Clearing old electrics for the plumbers, then a fault-find, at a Hampstead office.
We stripped out redundant services so a law firm’s plumbing work could go ahead, then came back to trace sockets that were tripping the board.
A law firm’s office in Hampstead was having plumbing work done and needed redundant electrics cleared out of the way first. On a return visit, some sockets were tripping the board.
At a glance
| Location | Hampstead, Camden (NW3) |
|---|---|
| Completed | March 2026 |
| Work | Office electrical works and fault-finding |
| Property | Law firm’s office |
| Time on site | Two visits (25 Feb and 19 Mar 2026) |
| SEG team | Matthew |
What we found
- Redundant services in a cupboard: an old alarm and its switch, a double socket and the switch for a water heater
- A 6mm² supply on a 32A breaker that fed the old water heater
- On the return visit: an insulation resistance fault between the board and the first socket on the tripping circuit
- The board’s RCD main switch failed its test
What we did
- First visit: removed the redundant alarm, switches and socket, took the water heater supply out of the board and made all the dead cables safe, ready for the plumbers
- Return visit: refitted the cupboard cut-outs and removed power that was no longer needed there
- Tested the tripping circuit, disconnected the faulty section and made it safe
- Replaced a grommet strip in the board with a fire-sealed grommet
- Checked all the other circuits were working correctly
- Recommended a new board with RCBOs, so each circuit has its own protection, and a short run of trunking to re-feed the socket that lost power
Equipment used
- Kewtech KT63DL multifunction tester
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