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Essex1
No need to think to hard about it. If the CU is made of NC material it complies. Simple.
No, that's a self-extinguishing material.A non-combustible material is one that self-extinguishes when exposed to fire.
So why the "and" of 421.1.201(i)? Does that mean anything beyond a requirement for 61439-3 compliance - and, if not, why is it there?No need to think to hard about it. If the CU is made of NC material it complies. Simple.
So why the "and" of 421.1.201(i)? Does that mean anything beyond a requirement for 61439-3 compliance - and, if not, why is it there?No need to think to hard about it. If the CU is made of NC material it complies. Simple.
Kind Regards, John
C'mon. You're slipping.Who cares?
Just follow the regulation. End of.
I care (and so, I suspect, do many others) since I can't "just follow the regulation" unless I understand it.Who cares? Just follow the regulation. End of.So why the "and" of 421.1.201(i)? Does that mean anything beyond a requirement for 61439-3 compliance - and, if not, why is it there?
C'mon. You're slipping.Who cares?
Just follow the regulation. End of.
I care (and so, I suspect, do many others) since I can't "just follow the regulation" unless I understand it.Who cares? Just follow the regulation. End of.So why the "and" of 421.1.201(i)? Does that mean anything beyond a requirement for 61439-3 compliance - and, if not, why is it there?
Being clever, you do understand, so please tell me (and the others) ... if a CU 'merely' complies with BS EN 61439-3 (and nothing beyond the requirements of that Standard) is it Amd3-compliant, or not?
Kind Regards, You
So you believe (or 'know') that they mean "must be compliant with BS EN 61439-3 AND must be compliant with the non-combustibility requirement of BS EN 61439-3"?Again. The word 'and' is a commonly used English word. To comply with that reg both comments must be adhered to IMO.
Are you familiar with material standards? Specifically, the IEC 60695 series?No, that's a self-extinguishing material.A non-combustible material is one that self-extinguishes when exposed to fire.
Check again
Check that, one does not have to follow BS7671. The requirement is that the design and installation process is such that the installation is safe and presents a reasonably low risk of damage or injury when used.Not really. It is silly to second guess BS7671 because we all know it needs to be followed.
He is presented as omniscient.Are you familiar with material standards?
You may need to revise that.[ Ie - safely isolate and get the tester into a position of safety.
Check that, one does not have to follow BS7671. The requirement is that the design and installation process is such that the installation is safe and presents a reasonably low risk of damage or injury when used.Not really. It is silly to second guess BS7671 because we all know it needs to be followed.
BS7671 is a standard which if followed will ( should ) result in an installation that is safe and will have an acceptable low risk of damage or injury when used.
And non combustible material does not burn, it cannot burn but it can melt or create other hazards when over heated.
You may need to revise that.[ Ie - safely isolate and get the tester into a position of safety.
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