TP-6833 2/16
27
Section 2 Installation
Install and test the power cables.
Leave sufficient
slack in the power leads to reach all of the power
connecting lugs on the power switching device. Test the
power conductors before connecting them to the
transfer switch. Installing power cables in conduit, cable
troughs and ceiling-suspended hangers often requires
considerable force. Pulling cables can damage
insulation and stretch or break the conductor’s strands.
Test the cables after pulling them into position and
before
they are connected to verify that they are not
defective and that they were not damaged during
installation.
Install the cable spacers provided with 30--200 amp
switches as shown in Figure 2-22.
1
1. Cable spacers
1
127
Figure 2-22
Cable Spacers for 30--200 Amp Switches
Connect the cables.
Be careful when stripping
insulation from the cables; avoid nicking or ringing the
conductor. Clean cables with a wire brush to remove
surface oxides before connecting them to the terminals.
Apply joint compound to the connections of any
aluminum conductors.
Refer to the wiring diagram provided with the switch.
The connection points on the contactor are labeled
Normal, Emergency, and Load. Be sure to follow the
phase markings (A, B, C, and N). For single-phase
systems, connect to A and C.
Note:
Connect the source and load phases as
indicated by the markings and drawings to
prevent short circuits and to prevent phase-
sensitive load devices from malfunctioning or
operating in reverse.
Tighten the lugs.
Verify that all connections are
consistent with drawings before tightening the lugs.
Tighten all cable lug connections to the torque values
shown on the label on the switch. (See Figure 2-24 for a
typical rating/torque label.) Carefully wipe off any
excess joint compound after tightening the terminal
lugs.
For load connections to bus bars, use a compression
washer, flat washer, and a minimum grade 5 bolt and
torque the connections to the values in Figure 2-23.
Bolt Size, inches
Bolt Torque
ft. lb.
Nm
1/4
7
9.5
5/16
12
16.3
3/8
20
27.1
1/2
50
67.8
5/8
95
128.8
3/4
155
210.2
Figure 2-23
Tightening Torque for Bus Bars
USE COPPER OR ALUMINUM WIRE
FOR POWER TERMINALS
RECOMMENDED TIGHTENING
200 480 FUSE ANY CLASS J
TORQUE 600
IN--LBS
AMPS AT THE VOLTAGE SHOWN.
BREAKER/MFR/TYPE
DELIVERING NOT MORE THEN THE RMS SYMM
RATED FOR USE ON A CIRCUIT CAPABLE OF
ONLY OR BY FUSES THIS TRANSFER SWITCH IS
WITHOUT AN ADJUSTABLE SHORT--TIME RESPONSE
WHEN PROTECTED BY A CIRCUIT BREAKER
SWITCH RATING, 240V MAX.
TUNGSTEN LOAD DOES NOT EXCEED
% OF
NOT EXCEED THE SWITCH AMP RATING AND THE
LOAD AMPS AND AMPS OF OTHER LOADS DOES
ING EQPT, WHERE THE SUM OF MOTOR FULL--
DISCHARGE AND TUNGSTEN LAMPS, ELEC HEAT--
SUITABLE FOR CONTROL OF MOTORS, ELEC
RMS SYMM
VOLTS
MAX
X1000
AMPS
MAX
AMPS
42 480 GE SGL4,SGP4,TB4,
400
THLC4,TLB4
400
SKHA,SKL8,SKP8,TKL
SGLA,SGL6,SGP6,TB6
800
600
42 480 I--T--E CJD6,HHJD6,
400
CLD6,HHLD6,HHLXD6,HLD6,
HHJXD6,HJD6,SCJD6,SHJD6
600
400
CMD6,HMD6,HND6,MD6,MXD6,
SCLD6,SHLD6
800
600
SCMD6,SHMD6,SMD6,SND6
800
MH
42 480 SQUARE D LC,LI
800
600
42 480 WESTH HKD,KDC,LCL,
400
HLD
TRI--PAC LA
600
400
TRI--PAC NB
800
100
35
22
600
480
ANY
ANY
ANY
ANY
ANY
ANY
PER NEC
PER NEC
483500--007
B
REV
USE 75
C MIN. CU/AL WIRE FOR POWER
CONNECTIONS. USE 60
C MIN. CU WIRE FOR
CONTROLS.
600
42 480 MERLIN GERIN
42 480 ABB S5
CJ600
S6
400
600
800
007
1
1. Torque specification
Figure 2-24
Typical Rating/Torque Label
Содержание KCC
Страница 50: ...TP 6833 2 16 50 Section 4 Communication and Accessory Connections Notes...
Страница 54: ...TP 6833 2 16 54 Section 5 Functional Tests and Setup Notes...
Страница 57: ...TP 6833 2 16 57 Notes...
Страница 58: ...TP 6833 2 16 58 Notes...
Страница 59: ......