Torque Fasteners; Torque Table - ABB Emax Link 2 UR 1558 Application Manual

E M A X L I N K 2 A B B R E V I AT E D LV S W I TC H G E A R A P P L I C AT I O N G U I D E
24
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Installation guidelines

Torque fasteners

Heat generated by improper terminal torque is a
leading cause of equipment failure. Torque
terminals to the values shown in the table.
Once torqued to the proper value, draw an "X"
across the fastener head and the surrounding
metal surface so you can visually check whether
the fastener has changed position and may require
attention. Bolts torqued at the factory will be
marked in the same way.
The torque tables apply to horizontal component
screw connections, vertical bus bar screw
connections, electrical terminal connections and
structural components of the Emax Link 2
Abbreviated LV Switchgear.
Note: For equipment connections and mountings,
see the manufacturers' technical data sheets.

Torque table

Torque fasteners as specified below when
assembling the switchgear.
Emax Link 2 LV switchgear torque table
Union
Description Screw
Splice kit connections
Breaker connections
Run-ins / run-backs 3/8-16
to E1.2 breaker
Run-ins / run-backs 3/8-16
to E2.2 breaker
Run-ins / run-backs
1/2-13
to E4.2 breaker
Run-ins / run-backs 1/2-13
to E6.2 breaker
Bus bar ground connections
Run-ins to vertical riser 1/2-13
"L" connection to
1/2-13
vertical riser
"L" connection to 1/2-13
horizontal bus
Ground bracket to frame 3/8-16
Insulating barrier and support connections
Run-backs to cable
3/8-16
compartment barrier
Run-backs to lug pads 1/2-13
GPO3 cable compartment
1/4-20
barrier to frame
GPO3 to riser 3/8-16
support bracing
Exterior metal panels and enclosures
Frame assembly 1/4-20
Top plate to frame
1/4-20
Bottom plate to frame
1/4-20
Compartment to frame 1/4-20
Front door to frame 1/4-20
Rear door / panels to frame 1/4-20
English
(ft/lbs)
33
33
78
78
78
78
78
33
33
78
10
33
10
10
10
10
10
10