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421.1.201

lyledunn
I note that this U.K. only regulation is now included in the new Irish standard IS10101:2020 as sub-clause 421.2. I am not sure if this is the U.K. committee persuading the Irish committee of the merits of non-combustible consumer units or if the U.K. committee has persuaded CENELEC such that the regulation will be included in future amendments to HD60364-4-42. Anyone know?

By the way, unlike the U.K. regulation the Irish equivalent does not seem to allow for the alternative of placing a plastic unit in an enclosure constructed of non-combustible material.
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    I am not sure if this is the U.K. committee persuading the Irish committee of the merits of non-combustible consumer units or if the U.K. committee has persuaded CENELEC such that the regulation will be included in future amendments to HD60364-4-42. Anyone know?

    I don't ... but I might guess at a third possibility - the manufacturers are pushing metal CUs.


    (Far be it from me to suggest that they might have a vested interest in suggesting that the only way to have a fire-safe CU is to have a metal one - and thus problems with plastic ones were inherent, unavoidable and so nothing in particular to do with them - rather than letting people wonder why the plastic ones kept bursting into flames when the product standard required them to pass a glow-wire test).


       - Andy.
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    I am not sure if this is the U.K. committee persuading the Irish committee of the merits of non-combustible consumer units or if the U.K. committee has persuaded CENELEC such that the regulation will be included in future amendments to HD60364-4-42. Anyone know?

    I don't ... but I might guess at a third possibility - the manufacturers are pushing metal CUs.


    (Far be it from me to suggest that they might have a vested interest in suggesting that the only way to have a fire-safe CU is to have a metal one - and thus problems with plastic ones were inherent, unavoidable and so nothing in particular to do with them - rather than letting people wonder why the plastic ones kept bursting into flames when the product standard required them to pass a glow-wire test).


       - Andy.
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