As I pointed out on the last thread the majority of the main manufacturers boards satisfy the various standards and requirements of the Building Regulations for safety, fire, accessibility etc with regard to components, and once again my comment if you are fitting cheap boards for whatever reason you are in breach of the Building Regulations.
Most of the evidence surrounding consumer unit fires suggest that in the event of a overload or fault the fire originates outside the oxygen starved unit where the cables are, soft plastic, dirt, dust and other flammable materials such as wood then migrates to the consumer unit, whilst it is true that metal will not suffer in this sense at least you can wire brush and paint the unit with hammerite saving your customer some costs.
Definition of non-combustible:
BS 476: Part 4: 1970 Non-combustibility test for materials.
This test classifies materials as either 'non-combustible' or 'combustible'. It is the most stringent standard for the fire performance of materials and gives a measure of the heat and flames generated by the material under standard heating conditions. Non-combustible materials can be used without restriction anywhere in a building. Their use ensures that hazards due to smoke and toxic gases are "minimised" and that the fabric of a building will not make a contribution to a fire.
regards
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"Take nothing but a picture,
leave nothing but footprints!"
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"Oh! The drama of it all."
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"You can throw all the philosophy you like at the problem, but at the end of the day it's just basic electrical theory!"
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