infinity
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- Reaction score
- 214
Ok, i have a DB with a 200A supply from a 75mm SWA 4C
They want to re-supply another board in the same area from this supply, the other board has 25mm singles in metal trunking running past this DB so i can pull them into it easy enough.
i cannot put the tails init this DB as its an old Siemens DB and i won't be able to get 100A MCB for It.
So my thinking was, pull the 75mm SWA out of the DB, as it runs down the wall and into it bottom entry, then i will need a 100A switch fuse to the other board, but cannot get 75mm into it, so maybe a small busbar chamber then 2 100A switch fused isolators under it, one supplying the existing DB and one going to the other one to be Re-suppied.
Im trying to get some ideas can you think of any other ways to achieve what i need to achieve?
They want to re-supply another board in the same area from this supply, the other board has 25mm singles in metal trunking running past this DB so i can pull them into it easy enough.
i cannot put the tails init this DB as its an old Siemens DB and i won't be able to get 100A MCB for It.
So my thinking was, pull the 75mm SWA out of the DB, as it runs down the wall and into it bottom entry, then i will need a 100A switch fuse to the other board, but cannot get 75mm into it, so maybe a small busbar chamber then 2 100A switch fused isolators under it, one supplying the existing DB and one going to the other one to be Re-suppied.
Im trying to get some ideas can you think of any other ways to achieve what i need to achieve?