(a)
Enclosure of Machine Rooms and Machinery Spaces. The enclosure shall be
building walls, ceiling material, and fireproofing conforming to the governing
building codes. The material and height limitations outlined in this section
establish the minimum standards for machine room enclosures. These regulations
are not intended to supersede applicable local building codes establishing
higher standards.
(1)
Elevator driving
machines, motor generator sets, controllers, and auxiliary control equipment
shall be installed in a room or enclosure set aside for that purpose.
EXCEPTION to subsection
3011(A)(1):
Machines and associated equipment as installed before
June 5, 1947, in machine rooms or machinery spaces accessible only to
authorized attendants.
(2)
Enclosures shall be of substantial construction at least 6 ft (1.83m)
high, and if of openwork material shall reject a ball 2 in. (51mm) in
diameter.
(b) Equipment
in Machine Rooms of Power Elevators.
(1) Where
the elevator machine and control equipment are located at the top of the
hoistway, they may be located in a room or space containing other machinery and
equipment essential to the operation of the building, provided that they are
separated from the other machinery or equipment by a substantial metal grille
enclosure not less than 6 ft (1.83m)high with a door or gate conforming to
Section
3011(d). The
grille enclosure shall be of a design which will reject a ball 2 in. (51mm) in
diameter.
(A) Elevated machine or control
areas within an equipment room shall have a wall or enclosure, including access
means, that provides a barrier not less than 6 ft (1.83m) high above the
adjacent floor. The raised platform shall be guarded by at least a standard
guardrail with a standard toeboard.
(2) Where the elevator machine and control
equipment are not located at the top of the hoistway, a separate machine room
shall be provided and only machinery and equipment required for the operation
of the elevator shall be permitted in the elevator machine room.
(3) The enclosure for the elevator equipment
shall be arranged so that passage through the machine room or enclosure is not
necessary to gain access to other equipment or other parts of the building.
EXCEPTION: Passage to enclosed equipment installed
within the elevator machine room to provide the ventilation required by Section
3011(f)(2)(A).
(4)
Elevator machine rooms or
enclosed areas shall be kept free of all materials except those used for repair
or maintenance of the elevator. Machine rooms shall be kept reasonably
clean.
(c)
Access to Machine Rooms and Machinery Spaces.
Permanent means for safe
and convenient access shall be provided to all machine rooms, overhead sheave
spaces provided with a floor, and secondary levels. This access shall be
independent of the hoistway or car.
(1) Where passage over roofs is necessary to
reach the means of access to machine rooms or machinery spaces, the following
requirements shall be conformed to:
(A) A
stairway, conforming to applicable building codes shall be provided from the
top floor of the building to the exit door at the roof level.
(B) Where the passage is over a sloping roof
having a slope exceeding 15 degrees from the horizontal, an unobstructed,
permanent, and substantial walkway not less than 24 in. (610mm) wide, equipped
on at least one side with a standard railing, shall be provided from the
building exit door at the roof level to the means of access to the machine room
or machinery spaces.
(2)
The means of access to machine rooms or to machinery spaces shall conform to
the following:
(A) Where the floor of the
machine room or of the machinery space is more than 8 in. (203mm) above or
below the floor or roof from which the means of access leads, stairs, or
ladders shall be provided between such levels.
(B) Where the difference in levels is not
more than 3 ft (914mm), a vertical ladder with handgrips may be
provided.
(C) Where the difference
in levels is more than 3 ft (914mm), stairs having a maximum angle of 60
degrees from the horizontal and equipped with a standard stair railing shall be
provided.
EXCEPTIONS to subsection
3011(c)(2)(C):
1. Alternating tread stairs as permitted by
Section
3234 of the General Industry Safety
Orders.
2. Vertical ladders may be
used where the differences in level are more than 3 ft (914mm)for access from
interior building floors or from machine rooms to machinery spaces containing
overhead sheaves, secondary and deflecting sheaves, or
governors.
(D) A platform
shall be provided at the top of stairs or ladders conforming to and where
required by Article 4 of the General Industry Safety Orders.
(E) Standard handrails, guardrails,
toeboards, and stair railings shall conform to the regulations of Article 2 of
the General Industry Safety Orders.
(d) Access Doors.
(1)
Elevator machine rooms or
enclosures shall be secured against unauthorized access. Access doors
shall be provided for all elevator machine rooms or enclosures and shall
conform to the following:
(A) Have a minimum
width of 30 in. (762mm) and a minimum height of 6 ft (1.83m) for machine rooms
and a minimum height of 30 in. (762mm) for other spaces specified in Sections
3011(e)(2) and
3011(e)(3).
(B) Be self-closing.
(C) Be provided with a spring-type lock to
permit the door to be opened from the inside without a key.
EXCEPTION to subsection
3011(d)(1)(C):
Doors are not required at openings in machine room
floors for access to deflecting and secondary sheave spaces provided the floor
access opening is provided on all four sides with a standard railing, one side
of which is arranged to slide or swing to provide access to the ladder or
stairs leading to the secondary sheave space. Trap doors, where provided, shall
have standard railings or guard wings on all open sides and shall be arranged
to be secured in the open position. See Section
3011(e)(3).
(D) Keys to access the elevator machine rooms
and machinery space enclosures shall be kept in the elevator pit. The keys
shall be properly identified, located near the pit stop switch and shall be
accessible from the pit access door. In buildings with banks of multiple
elevators, the keys shall be kept in the elevator pit of the elevator with the
lowest state identification number.
(e) Headroom in Machine Rooms and Overhead
Machinery Spaces.
(1) Elevator machine rooms
and machinery spaces not located over the hoistway shall have a headroom of not
less than 7 ft (2.13m).
(2) Where a
floor is provided at the top of the hoistway, elevator machine rooms and
overhead machinery spaces above such floor shall have a clear headroom of not
less than the following:
(A) Machine, control,
and motor generator rooms, 7 ft (2.13m).
(B) Spaces containing only overhead,
secondary or deflecting sheaves, 42 in. (1.06m).
(C) Spaces containing only overhead,
secondary or deflecting sheaves, and governors, 54 in. (1.37m).
(D) Under Sections
3011(e)(2)(B) and
3011(e)(2)(C), the
machine or supporting beams may encroach on the required headroom provided
there is a clearance of not less than 3 ft (914mm) below the underside of
machine beams or not less than 3 ft (914mm) above the top of overhead sheave
supporting beams with at least a 2-ft (609mm)-wide clear
passageway.
(3) Separate
access to each secondary or deflecting sheave space shall be provided unless a
clear passageway not less than 4 ft (1.22m) high and 2 ft (610mm) wide is
provided from one space to another in multiple hoistway installations. This
height may be reduced to 3 ft (914mm) between the machine beams and the sheave
space floor.
(f) Lighting
and Ventilation of Machine Rooms and Machinery Spaces.
(1) Permanent lighting and convenience
outlets shall be provided and installed to comply with the requirements of CCR,
Title 24,
Part 3, Article 620.
(2)
Machine rooms shall be provided with uniform natural or mechanical ventilation
of sufficient capacity to maintain a temperature of not more than 104° F
(40° C) regardless of outside temperature.
(A) Where mechanical ventilation equipment is
provided, it shall be located outside the elevator machine room, where
possible. When located within the machine room, it shall be isolated from the
elevator equipment by an enclosure conforming to Section
3011(a).
(g) Work Space Required in Machine Rooms and
Machinery Spaces.
(1) There shall be a clear
work space and passageway at least 18 in. (457mm) wide on at least three sides
of every elevator machine.
EXCEPTION to subsection
3011(g)(1):
A second side of the machine may be partially or
totally blocked by an enclosure or equipment, thereby reducing the required
work space and passageway, provided the following are conformed to:
1. Safe access to and a minimum of 18 in.
(457mm) work space is provided for machine parts that require inspection,
service, and adjustment when the machine is in operation; and
2. Parts that normally do not require
service, repair, or inspection when the machine is in operation shall be
provided with access, or can be made accessible when protective guards, etc.,
are removed, and adequate work space to perform the work is provided.
NOTE: The intent of this regulation is to locate the
machine, with respect to the adjacent enclosure and other machine room
equipment, so that safe and convenient access is provided for inspection,
service, and adjustment. Safe working conditions for future major repairs
should be considered when locating the machine and adjacent
equipment.
(2)
Governors, motor generator sets, and other devices, shall have a clear work
space and passageway at least 18 in. (457mm) wide and 78 in. (1.98 m) high on
at least one side, and no passageway shall exist between various devices, or
devices and the walls, less than 18 inches wide.
The commutator end of motor generator sets shall be
exposed to allow safe access for servicing and adjusting.
(3) The clear work space in front of and in
back of control panels and the passage space at the ends of control panels
shall conform to CCR, Title 24,
Part 3, Article 620.
(4) The clear work space in front of, and the
accessibility of the power disconnect switches, shall conform to the
requirements of CCR, Title 24,
Part 3, Article 620.
(h) Identification Required. Where there is
more than one elevator, each elevator shall be assigned a different number.
This number shall be used to clearly identify all major components of that
piece of equipment in the machine room and machinery spaces.
(Title 24, Part 7, Section
7-3011.)
Notes
Cal. Code Regs. Tit. 8, §
3011
1.
Amendment of subsections (b)(3), (b)(4), (c)(2)(D) and (c)(2)(E) filed 6-23-77;
effective thirtieth day thereafter (Register 77, No. 26).
2.
Amendment filed 6-23-87; operative 6-23-87 (Register 87, No. 27).
3.
Amendment of subsections (f)(1), (g), and (g)(3)-(4) filed 6-29-94; operative
7-29-94 (Register 94, No. 26).
4. Editorial correction of
subsections (f)(2) and (g)(2) (Register 95, No. 26).
5. New
subsection (d)(1)(D) and amendment of NOTE filed 5-8-2002; operative 6-7-2002
(Register 2002, No. 19).
Note: Authority cited: Section
142.3, Labor
Code. Reference: Section
142.3, Labor
Code; and Section
18943(b),
Health and Safety Code.
1. Amendment of
subsections (b)(3), (b)(4), (c)(2)(D) and (c)(2)(E) filed 6-23-77; effective
thirtieth day thereafter (Register 77, No. 26).
2. Amendment filed
6-23-87; operative 6-23-87 (Register 87, No. 27).
3. Amendment of
subsections (f)(1), (g), and (g)(3)-(4) filed 6-29-94; operative 7-29-94
(Register 94, No. 26).
4. Editorial correction of subsections
(f)(2) and (g)(2) (Register 95, No. 26).
5. New subsection
(d)(1)(D) and amendment of Note filed 5-8-2002; operative 6-7-2002 (Register
2002, No. 19).