Kind of thought they were single pole (L) but now informed all uk sockets inc. domestic are DP switched.
Curiosity value only. Are they ?
Curiosity value only. Are they ?
In relation to an FCU, I would agree with you - unless, perhaps, the FCU was very close to where I was working (but, even then, there is the risk of accidental operation, particularly given that they are "down=on" switches).Even if known to be double pole and have the contact gap required for isolation I would be very reluctant to rely on a socket or FCU switch for safety isolation since it has no provision for lockout and very little resistance to accidental operation.
Both wrong.Kind of thought they were single pole (L) but now informed all uk sockets inc. domestic are DP switched.
No.Curiosity value only. Are they ?
All 7 brands of 'white' 13A sockets currently listed on TLCs website (BG, Contactum, Crabtree, MK, "Pure Range", Telco & "Ultimate Range") claim to have DP switches. In the case of Crabtree, there appears to also be a SP alternative available, but for all the other makes, one seems to have no choice but to have DP.As far as I'm aware the only sockets that are 2 pole switched are those specifically designed to use in touring caravans.
Socket-outlets are eminently suitable for isolation, if you pull the plug out and put it in a locked enclosure!AIUI there is no requirement for double pole switching in the standards, some brands do it anyway others don't.
Even if known to be double pole and have the contact gap required for isolation I would be very reluctant to rely on a socket or FCU switch for safety isolation since it has no provision for lockout and very little resistance to accidental operation.
Quite so - as I wrote ...Socket-outlets are eminently suitable for isolation, if you pull the plug out and put it in a locked enclosure!
Kind Regards, John....However, I don't see any issue in relation to sockets (whether DP or otherwise)- to achieve pretty foolproof isolation, one pulls the plug out
You missed the important part!Quite so - as I wrote ...Socket-outlets are eminently suitable for isolation, if you pull the plug out and put it in a locked enclosure!Kind Regards, John....However, I don't see any issue in relation to sockets (whether DP or otherwise)- to achieve pretty foolproof isolation, one pulls the plug out
I don't doubt that you will think of some 'exceptions which prove the rule' but, in general, leads with plugs on are usually sufficiently short that the person working on whatever it is connected to will be so much in control over what happens to the plug that 'the important part' probably is not all that importantYou missed the important part!
All 7 brands of 'white' 13A sockets currently listed on TLCs website (BG, Contactum, Crabtree, MK, "Pure Range", Telco & "Ultimate Range") claim to have DP switches. In the case of Crabtree, there appears to also be a SP alternative available, but for all the other makes, one seems to have no choice but to have DP.
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