WORK BY OTHER TRADES: Traction Elevator(s)
The following represents an outline of work by other trades that may be required and must be considered
in support of this project:
Electrical:
1.
10.
11.
Provide 208Volts ~ Phase — 60 cycle AC grounded power supply, for each elevator, through
fused, lockable safety switches in the machine rooms. The service/disconnect switch to be sized
based on the characteristics of new elevator hoist motors and variable frequency static drives.
The disconnect switch must be located within 18” of the strike side of the machine room door.
The existing line side feeds may be reused and extended if properly configured, sized and in
suitable condition.
Provide 208Volts — -Phase — 60 cycle AC grounded power supply through fused, lockable safety
switch in the elevator machine room for power freight door equipment. The service and
disconnect switch to be sized based on the characteristics of new equipment and located
adjacent to new high voltage service disconnect(s).
Provide a dedicated, earth ground for high and low voltage elevator. services.
Provide a 120vac 1ph 60cy 15amp branch circuit for each elevator with an enclosed externally
operable fused, lockable disconnect for car lighting and accessories. Low voltage service
switches to be located adjacent to the high voltage service switches. Provide feed wires in pipe
from the load side of the high and low voltage service, disconnect switches to the new elevator
controls using properly sized copper conductors. Final connection at elevator controllers are to be
completed by Stanley Elevator, [UEC field employees.
Provide 120vac grounded service with means of disconnect for machine room power ventilation
equipment as required.
Provide feed wires in pipe from the load side of an enclosed externally operable fused, lockable
disconnect switch to the ventilation equipment using properly sized copper conductors.
Provide a 120vac 1ph 60cy 15amp AC grounded branch circuit with means of disconnect for
elevator security cameras if are being installed. Note: Others are to provide ail wire and conduit
associated with this feature.
Provide sufficient machine room lighting (min. 10’ candles at the floor) with switch located inside,
on the strike side of the machine room door. Light fixtures to be permanently fastened to the
ceiling or support surface with protective guards over bulbs.
Remove any temporary or permanent, non-elevator electrical services and associated equipment
from the elevator machine rooms.
Perform a detailed evaluation of the existing emergency power system. Modify, relocate
or replace the generator, associated transfer switch gear and feed wires if necessary. The system
must provide standby power of the same characteristics as normal power to start and run one
elevator at a time, in each building, at full contract speed. The system must be capable of
absorbing regenerative power during an overhauling load condition.
Provide a normally open signal that indicates loss of normal power from the emergency power
transfer switch to the elevator machine rooms to facilitate automatic emergency power sequence
feature. Provide an additional 10-20 second “pre-transfer” signal that indicates return to normal
power from emergency generated power. Signal feeds to be furnished, piped and pulled from the
transfer switch to a junction box adjacent to the new elevator controllers. Final connection at
elevator controllers to be completed by Stanley Elevator, IUEC field employees.
Page 10 of 13
Proposal # 6021
Ref Id: Mod-09686 - 6/22/2016
