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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#41
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RCD or not to RCD ...
In article ,
tony sayer writes: Back to the cooker circuit protection business, it appears that some cooker outlet plates have a 13 amp outlet on them which isn't or won't normally be protected into which you could plug a duff appliance etc with attendant shock risk?..... Yes, I never use them because the protection I choose for a cooker is not the same as the protection I choose for a kitchen worktop socket outlet. -- Andrew Gabriel |
#42
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RCD or not to RCD ...
On Tue, 10 Aug 2004 22:25:25 +0100, tony sayer
strung together this: Back to the cooker circuit protection business, it appears that some cooker outlet plates have a 13 amp outlet on them which isn't or won't normally be protected into which you could plug a duff appliance etc with attendant shock risk?..... According to the regulations you don't need RCD protection for the socket, only RCD protection if someone is likely to plug something into it that is used outdoors. So if it has a socket, it doesn't neccesarily need an RCD behind it. -- SJW A.C.S. Ltd |
#43
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RCD or not to RCD ...
In article , Lurch
writes On Tue, 10 Aug 2004 22:25:25 +0100, tony sayer strung together this: Back to the cooker circuit protection business, it appears that some cooker outlet plates have a 13 amp outlet on them which isn't or won't normally be protected into which you could plug a duff appliance etc with attendant shock risk?..... According to the regulations you don't need RCD protection for the socket, only RCD protection if someone is likely to plug something into it that is used outdoors. So if it has a socket, it doesn't neccesarily need an RCD behind it. Well that's a cock arsed way to look at it then. So all the other 13 amp sockets are only in need of RCD protection if what's plugged into them are used outdoors too?... -- Tony Sayer |
#44
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RCD or not to RCD ...
On Wed, 11 Aug 2004 21:25:03 +0100, tony sayer
strung together this: So all the other 13 amp sockets are only in need of RCD protection if what's plugged into them are used outdoors too?... Yes. -- SJW A.C.S. Ltd |
#45
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RCD or not to RCD ...
In article ,
Lurch writes: On Tue, 10 Aug 2004 22:25:25 +0100, tony sayer strung together this: Back to the cooker circuit protection business, it appears that some cooker outlet plates have a 13 amp outlet on them which isn't or won't normally be protected into which you could plug a duff appliance etc with attendant shock risk?..... According to the regulations you don't need RCD protection for the socket, only RCD protection if someone is likely to plug something into it that is used outdoors. So if it has a socket, it doesn't neccesarily need an RCD behind it. Some of us do installations which are better than the minimum standards required by the regulations. -- Andrew Gabriel |
#46
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RCD or not to RCD ...
tony sayer wrote:
In article , Lurch writes On Tue, 10 Aug 2004 22:25:25 +0100, tony sayer strung together this: Back to the cooker circuit protection business, it appears that some cooker outlet plates have a 13 amp outlet on them which isn't or won't normally be protected into which you could plug a duff appliance etc with attendant shock risk?..... According to the regulations you don't need RCD protection for the socket, only RCD protection if someone is likely to plug something into it that is used outdoors. So if it has a socket, it doesn't neccesarily need an RCD behind it. Well that's a cock arsed way to look at it then. So all the other 13 amp sockets are only in need of RCD protection if what's plugged into them are used outdoors too?... It's what the regulations say. In practice it's usually interpreted as meaning that an upstairs ring circuit doesn't have to have RCD protection (accordong to the regulations) but that a circuit supplying *any* downstairs sockets should have RCD protection. -- Chris Green |
#47
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RCD or not to RCD ...
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#48
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RCD or not to RCD ...
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#49
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RCD or not to RCD ...
In article , Andrew Gabriel
writes In article , Lurch writes: On Tue, 10 Aug 2004 22:25:25 +0100, tony sayer strung together this: Back to the cooker circuit protection business, it appears that some cooker outlet plates have a 13 amp outlet on them which isn't or won't normally be protected into which you could plug a duff appliance etc with attendant shock risk?..... According to the regulations you don't need RCD protection for the socket, only RCD protection if someone is likely to plug something into it that is used outdoors. So if it has a socket, it doesn't neccesarily need an RCD behind it. Some of us do installations which are better than the minimum standards required by the regulations. Well thanks be for that!..... -- Tony Sayer |
#52
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RCD or not to RCD ...
In article , Mike Clarke
writes In article , wrote: tony sayer wrote: [Snip] Well that's a cock arsed way to look at it then. So all the other 13 amp sockets are only in need of RCD protection if what's plugged into them are used outdoors too?... It's what the regulations say. In practice it's usually interpreted as meaning that an upstairs ring circuit doesn't have to have RCD protection (accordong to the regulations) but that a circuit supplying *any* downstairs sockets should have RCD protection. So someone plugs a (faulty?) power sander into a bedroom socket, puts it beside the open window, goes outside and climbs the aluminium ladder to sand the window frame before painting it .... But then, even with a RCD, perhaps the initial jolt would throw them off the ladder anyway so I suppose it's a lose - lose situation. Well that's more or less what happened to me some years ago, except it was a metal cased drill. I doubt the 30 odd mill trip current would be noticed. Well I didn't notice when working on the immersion heater somewhile ago... -- Tony Sayer |
#53
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RCD or not to RCD ...
In message ,
"IMM" wrote: "Owain" wrote in message ... [...] Lighting circuits are low current and use generously over-specified cables in most cases, compared to cooker and immersion circuits which may be operating at close to maximum capacity for extended periods of time. If anything, they're more likely to cause a fire hazard through poor connections overheating that a lighting circuit. With modern downlighters and other types of lighting, the current drawn can be quite substantial. You're coming at it from the wrong direction though. Owain was trying (IIUC) to point out that you would often have (for example) an electric cooker on the end of some 6mm2 cable protected at 32A, drawing close to that current and rated under installation method 6 at just 32A. This is what he means by having circuits "operating at close to maximum capacity for extended periods of time." Compare this with normal lighting circuits where 1mm2 cable is rated to 11.5A under the same circumstances but is usually protected at just 6A. Occasionally you will see a 10A lighting circuit, but more often than not this will be wired in 1.5mm2 cable rated to 14.5A. There is, to use one particular phrase, much more "headroom" on the lighting circuit. Hwyl! M. -- Martin Angove: http://www.tridwr.demon.co.uk/ Two free issues: http://www.livtech.co.uk/ Living With Technology .... Oh no, not another learning experience! |
#54
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RCD or not to RCD ...
On Thu, 12 Aug 2004 15:19:48 +0100, Mike Clarke
strung together this: So someone plugs a (faulty?) power sander into a bedroom socket, puts it beside the open window, goes outside and climbs the aluminium ladder to sand the window frame before painting it .... The term is "reasonably expected to supply portable equipment outdoors". The keyword is "reasonably", if it were "possible" instead then yes, every socket iin the house would require RCD protection. -- SJW A.C.S. Ltd |