Caution – GE Industrial Solutions Arc Vault Protection System User Manual

Page 48

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Arc Vault™ Protection System

DEH-41483 Rev. 3

40

© 2011 General Electric All Rights Reserved

APPENDIX A. Torque Values

Table A-1 Torque Values for Low- voltage Equipment Electrical Joint Hardware other than Cable Terminals (Copper, Tin

or Silver Plated)

Hardware Size

Torque* (ft/lbs)

Standard Nut with Conical Spring

Washer or Lockwasher

1/4-20 7-10

3/8-16 25-30

1/2-13 35-40

5/8-11 45-55

*These torque values are for non-lubricated threads

CAUTION

When installing parts or components to the

compartment molded base, torque 1/4-inch screws

slowly and do not exceed 9 ft/lbs.

Table A-2—Torque Values for Cable Terminals

Wire Size

Torque* (in/lbs)

6

5

4

3

100

3

2

1

125

0

00

150

000

0000

200,000

200

250,000

300,000

350,000

400,000

250

500,000

600,000

700,000

750,000

300

800,000

900,000

1,000,000

400

1,250,000

1,500,000

1,750,000

2,000,000

500

*These torque values are for non-lubricated threads.

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