Communal lighting improvements for a block of flats in Stevenage.
A new first-floor lighting circuit, an emergency lighting test key switch and tidy metal conduit, delivered for a housing improvement programme.

As part of block improvement works for a council housing provider, a main contractor asked SEG to add a first-floor lighting circuit, an emergency lighting test key switch and to reroute ageing communal conduit.
| Location | Stevenage (SG1) |
|---|---|
| Completed | August 2025 |
| Work | Communal and emergency lighting |
| Property | Low-rise block of flats |
| Time on site | Survey (Feb 2025), works (Apr 2025), testing and handover (13 Aug 2025) |
| SEG team | Noel, Petar and Luke |




What we found
- TN-S supply; FuseBox board replaced in 2023 - not to be changed
- Push-fit conduit installed two years earlier, poorly routed
- Redundant old containment in the walkways and bin store
What we did
- Installed an additional lighting circuit on a new RCBO for the first floor
- Fitted an emergency lighting key switch in the intake cupboard
- Removed the old conduit and redundant containment
- Ran new metal conduit in the agreed positions, including the ground-floor alley and bin store
- Core-drilled for the first-floor circuit and made good with cement
- Reused the existing light fittings
- Tested the circuits (lighting and uplighter Zs 1.53 and 0.55 ohm; IR >200 megohm; RCD trip 30.8 and 34.8ms)
- Recorded nine emergency light fittings on an Emergency Lighting Identification Sheet
Equipment used
- Metal conduit
- RCBO
- Emergency lighting key switch
- QTR/1900NW emergency bulkheads x9 (recorded)
Paperwork: Emergency Lighting Identification Sheet.
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From SEG’s job records and engineers’ photos. Customer details are kept private.
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