Wiring Inspection
28
9.0
W
IRING
I
NSPECTION
1. Verify all power connections are tightened per the torque specifications in
Table 3
.
2. Verify all control wire terminations are tight.
3. Verify all power wires and connections have proper spacing between exposed surfaces, phase-to-
phase and phase-to-ground.
4. Verify that all control wires are run in steel conduit, separate from all power wiring.
Use 75°C copper wire. Select wire size based on the ampacities in
Table 5
of this manual, a reprint of
Table 310-16 and associated notes of the National Electrical Code (NFPA 70).
Use commercially available solderless lugs for the wire size required for your application. Refer to
Table 3
. Connect wire to the lug using tools and procedures specified by the lug manufacturer.
Table 2
Power wiring terminals, factory supplied
UPS Module Rating
Connection Type
500kVA,
6-Pulse Rectifier
All power connections are top or bottom cable entry to busbars on the right side of
module.
500kVA,
12-Pulse Rectifier
Busbars for DC input, AC output, Neutral and Ground are provided on the right side of
module, with top or bottom cable entry. Rectifier input is top entry directly to lugs on top
of input circuit breaker.
625-750kVA,
standard models with
standard input
Busbars for AC output, Neutral and Ground are provided on the right side of module,
with top or bottom cable entry. Rectifier input is top entry directly to lugs on top of input
circuit breaker. DC input is top entry to busbars.
750kVA/675 kW
and other modules with
optional input busbar kit
Busbars for AC output, Neutral and Ground are provided on the right side of module,
with top or bottom cable entry. Rectifier input and DC input are top entry to busbars.
Table 3
Torque specifications
NUT AND BOLT COMBINATIONS
Bolt Shaft Size
Grade 2 Standard
Electrical Connections
with Belleville Washers
Lb-in
N-m
Lb-in
N-m
1/4
53
6.0
46
5.2
5/16
107
12
60
6.8
3/8
192
22
95
11
1/2
428
22
256
29
CIRCUIT BREAKERS WITH COMPRESSION LUGS (FOR POWER WIRING)
Wire Size or Range
Lb-in
N-m
#6 - #4
100
11
#3 - #1
125
14
1/0 - 2/0
150
17
3/0 - 200 MCM
200
23
250 - 400 MCM
250
28
500 - 700 MCM
300
34
CIRCUIT BREAKERS WITH COMPRESSION LUGS (FOR POWER WIRING)
Current Rating
Lb-in
N-m
400 - 1200 Amps
300.00
34.00
TERMINAL BLOCK COMPRESSION LUGS (FOR CONTROL WIRING)
AWG Wire Size or Range
Lb-in
N-m
#22 -#14
3.5 to 5.3
0.4 to 0.6
NOTE:
Use the values in this table unless the equipment is labeled with a different torque value.
Summary of Contents for Liebert Series 610
Page 69: ...Installation Drawings 63 Figure 44 Battery power pack system 88 797616 03 Rev 08 ...
Page 70: ...Installation Drawings 64 Figure 45 Battery power pack Size A 88 797616 01 Rev 10 ...
Page 104: ...Installation Drawings 98 ...
Page 109: ...Site Planning Data Series 610 500 750kVA Multi Module Systems 103 NOTES ...
Page 110: ...Site Planning Data Series 610 500 750kVA Multi Module Systems 104 ...
Page 111: ......
