Appendix A. Torque Values - GE AKD-20 AR Installation And Maintenance Manual

AKD-20 AR / Entellisys AR Low-voltage Switchgear

Appendix A. Torque Values

Appendix A. Torque Values
Table A.1 Torque values for electrical hardware other than
cable terminals (Copper, Tin or Silver Plated)
Hardware Size Torque (1)(2) (ft.-lbs.)
#10-32 4-5
#12-24 4-5
¼-20 7-10
3/8-16 25-30
½-13 35-40
5/8-11 45-55
These torque values are for non-lubricating threads
(1)
Standard nut with conical spring washer or lock washer
(2)
NOTICE: When installing parts or components to the
compartment molded base, torque ¼ inch screws slowly
and do not exceed nine ft.-lbs.
65
Courtesy of NationalSwitchgear.com
Table A.2 Torque values for cable terminals
Wire Size Torque (1)(2) (in.-lbs.)
6
5
100
4
3
3
2 125
1
0
150
00
000
0000 200
200,000
250,000
300,000
250
350,000
400,000
500,000
600,000
300
700,000
750,000
800,000
900,000 400
1,000,000
1,250,000
1,500,000
500
1,750,000
2,000,000
These torque values are for non-lubricating threads
(1)
Torque values provided for reference only. Follow cable
(2)
terminal manufacturer's recommended torque values.
©2016 General Electric. All rights reserved.
DEH-41473