Download SECTION 16510

SECTION 16510
LOW VOLTAGE CONTROL - LIGHTING
510.01
GENERAL
A.
Manufacturer
Equipment necessary to provide a complete low voltage, control
system shall be General Electric.
B.
Catalog Numbers
General Electric catalog numbers are specified for sole purpose of
establishing standards of quality and essential performance
characteristics, and not to exclude equal equipment of other
manufacturers. Substitutions must receive written approval.
C.
510.02
1.
277-Volt lighting shall be controlled by a low-voltage (24V)
system, as indicated on the drawings and schedules.
2.
The system shall be complete with, but not limited to,
transformers, relays, switches, master switches, wall plates and
wiring.
3.
Remote control components shall be from the same manufacturer
and installed in accordance with the recommendations of said
manufacturer.
4.
Remote control wiring shall be in accordance with Article 725,
Class 2 of the National Electric Code, unless otherwise noted on
the drawings.
SYSTEM COMPONENTS
A.
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Description
Relay Cabinet
1.
The Relay Cabinets shall be General Electric, RB3, suitable for
twenty-four (24) relays, unless otherwise noted on the drawings.
2.
The Relay Cabinet(s) cover shall be #RB3CF for flush mounting or
#RB3CS for surface mounting. Required mountings shall be as
indicated on the drawings.
3.
The Contractor shall provide a 277V, 60 Hz primary, 75 Volt-Amp
momentary, 40 Volt-Amp continuous, 24-Volt secondary Type
RT2 transformer in the cabinet.
4.
The Contractor shall provide all necessary bus bars, terminal
strips and steel separators for high and low voltage sections.
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SECTION 16510
LOW VOLTAGE CONTROL - LIGHTING
5.
6.
B.
C.
The Contractor shall provide a silicon, half-wave General Electric,
#RA16, rectifier for the operation of relay coils at 24 volts D.C.
The Contractor shall provide General Electric, #RR7, Control
Relays rated 20 amps, at 277 volts AC. The required number of
relays shall be as indicated on the drawings.
Switching
1.
Switching shall be in accordance to Title 24, State of California.
2.
The preferred method of mounting switches will be with “On-Off” in
a vertical direction with “On” at the top.
3.
Where motion control may be used to control energy
consumption, consider the use of the “Watt Watcher” or approved
equal.
Control Wiring
Low voltage switching wire shall be a minimum of #20 AWG, as
indicated on the drawings. Wiring routed in the space above the
ceiling shall be plenum rated where the space is used as an open air
plenum.
***END OF SECTION 16510***
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