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Appendices
Appendix A
Table 2. Torque values for copper or aluminum
busbar connections
Bolt size
Torque Inch Lbs
#10
30 Inch Lbs.
1/4"
65 Inch Lbs.
5/16"
130 Inch Lbs.
3/8"
240 Inch Lbs.
1/2"
600 Inch Lbs.
N
ote:
For other torque values, refer to instruction leaflet for the specific
component .
*Some applications use (2) Belleville wahsers per bolt . Convex side up .
N
ote:
In these cases bolts should be torqued to 70 foot/ pounds .
Appendix B
Switchboard maintenance, testing, and inspection logs
Refer to the "Maintenance" section of this document on page 13
for detailed information .
Torque Foot Lbs
2.5 Foot Lbs.
5.4 Foot Lbs.
10.8 Foot Lbs.
HAZARDOUS VOLTAGE WILL CAUSE SEVERE INJURY OR DEATH.
20.0 Foot Lbs.
DE-ENERGIZE BOARD PRIOR TO SERVICING FUSIBLE DEVICES ONLY
50.0 Foot Lbs.
"QUALIFIED PERSONS" SHOULD INSTALL AND OR SERVICE THIS
EQUIPMENT.
TO PREVENT DAMAGE TO GROUND FAULT CONTROL CIRCUITS,
METERING CIRCUITS, TRANSIENT VOLTAGE SURGE PROTECTION (TVSS)
OR OTHER CONTROL CIRCUITS, WHEN MEGGERING SWITCHBOARD,
ISOLATE CIRCUITS FROM SWITCHBOARD SYSTEM BEFORE BEGINNING
THE MEGGER OPERATION. BE SURE TO RECONNECT THOSE CIRCUITS
AFTER MEGGER TESTS ARE COMPLETED.
NOTE: SOME GROUND FAULT CIRCUITS MAY NOT BE FUSED,
THEREFORE ISOLATION OF THOSE CIRCUITS REQUIRES DISCONNECTING
WIRING FROM BUS BARS.
DO NOT USE ALTERNATING CURRENT (AC) DIELECTRIC/ MEGGER
TESTING. DAMAGE TO COMPONENTS WILL OCCUR.
Instruction Manual IB015002EN
Effective November 2021
DANGER
WARNING
WARNING
EATON www.EatonCanada.ca/PRLCS
17
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