Mounting and Commissioning
3.1 Mounting and Connections
SIPROTEC, 7SK80, Manual
E50417-G1140-C344-A4, Release date 08.2010
294
As single wires, solid conductors as well as stranded conductors with conductor sleeves can be used. Up to
two single wires with identical cross-sections can be used per connection.
Alternatively, short cicuit links (Order no. C53207-A406-D193-1) can be used for vertically arranged terminal
points. If short circuit links are used, only ring lugs are permitted.
When connecting single wires, the following cross-sections are allowed:
Mechanical Requirements
The fixing elements and the connected components are designed for the following mechanical requirements:
Cable cross-section: AWG 14-10 (2.0 mm
2
to 5.2 mm
2
)
Conductor sleeve with plastic sleeve L = 10 mm (0.39 in) or L = 12 mm (4.47 in)
Stripping length:
(when used without conductor sleeve)
15 mm (0.59 in)
Only solide copper wires may be used.
Permissible tightening torque at the terminal screw 2.7 Nm (23.9 lb.in)
With solid conducters the allowed
maximum tighting torque is 2 Nm
Permissible traction per connected conductor 80 N based on IEC 60947-1 (VDE 660, Part
100)
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