Bringing Street Cables Into The Cabinet (Earthing And Sealing Cables) - Siemens ST950/ Plus+ Installation Method Statement

Controller Cabinet
Method Statement

3.3 Bringing street cables into the cabinet (earthing and sealing cables).

The components on the Sealed Base Kit are described in Figure 8.
1. Loosen nuts on the top clamps.
2. Remove top clamp.
3. Remove base plug from the base seal block.
4. Remove the stool door.
5. Feed cable up into cabinet through the base plate and compression seal.
6. If cable is loose in the compression seal then select a suitable shim for the cable diameter.
Note – Shims available are 667/2/53033/000 – 9mm, 667/2/53033/001 – 12mm,
667/2/53033/002 - 15mm.
7. Check length of cable required to reach its termination point.
8. Ensuring that the cable length is suitable for termination, cut through cable and armouring
with a suitable tool.
9. The armouring must fan out to 90 degree's with a 30mm diameter to be clamped properly.
See Figure 8. Strip back outer sheath of cable exposing the correct length of armouring to be
bent down to achieve this.
10. Check the inner cable cores are able to pass through the holes in the top clamp. If the holes
are too small then replace the top clamp with the larger 22mm diameter option
(667/2/53017/001).
11. Using pliers bend armouring out to 90 degrees.
Earth Connection
An earth connection is made by sandwiching the cable armouring between the top and bottom clamps. It
is important that the clamping force is applied evenly across the clamp plates so please make sure that
cable armouring does not overlap between cables.
1. Repeat for the next cable (up to 4 cables per compression seal). Note – 1no. compression
seal block is provided directly under the master switch panel this for mains, BT etc. In
addition, there are another 4 seal blocks provided (16 cable entries for street cables),
See Figure 7. If more cable entries are required use the Plus+ cabinet seal expansion kit
– Extra 8 Cables - 667/1/53065/008.
2. Replace the top clamp and nuts.
Controller Cabinet Stool Installation
Method Statement
Stool Installation
Page 12 of 13
667/CC/53060/000
See Figure 8
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