10180579_26 CIVIC CENTER PLAZA - Plan (2)

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all elevators at the same time. Where the standby power source is not of sufficient capacity to operate all elevators at the same time, all elevators shall transfer to standby power in sequence, return to the designated landing and disconnect from the standby power source. After all eleva- tors have been returned to the designated level, at least one elevator shall remain operable from the standby power source. [F] 3003.1.4 Venting. Where standby power is connected to elevators, the machine room ventilation or air condi- tioning shall be connected to the standby power source. [F-] 3003.2 Fire-fighters' emergency operation. Elevators shall be provided with Phase I emergency recall operation and Phase II emergency in-car operation in accordance with California Code of Regulations, Title 8, Division 1, Chapter 4, Subchapter 6, Elevator Safety Orders. 3003.2.1 Floor numbers. Elevator hoistways shall have a floor number not less than 4 inches (102 mm) in height, placed on the walls and/or doors of the hoistway at inter- vals such that a person in a stalled elevator, upon opening the car door, can determine the floor position. 3003.2.1.1 Fire signs. All automatic elevators shall have not less than one sign at each landing printed on a contrasting background in letters not less than '/2 inch (12.7 mm) high to read: IN CASE OF FIRE USE STAIRWAY FOR EXIT. DO NOT USE ELEVATOR. 3003.2.1.2 Call and car operation buttons. Automatic passenger elevators shall have call and car operation buttons within 60 inches (1524 mm)of the floor. Emer- gency telephones shall also be within 60 inches (1524 mm) of the floor. [F] 3003.3 Standardized fire service elevator keys. All ele- vators shall be equipped to operate with a standardized fire service elevator key in accordance with the California Fire Code. SECTION 3004 HOISTWAY VENTING 3004.1 Vents required. Hoistways of elevators and dumb- waiters penetrating more than three stories shall be provided with a means for venting smoke and hot gases to the outer air in case of fire. Exception: Venting is not required for the following ele- vators and hoistways: 1. In occupancies of other than Groups R-1, R-2, R- 2.1, I-2 and similar occupancies with overnight sleeping units, where the building is equipped throughout with an approved automatic sprinkler system installed in accordance with Section 903.3,1.1 or 903.3.1.2. 2. Sidewalk elevator hoistways. 3. Elevators contained within and serving open parking garages only. 4. Elevators within individual residential dwelling units. 2013 CALIFORNIA BUILDING CODE ELEVATORS AND CONVEYING SYSTEMS 3004.2 Location of vents. Vents shall be located at the top of the hoistway and shall open either directly to the outer air or through noncombustible ducts to the outer air. Noncombusti- ble ducts shall be permitted to pass through the elevator machine room, provided that portions of the ducts located outside the hoistway or machine room are enclosed by con- struction having not less than the fire-resistance rating required for the hoistway. Holes in the machine room floors for the passage of ropes, cables or other moving elevator equipment shall be limited as not to provide greater than 2 inches (51 mm) of clearance on all sides. 3004.3 Area of vents. Except as provided for in Section 3004.3.1, the area of the vents shall be not less than 39- per- cent of the area of the hoistway nor less than 3 square feet (0.28 mt for each elevator car, and not less than 3'4 percent nor less than 0.5 square feet (0.047 mz) for each dumbwaiter car in the hoistway, whichever is greater. Of the total required vent area, not less than one-third shall be permanently open. Closed portions of the required vent area shall consist of openings glazed with annealed glass not greater than '/8 inch (3.2 min) in thickness. Exception: The total required vent area shall not be required to be permanently open where all the vent open- ings automatically open upon detection of smoke in the elevator lobbies or hoistway, upon power failure and upon activation of a manual override control. The manual over- ride control shall be capable of opening and closing the vents and shall be located in an approved location. 3004.3.1 Reduced vent area. Where mechanical ventila- tion conforming to the California Mechanical Code is pro- vided, a reduction in the required vent area is allowed provided that all of the following conditions are met: 1. The occupancy is not in Group R-1, R-2, R-2.1 or I- 2 or of a similar occupancy with overnight sleeping units. 2. The vents required by Section 3004.2 do not have outside exposure. 3. The hoistway does not extend to the top of the build- ing. 4. The hoistway and machine room exhaust fan is auto- matically reactivated by thermostatic means. 5. Equivalent venting of the hoistway is accomplished. 3004.4 Plumbing and mechanical systems. Plumbing and mechanical systems shall not be located in an elevator hoist- way enclosure. Exception: Floor drins, sumps and sump pumps shall be permitted at the base of the-hoistway enclosure provided they are indirectly connected to the plumbing system. SECTION 3005 CONVEYING SYSTEMS 3005.1 General. Escalators, moving walks, conveyors, per- sonnel hoists and material hoists shall comply with the provi- sions of Sections 3005.2 through 3005.4. 415