) Lighting equipment having an open-circuit voltage of more
than 1,000 volts shall not be installed in Residential Buildings.
(3) Lighting equipment having an open-circuit voltage of more
than 300 volts shall not be installed in Residential Buildings unless
such equipment is so designed that there shall be no exposed live parts
when lamps are being inserted, are in place or are being removed.
(1) Disconnection of Portable Appliances
For electric ranges and clothes dryers,
a separable connector or an attachment plug and receptacle may serve as
the disconnecting means.
(2) Unit Switches as Appliance Disconnecting
Switches which are a part of an
appliance shall not be considered as taking the disconnection, as
(a) Single-Family Dwellings
In Single-Family dwellings, the service
disconnecting means may be used
(b) Two-Family Dwellings
In Two-Family Dwellings, the
disconnecting means may be outside of the apartment in which the
appliance is installed. This will permit an individual switch for
the apartment to be used.
(c) Multiple-Family dwellings
In Multiple-Family dwellings, the
disconnecting means shall be within the apartment or on the same floor
as the apartment in which the appliance is installed, and may control
lamps and other appliances.
(1) For household electric
ranges, the branch circuit load may be computed in accordance with
(2) The feeder load for household electric ranges and other
cooking appliances, individually rated more than one and
three-quarters (1-3/4) kw, may be calculated in accordance with Table
8.9-4. Where a number of ranges are supplied by a three
(3)-phase, four (4)-wire feeder, the current shall be computed on the
basis of the demand of twice the maximum number of ranges connected
between any two (2)-phase wires. In order to provide for possible
future installation of ranges of higher ratings, it is recommended that
where ranges of less than eight and three-quarters (8-3/4) kw, ratings
are to be installed, the feeder capacity be not less than the maximum
demand value specified in Column A of Table 8.9-4.
(3) See Note of Table 8.9-4. Where the maximum demand of a
range of eight and three-quarters (8-3/4) kw or more rating is computed
according to Column A of the Table, the neutral conductor of a three
(3)-wire branch circuit supplying a household electric range may be
smaller than the ungrounded conductors and shall not be smaller
No. 10. Cable assemblies with the neutral conductor smaller than
the ungrounded conductor shall be so marked.
(4) For a feeder supplying household electric ranges, the maximum
unbalanced load shall be considered to be 70 percent of the load on the
ungrounded conductors as determined in accordance with Column A of
(5) The capacity of range receptacles may be based on single
range loads as computed from Table 8.9-4.
d. Receptacle Requirements
(1) In every kitchen, utility
room dining room, breakfast room, living room, parlor, library,
den, sun room, recreation room and bedroom, one receptacle outlet shall
be provided for every 12 linear feet or major fraction thereof of the
total (gross) distance around the room as measured horizontally along
the wall at the floor line. The receptacle outlets shall, insofar
as practicable, be spaced equal distances apart. There shall be
at least one receptacle between doors three (3) feet or more
At least one receptacle outlet shall be installed for the connection of
(2) All receptacles installed in residential type occupancies or
structures auxiliary to residential occupancies (e.g. garages, patios,
terraces) shall be of the groundable type.
(3) Receptacle outlets in the floor shall not be counted as part
of the required number of receptacle, outlets unless located
close to the wall.
(4) For the small appliance load in kitchen, laundry, utility
room, pantry, dining room and breakfast room of dwelling occupancies,
one or more branch circuits shall be provided for all receptacle
outlets (other than outlets for clocks) in these rooms and such
circuits shall no other outlets. The conductors of such circuits
shall be not smaller than No. 12, and the ratings of the circuit
over-current protective device shall be 20 amperes.
8.9-2 Single-Family Dwellings
e. Permissible Loads
50-ampere branch circuits having two
(2) or more outlets may supply only fixed cooking appliances, or fixed
range and water heater.
Includes single-family apartments as
part of a multiple-family dwelling when such apartments are provided
with cooking facilities
a. Branch Circuits
(1) Each single-family dwelling
and each apartment shall be provided with at least one general lighting
branch circuit for each 500 square feet of area of the normal living
quarters. A branch lighting circuit shall not be used to supply
more than one apartment. A fixed lighting fixture of approved
type shall be installed over each laundry tub, sink and lavatory and
such light shall be additional to the general lights in laundries and
kitchens. The circuit capacity in a single-family dwelling shall
be estimated at three (3) watts per square foot for the usual living
part of the dwelling. This area does not include unfinished
attics or unfinished basements. Any space in basement or attic
finished for living use is calculated at three (3) watts per square
foot. Other lighting, as in unfinished basements or attics,
garages, outside lights on porches or for any other purpose than as
actual living quarters, shall be on a basis of 0 watts each. It
may be possible that additional circuits may be required to supply such
(2) Ranges for ordinary domestic use shall be supplied by
circuits of not less than eight (8) kilowatts capacity each and
installed by an approved wiring method.
(3) New circuits, or extensions to portions of the building not
previously wired or additions to the building shall conform to
paragraph (1)) above
b. Receptacle Requirements
(1) In living rooms, sun parlors,
living porches, bedrooms and parlors, duplex receptacle outlets shall
be provided for each twelve lineal feet or fraction thereof, of the
total distance around each room as measured horizontally along the wall
at the floor line including all openings. These receptacles shall
be on the general lighting circuits. A receptacle outlet shall be
provided for any space of three (3) feet or more between doors or
openings. The appliance circuit shall supply all the receptacle
outlets in the kitchen, dining room and breakfast room, together
with the required outlets in the laundry and pantry in each
occupancy. All receptacles installed in residential type
occupancies or structures auxiliary to residential occupancies (i.e.
garages, patios, terraces, etc.) shall be of the groundable type.
At least one receptacle shall be installed in each bathroom or powder
room and it shall be of the groundable type. A general lighting
circuit or any circuit other than the appliance circuit shall supply
all of the receptacle outlets in the living room, parlor, library, den,
sun room, recreation room and bedrooms of each occupancy.
(2) The installation of a combined switch and convenience outlet
where the switch is used to control a ceiling fixture or side wall
bracket, is not allowed to satisfy the receptacle device will not be
interfered with. Outlets for floor or table lamps, radios, etc.,
shall be close to the floor. There is no objection to the use of
combined switch and convenience outlet where the switch controls the
convenience outlet such as in flat iron outlets, must of necessity be
at a higher level, nor is there any objection for the control of
receptacles by room switches.
c. Feeder Computation
(1) To estimate the size of
service feeders and sub-feeders for apartment buildings, a
combination of the following three factors shall be considered as the
total watt load:
(a) The apartment lighting the
total floor area including partitions shall be estimated on a basis of
three watts per square foot. Should a special layout or design of
the apartment lighting load in watts exceed that estimated on the basis
of the three watts per square foot, then the special lighting or
appliance load shall be estimated on the actual watt load to be served.
(b) Feeder capacity for the appliance load shall be estimated as
1,500 watts per house or apartment as provided in Section
to which shall be added the watt load of any fixed appliance over 660
watts rating intended to be connected and used in the apartment.
(c) The public hall and basement, storerooms, outside garage, or
accessible attic; the watt load shall be estimated at 60 watts per
outlet, except that for outlets to be used for fixed appliances, the
watt load of such appliance shall be added.
(2) The estimated maximum demand
shall be the sum of the above three factors multiplied by a demand
factor in the following table corresponding to the areas of the
(3) The feeder demand factor shall be as follows:
Lighting load to
Up to 20,000
*The given demand factors shall not apply to the computed load of
sub-feeders to areas where the entire lighting system is likely to be
used at one time. The above demand factors are based on minimum
load conditions and 100 percent power factor, and in specific instances
may not provide sufficient capacity for the installation
contemplated. Each installation should be considered as to the
load likely to be imposed and the capacity increased to insure safe
(4) In all occupancies covered by Section 8.9-2 those conductors
which supply all the current consumed by an individual apartment or
living unit shall be as follows:
(a) For apartments or units of
850 square feet or less a minimum of two (2) #6 RH and one #8 RH.
The switch or breaker cabinet fed by these conductors shall have
a 100 ampere minimum rating.
(b) For apartments or units of 851 square feet or more a minimum
of two (2) #2 RH and one #4 RH. The switch or breaker cabinet fed
by these conductors shall have a 100 ampere minimum rating.
(c) If the branch circuit distribution cabinet is located in the
apartment or unit, the meter disconnect shall be the full rating of the
required conductors and shall comply with the provisions of Section 27
(14-16-535) of the Chicago Electrical Code
d Service Requirements
(1) Service entrance conductors,
including underground services, shall have a current carrying capacity
sufficient to carry the load as determined by Section 27
(14-16-300) of the Chicago Electrical Code and in accordance with
1 and 2 of Chapter 27 (14-68) of the Chicago Electrical Code.
They shall not be smaller than No. 8. The neutral of the service
entrance conductors shall have a current capacity in
conformity with paragraph g of Section 27 (14-16-300) of the
Chicago Electrical Code and shall be the same size as the ungrounded
conductor when the ungrounded conductors are No. 8.
(2) Where more than one circuit is required for lighting a
service not smaller than two (2) No. 6's and one No. 8 with a 60
ampere service switch shall be provided.
(3) Residential occupancies of over 850 sq.-ft shall have a
minimum of two No. 2's and one No. 4 service conductors. The
service switch or breaker cabinet shall have a minimum rating of 100
(4) Residential occupancies of 850 square feet or less shall have
a minimum of two (2) #6's and one No. 8 service conductors. The
service switch cabinet shall have a minimum rating of 60 amperes; the
service breaker cabinet shall have a minimum rating of 50 amperes.
(5) Meters, high-impedance shunt circuits (such as potential
of meters and control circuits of time switches), surge protective
capacitors, lightning arresters and circuits for emergency lighting and
for fire alarms as provided in Section 27 (14-16-680), of the Chicago
Electrical Code, may be connected on the supply side of the
disconnecting means. The wiring method of such control circuits
shall be one specified for service entrance conductors.
(6) The service switch and over-current device shall be located
general on the rear wall or closely adjacent thereto. The
disconnecting means shall be manually operable. It may consist of
not more than six (6) switches or circuit breakers in a common
enclosure or in a group of separate enclosures located in a readily
accessible point nearest to the entrance of the conductors and
inside the building wall except as herein provided. The
disconnecting means shall be of a type approved for service equipment
and for prevailing conditions. Switches of 30, 60 and 100 amperes
capacities shall be of the dead front type. The
disconnecting means shall be located in the basement or first floor
utility room or in an adjoining garage if a part of the main building
structure. Services switches shall not be located over laundry
tubs. Exception to the foregoing may be made for unusual
conditions by special permission of the Building Commissioner.
For overhead services, the disconnecting means shall be so located that
the length of the conductors shall be as short as
To conform to this requirement, where possible the disconnecting means
shall be located at that part of the building nearest to the source
from which the service is taken. In existing residential
occupancies, exception may be under the following conditions:
where there is no basement or other available place accessible to all
the occupants, the disconnecting means may be located in an
enclosed porch or other available weatherproof enclosure. Where
outdoor meters are installed the service switch and over-current device
may be located in each apartment.
In a multiple-occupancy building, each occupant shall have access to
his disconnecting means. In a multi-occupancy building supplied
by a service in conformity with paragraph b. of Section 27 (14-16-340)
of the Chicago Electrical Code, and having a common readily
accessible space available, the disconnecting means may consist of not
more than six (6) switches or circuit breakers which shall conform to
the requirements of paragraph a. of this section. The length of
the service shall be as short as practicable.
(7) A service switch shall have a rating not less than the load
to be supplied determined in accordance with Section 27(14-16-300) of
the Chicago Electrical Code and shall have in all cases, except
as noted below, a rating of not less than 60 amperes and the circuit
breaker not less than 50 amperes. Except by special permission,
30 ampere switches shall not be used for two (2) wire services
supplying more than one 15 ampere branch circuit.
(8) In general, the point of attachment of a service drop to a
building shall be not less than 10 feet above the ground and shall be
at at a height to permit a minimum clearance for service drop
conductors of 10 feet above sidewalks and 18 feet above driveways,
alleys, and public roads. The attachment shall not be more than
30 feet above the ground. Where the minimum 10 foot height cannot
be provided at the building wall, provision shall be made to attain
that or a greater height by means of a riser or by an equally effective
mans. Where it is necessary to erect a riser on a building to
obtain clearance for the service outlet or for the wires between the
pole and the building, the riser shall comply with the specifications
of the electricity supply company.
(9) Service conductors extending along the exterior of or
entering buildings shall be rubber covered or thermoplastic covered
in: (1) rigid metal conduit, (2) in approved service entrance cable in
existing residential occupancies only and installed to supply
electric ranges, electric water heaters or electric clothes driers, or
(3) in busways. See Chapter 27(14-20-920) of the Chicago
(10) Where the current supply is separately metered as in
apartment house installations, a switch and cutout shall be installed
to control each such separately metered installation. Where
meters are installed outside, they shall be grouped and shall not
exceed six (6) in number except for if more than six (6) meters are
required in a group a service switch shall be installed to control the
entire group. Service conductors between the outside meter and to
its respective service switch, unless brought into the building
separately, may be brought in a single raceway if the number of
conductors does not exceed nine (9) excluding a common neutral for the
group. At a point where this raceway enters the building a
junction box shall be installed from which the several raceways may
extend to the service switches. The total length of the service
conductors within the building shall not exceed five (5) feet in
addition to the limitation of six (6) feet for the service entrance
e. System and Equipment Grounding
See Sections 27(14-16-1500), 27
(14-16-1510) and 27(14-16-1530) of the Chicago Electrical Code.
(1) For system or common
grounding conductor resisting material.
The conductor may be solid or stranded,
insulated or bare. Except in the case of bus bars the grounding
conductor shall be without joint or splice throughout its length.
If the grounding conductor is not of copper, its electrical resistance
per lineal foot shall not exceed and its tensile strength shall not be
less than that of the allowable copper conductor for such a purpose.
(2) For conductor enclosures
The grounding conductor for equipment
and for conduit and other metal raceways or enclosures for conductors,
may be a conductor of copper or other corrosion resistant material,
stranded or solid, insulated or bare, a bus bar or rigid conduit, steel
pipe or electrical metallic tubing, except that under conditions
favorable to corrosion, a grounding conductor of copper or other
corrosion resistant material shall be used.
All grounding conductors shall be
installed in rigid metal conduit, electrical metallic tubing, flexible
conduit or armored conductor which shall connect directly to the
service disconnecting means enclosure and extend continuously to the
grounding electrode to which it shall be securely connected by means of
an approved clamp. Flexible conduit and armored conductor may be
used in existing buildings for grounding purposes only where this
ground is concealed or a major portion of the ground is concealed.
(4) Replacement ground
Flexible conduit and armored conductor
when used for grounding purposes may be exposed only where approved
service entrance cable is used for the service or when replacing a
ground conductor where no other wiring is being installed.
(5) Identifying tag
An approved non-ferrous metal tag shall
be attached to the ground clamp, giving warning against its removal.
(6) Conduit used as ground
Where rigid metallic conduit or steel
pipe is used as a grounding conductor, the installation shall comply
with the requirements of Section 27 (14-20-1140) of the Chicago
Electrical Code; where electrical metallic tubing is used, the
installation shall comply with the requirements of Section
27(14-20-1370) of the Chicago Electrical Code.
(7) Attachment to water pipe ground
The point of attachment of the
grounding conductor to the cold water pipe shall, in all cases, be as
close as practicable to the source of water supply to the building and
on the street side of the water meter if possible, otherwise a bonding
jumper shall be installed around the water meter.
(8) Soldered terminals and neutral wire ground
No soldered terminal connections may be
employed either in service run or grounding conductor. Where the
current supply is alternating current, the covered neutral of the
service entrance cable may be used to ground outside meter equipment
and the frame of the electric range.
8.9-3 Hotels and Motels
and Similar Occupancies
f. Additional Requirements
(1) All rooms to be wired.
In single family dwellings and
apartments all the rooms shall be wired including accessible
attics, stair halls, closets, basement storerooms, utility rooms,
pantries, garages and similar locations.
(2) Closet lights
The requirement for lights in closets
may be waived if the closet has an area of less than five square feet
and if there is a closely adjacent fixed light so placed to illuminate
the contents of the closet. Wardrobe closets are not exempt from
this provision. Closet lights shall be permanently installed
lighting fixtures. Drop cords are not acceptable.
(3) Low voltage wiring
Low voltage wiring for control or
signaling or communication systems which is enclosed in building
partitions, walls or in any way made inaccessible by building
construction shall be encased in a raceway whenever they are so
enclosed. Such raceway will protect the conductors during
construction and provide ready means for replacement of conductors
the building is completed. These raceways need not terminate in a
box or fitting as long as normal precautions are taken to protect the
conductors against injury.
Applies to individual dwelling units
without cooking facilities in multiple-dwelling unit buildings.
a. Branch Circuits
(1) Number of Circuits
The number of circuits shall be not
less than that determined from the total computed load (see paragraphs
(2) through (5) below) and the capacity of the circuits to be used, but
in every case, the number shall be sufficient for the actual load to be
served. When the load is computed on a watts-per-square foot
basis, the total load insofar as practical shall be evenly proportioned
among the branch circuits according to their capacity.
(2) General Lighting
In determining the lighting load on a
watts-per-square-foot basis, a unit load of two (2) watts per square
foot of the entire area shall be used. The floor area shall be
computed from the outside dimensions of the building, apartment, or
area involved and the number of floors.
(3) Halls, Corridors, Closets and Storage
A unit load of one-half (1/2) watt per
square foot shall be used for halls, corridors, and closets and
one-quarter (1/4) watt per square foot for storage space.
(4) Other Loads
For lighting other than general
illumination, and for appliances other than motors, a load of not less
than the following shall be included for each outlet:
(a) Outlets supplying specific appliances and other loads --
Ampere rating of appliance or load. For motors, see Section
27(14-24-1200) and 27(14-24-1220) of the Chicago Electrical Code.
(b) Outlets supplying heavy duty lampholders -- 5 Amperes
(c) Other outlets -- 1.5 Amperes*
*This is applicable to outlets that are
not intended for specific appliances, heavy duty lampholders or fixed
(5) Receptacles on Lighting Circuit
All receptacle outlets of 15 ampere or
less rating in guest rooms of hotels and motels may be considered as
outlets for general illumination and no additional load need be
for such outlets. The receptacle outlets in paragraph (4) above
for which the allowance is not more than one and one-half (1-1/2)
amperes per outlet may be included with the general lighting load and
be subject to the feeder demand factor.
(6) New Circuits for Existing Buildings
New circuits which are added to
existing installations, or extensions to existing circuits, may be
determined in accordance with paragraph (2), (3) and (4) above, except
that portions of existing structures not previously wired, or additions
to the building structure, either of which exceeds 500 square feet in
area, shall be determined in accordance with paragraphs (2), (3) and
b. Feeder Demand Factor
(1) The feeder demand factor
shall be as follows:
Portion of Lighting Load to
Demand Factor Applies
Up to 20,000 watts
20,2001 to 100,000 watts
*The given demand factors shall not
apply to the computed load of sub-feeders to areas where the entire
lighting system is likely to be used at one time.
8.9-4 Demand Loads for
Household Cooking Units
(2) The above demand factors are
based on minimum load conditions and 100 percent power factor, and in
specific instances may not provide sufficient capacity for the
installation contemplated. Each installation should be considered
as to the load likely to be imposed and the capacity increased to
insure safe operation.
(See Note 4)
of Column A
(not over 12
3-1/2 (3-1/2 kw
3-1/2 kw 8-3/4 kw
26-30 15 kw plus 1
31-40 for each
41-50 25 kw plus 3/4
51-60 kw for
NOTE: Column A to be used in all
cases except as otherwise permitted in Note 3 below
8.9-5 Exit Signs
Note 1: Over 12 kw to 21 kw Ranges. For ranges individually
rated more than 12 kw but not more than 21 kw, five percent shall be
added to above maximum demand (Column A) for each additional kw
of rating or major fraction thereof by which the individual range
rating exceeds 12 kw.
Note 2: Over 21 kw Ranges. Ranges individually rated
more than 21 kw are not considered as household electric ranges and the
demand should be determined on the basis of rating and use.
Generally, the demand for commercial ranges should be based on the
maximum nameplate rating.
Note 3: Over one and three-quarters (1-3/4) kw to eight and
three-quarters (8-3/4) kw. In lieu of the method provided
in Column A,the load for ranges individually rated more than one and
three-quarters (1-3/4) kw but not more than eight and three-quarters
(8-3/4) kw may be considered as the sum of the nameplate ratings of all
ranges, multiplied by the demand factors specified in Columns B or C
for the given number of ranges.
Note 4: Branch Circuit Load. Branch circuit load for one
range may be computed in accordance with the above table.
All Multiple-Family dwellings, except
apartment houses with less than eight (8) living units shall have exit
signs conforming to the requirements with Section 22.14 of Article
XXII, EXIT REQUIREMENTS
8.9-6 Emergency exit Lighting
Every apartment, hotel, hotel, and
motel occupied by 20 or more persons, or more than two (2) floors in
height shall have an emergency exit lighting system in conformance with
Chapter 27(14-48-010) of the Chicago Electrical Code
8.9-7 Residential Private
Residential private garages, whether
attached or not to a residence shall comply with Section 17.10-3 of
Article XVII UNCLASSIFIED BUILDINGS AND STRUCTURES
Note: the following Articles do not pertain to residential
or apartment buildings and owners of these buildings should refer to
the complete Cook County Ordinances: