Re: plans-2014 - Laserfiche WebLink

Home Browse Search

ELEVATORS AND CONVEYING SYSTEMS [F]3003.1.4 Venting.Where standby power is connected to provided, a reduction in the required vent area is a�� ` .;E�to,� elevators,the machine room ventilation or air conditioning provided that all of the following conditions are rnet: w�� ` '�esses shall be connected to the standby power source. 1. The occupancy is not in Group R-1,R-2,1_� �� nsrrw [F] 3003.2 Fire-�ighters' emergency operation. Elevators of a similar occupancy with overnight sleeping yud� ; r-�er'� shall be provided with Phase I emergency recall operation and ters. �d hoi: Phase II emergency in-car operation in accordance with ASME hoists ` A17.1. 2. The vents required by Section 3004.2 do not have�,Ut_ n�ce w side exposure. e��ord� 3. The hoistway does not extend to the top of the build. ; �.�econ' SECTION 3004 'n�' �f a peT HOISTWAY VENTING 4. The hoistway and machine room exhaust fan is auto_ matically reactivated by thermostatic means. �, 3004.1 Vents required.Hoistways of elevators and dumbwait- 5. Equivalent venting of the hoistway is accomplishe�l. ers penetrating more than three stories shall be provided with a means for venting smoke and hot gases to the outer air in case 3004.4 Plumbing and mechanical systems. Plumbing a��~ 3p06.1 of fire. mechanical systems shall not be located in an elevator shaft. �o elev� Exceptions: Exception: Floar drains, sumps and sump pumps shall be 3006.2 permitted at the base of the shaft provided they are indirectly ; solid-s� 1. In occupancies of other than Groups R-1,R-2,I-1,I-2 connected to the plumbing system. ��th ar and similar occupancies with overnight sleeping � protect quarters, venting of hoistways is not required where � system the building is equipped throughout with an approved SECTION 3005 � ��e E automatic sprinkler system installed in accardance CONVEYING SYSTEMS �� 3006.3 with Section 903.3.1.] or 903.3.1.2. � � 3005.1 GeneraL Escalators, moving walks, conveyors, per- � ressm 2. Sidewalk elevator hoistways are not required to be sonnel hoists and material hoists shall comply with the provi- � tion of vented. sions of this section. Y room. ' 3004.2 Location of vents.Vents shall be located at the top of 3005.2 Escalators and moving walks.Escalators and moving �` 3006.4 the hoistway and shall open either directly to the outer air or walks shall be constructed of approved noncombustible and �: machit through noncombustible ducts to the outer air.Noncombustible fire-retardant materials. This requirement shall not apply to �� t'ire ba� ducts shall be permitted to pass through the elevator machine electrical equipment, wiring, wheels,handrails and the use of .)blies c room, provided that portions of the ducts located outside the '/,g inch(0.9 mm)wood veneers on balustrades backed up with ing no� hoistway or machineroom are enclosed by construction having noncombustible materials. ;- served not less than the fire protection rating required for the hoistway. `� asseml Holes in the machine room floors for the passage of ropes, 3005.21 Enciosure. Escalator floor openings shall be � re ui cables or other moving elevator equipment shall be limited so enclosed with shaft enclosures complying with Section 707• 9 r� as not to provide greater than 2 inches(51 mm)of clearance on 3005.2.2 Escalators.Wl�ere providedin below-grade aans- 3006.' all sides. portation stations,escalators shall have a clear width of 32 machi� inches (815 mm)minimum. tected 3004.3 Area of vents. Except as provided for in Section dance 3004.3.1,the area of the vents shal]not be less than 3'/2 percent � Exception: The clear width is not required in existing be pro of t1�e area of the hoistway nor less than 3 square feet(0.28 m�) facilities undergoing alterations. suppl} for each elevator car,and not less than 3'/z percent nor less than 3005.3 Conveyors. Conveyors and conveying systems shall This n 0.5 square feet (0.047 m'-) for each dumbwaiter car in the comply with ASME B20.1. � klers c hoistway,whichever is greater.Of the total required vent area, nect tt 3005.3.1 Enclosure.Conveyors and related equipment con- Inot less than one-third shall be permanently open.Closed por- r�ecting successive floors or levels shall be enclosed with 3006.� tions of the required vent area shall consist of openings glaze� shaft enclosures complying with Section 707. � �ocate with annealed glass not greater than 0.125 inch (3.2 mm) in thickness. � 3005.3.2 Conveyor safeties. Power-operated conveyors. Exception: The total required vent area shall not be belts and other material-moving devices shall be equipp� � re uired to be ermanentl -o en where all the vent o enin s �'��automatic limit switches which will shut off the power � � p � p P g in an emergency and automatically stop all operation of the � automarically open upon detection of smoke in the elevator device. lobbies or hoistway,upon power failure and upon activation � of a manual override control. 3005.4 Personnel and material hoists. Personnel and mate- rial hoists shall be designed utilizing an approved method that � 3004.3.1 Reduced vent area. Where mechanical ventila- accounts far the conditions imposed during the intended opera- tion conforming to the Internatior2al Mechanical Code is tion of the hoist device.The design shall include,but is not 1im- 526 2006 INTERNATIONAL BUILDiNG CODE� 2006 I �