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Old 06-16-2015, 07:46 PM   #1
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Default wiring to 5 amp main system

A client of ours has asked us if our products have the ability to be wired into to 5 amp main system. We manufacture chandeliers, wall sconces, and floor and table lamps and have end uses in UK and Europe. We buy the parts needed to wire for UK and Europe, including sockets, plugs, cords (and cordsets), switches, and transformers. Some of the plugs for UK have fuses, but we do not use fuses in our fixtures (i.e., sconces and chandeliers).

What is required to be able to wire for a 5 amp main system. Should I ask the client more questions?
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Old 07-08-2015, 03:56 AM   #2
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5A minimum capacity wiring. Or if the load cannot be more than a lower capacity, say 2x 40w candle bulbs for instance, then thinner wiring could be used as long as it was capable of carrying the load and would allow the protective device (5A) to operate in the event of a short circuit. Though it may in practice be prudent to size the wiring for the larger size (probably 0.75mm in this case without looking it up) for mechanical purposes, I.e. to not break too easily.

Other factors of course would be earthed metalwork or double insulation and compliance with any relevant standards such as The Low Voltage Directive as you will already do for elsewhere in the EU.

Fuses would not normally be provided in wall sconces or chandeliers.
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Old 07-08-2015, 04:44 AM   #3
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To add to the above, now I've looked to see where you are from, any screw in (ES, SES, GES) lampholders should be wired with the neutral to the screw part, and UK coloured wiring rated to at least 300V and of the correct temperature rating for the fitting. Any switched should only be fitted in the phase conductor and there are special requirements for anything used in bathrooms where luminaries need to be enclosed.

If you haven't already, get yourself a copy of BS 7671 wiring regulations. Also contact British Standards for any other standards you may need. It may be cost effective to join British Standards as publications are then available at a reduced rate, mostly 1/2 price. They are helpful to a point but cannot provide contents of standards for you to decide if they are relevant.

You will of course need to test the fittings and CE mark them once the standards are complied with (which should not be too onerous).
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Old 07-08-2015, 12:11 PM   #4
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Thanks for that detailed info - I will try to get the BS 7671 wiring regulations so that we can make sure that we follow the standards.
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Old 07-08-2015, 12:25 PM   #5
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No problem Lars, 7671 covers everything from a watch battery to a power station, but you will almost certainly need the low voltage directive too. Being the EU, there's a lot of standards to follow but BS 7671 is what we should follow for installations. It gives guidance on luminaire wiring, but this is not necessarily all you will need as a manufacturer. Worth talking to BSI (British Standards) for guidance and doing some research on good old Google. Everything has to be CE marked where practical unless it is passive (like a nut) and probably needs instructions on fitting and connecting, RoHS compliance, and the WEEE directive on Waste Electrical items. Possibly a good route to take would be to order a light fitting from a UK outlet and look to see what is supplied.
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Old 08-13-2015, 03:07 AM   #6
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There’s a 1mm diameter difference between US and UK ES caps. At this time in the morning I can’t remember which way round it is. I do know I ended up with a handful of broken glass.

BS7671 won’t give the standards you require, you will need the relevant BS-EN document. If importing to Europe CE certification is needed.
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