Siemens NXPLUS C Installation And Operating Instructions Manual page 160

Medium-voltage switchgear, fixed-mounted circuit-breaker switchgear up to 24 kv, extendable, single busbar, metal-enclosed, gas-insulated
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Installation
Aligning and mounting
the cable bracket
160/293
The arcing plates in the cable compartment have been pre-assembled at the factory. For
cable installation, the arcing plates must be removed.
➭ After cable installation, position the arcing plates as close as possible to the front towards
the cables according to the cable T-plugs used.
➭ The distance between the arcing plates and the cable T-plugs must not exceed a maximum
of 15 mm.
➭ The mounted arcing plates must not touch the cable T-plugs.
➭ Do not damage the cable T-plugs while mounting the arcing plates.
Fig. 118: Arcing plate at the cable connection (one cable per
phase)
➭ Mount the arcing plate on the mounting plate in the cable compartment (tightening
torque: 20 Nm).
➭ Mount the floor plate of the floor cover (see page 156, "Mounting the floor plates").
The cable bracket can be mounted in the cable compartment at two different heights:
• Upper position: For panels with cable-type current transformers at the panel connection
• Lower position: For panels without cable-type current transformers at the panel connection
➭ Align the cable bracket and bolt it tight.
Fig. 119: Cable bracket, type C40
➭ Mount the cable clamps. Use cable clamps made of non-magnetizable materials (plastic,
aluminum) to fasten the high-voltage cables at the cable bracket, e.g. plastic clamps make
id-Technik (cable clamp K26-38 mm, cable clamp K36-52 mm).
Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9
INFORMATION
Mounting plate
Cable T-plugs
Air guide
Fixing at the switchgear
vessel
Switchgear vessel

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