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Mr. D.I.Y.-Bodger Strikes Again.

Zoomup

I came across a classic today.

Domestic garage fed from a house in S.W.A.

In the garage was a new split load consumer unit.

The customer complained about a lighting problem.

The quality of wiring was horrendously bad.

Entry holes in consumer unit has no grommets.

Wiring very untidy.

The split load consumer unit had just one continuous bus-bar.

Radial socket circuits wired in 2.5mm2 fed from 40 Amp and 32 Amp M.C.Bs, but see below.

Loose wires in two fluorescent fittings, they never could have worked as was stated by the owner.

Main protective device in the house supplying the garage was a 15 Amp hot wire fuse. (I know. I know what you are going to say).

Z.

 

 

 

 

 

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    One R.C.D was positioned extreme left next to the main switch. The other situated extreme right.

    There's at least one brand of CU where that's the intended arrangement … the hiccup I found with it was the installer had cut the busbars to length by just hacksawing through both the busbar and its plastic shield in a half-way between two bus-bar ‘fingers’ - thus when assembled the two bus-bars almost touched. Or rather, after I'd taken the lid off the CU and put it back, they did touch, resulting in both RCDs apparently randomly tripping. Cutting the copper bus-bars back to the edge of a finger (but not the plastic shields) solved the problem.

       - Andy.

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  • 0

    One R.C.D was positioned extreme left next to the main switch. The other situated extreme right.

    There's at least one brand of CU where that's the intended arrangement … the hiccup I found with it was the installer had cut the busbars to length by just hacksawing through both the busbar and its plastic shield in a half-way between two bus-bar ‘fingers’ - thus when assembled the two bus-bars almost touched. Or rather, after I'd taken the lid off the CU and put it back, they did touch, resulting in both RCDs apparently randomly tripping. Cutting the copper bus-bars back to the edge of a finger (but not the plastic shields) solved the problem.

       - Andy.

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