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GBDamo

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After the YY burnout posted in;-



I intend to rewire and have given a rough quote.

Background.

These lights are head height wall mounted intended to illuminate the engine bay of a car, 10 workstations in a large workshop.

At present they are through wired through each other so, if the cable goes in one they all go upstream.

The reasoning behind my intention is that should one fitting go then the a fuse will blow highlighting the damaged fitting and allow continuity of works with the other lights.

Also allows for the damaged light to be worked on without isolating the circuit (FCU option).

Intention

Is to re-wire in galv conduit in 2.5 singles running the whole circuit off a c25 MCB.

And

1, give each fitting it's own FCU fused to 3A

or (see Questions)

2, Fit a 5x20mm fuse holder to an IP65 JB and use a quick blow fuse.

Then flex down to each fitting from the FCU/JB.

The customer is keen on this approach if it is reasonably feasable.

Questions

1, I can't find a source I trust for a 3A BS1362 curve, BBB don't have it so can't be sure the BS1362 will go before the MCB, any pointers?

If the above is a non starter;-

2, Does anyone see an issue with the approach of fitting fuse holder to a JB and 5A F rated fuse, this route also allows me to down rate the circuit CSA and MCB and ?
 
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I'm not really with you there.
I wouldn't think they're wired in series, though.

edit. Just install led's fed from a 6amp mcb. If one's faulty, why would it affect the rest, unless it's a wiring fault or fitting short?
 
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think they are in parallel, but if 1 goes ---- up ( fried ballast is fav.) it takes out the MCB for all.
 
They will be wired 'daisy chain' fashion not in series but an earth leakage fault could still take the lot out (if protected by a RCD!)
Sounds like quite an expensive job!
 
And as has been suggested go for LED's , they will pay for themselves in no time .
They still need a circuit running in as the YY is fried, due to the environment it needs to be in galv.

Adding tend LED non corrosives to the bill would be a no go.
 
why not convert existing fittings to LED tubes?
 
They still need a circuit running in as the YY is fried, due to the environment it needs to be in galv.

Adding tend LED non corrosives to the bill would be a no go.
What fittings are you planning for....and how long a conduit run?
 

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