DANGER OF ELECTROCUSION
Oct 11th 2007, 9:37 pm
#64
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Joined: Nov 2006
Location: Heritage Valley in Edmonton
Posts: 894
Re: DANGER OF ELECTROCUSION
Yes it is 
The answer to your question is - It doesn't.
The plug is a 13A plug, that means the maximum fuse you can put in is 13A.
The fuse you actually put in, should be appropriate for the load. That is why you can buy 1A, 2A, 5A etc fuses.
When you buy electrical goods nowadays in the UK, by law, they have to have plugs fitted and the appropriate fuse installed.
Your TV would be 5A at max.
The 20A main breaker is selected to protect the cable, not your appliances.
NB: I'm an electrician by trade.
The answer to your question is - It doesn't.
The plug is a 13A plug, that means the maximum fuse you can put in is 13A.
The fuse you actually put in, should be appropriate for the load. That is why you can buy 1A, 2A, 5A etc fuses.
When you buy electrical goods nowadays in the UK, by law, they have to have plugs fitted and the appropriate fuse installed.
Your TV would be 5A at max.
The 20A main breaker is selected to protect the cable, not your appliances.
NB: I'm an electrician by trade.
Oct 11th 2007, 9:39 pm
#65
BE Enthusiast
Joined: Nov 2006
Location: Heritage Valley in Edmonton
Posts: 894
Re: DANGER OF ELECTROCUSION
Most UK fuse boxes have 30A fuses. The 2.5mm wire is not capable of handling 30A (as you correctly stated) - and the appliance flex certainly isn't. This is why you need a plug fuse.
This is a consequence of the UK ring main design. This is also why ring spurs are only allowed to have a double socket or 2 single sockets.
1. Electric Cooker (4mm cable)
2. Electric Shower (4mm cable)
3. Water Heater (4mm cable)
edit: It is against the electrical regulations to fit a protective device HIGHER than the cables capability. In other words illegal, in other words if anything happened and people died and they found you did it, you would do porridge.
Last edited by PeterF; Oct 11th 2007 at 9:44 pm.
Oct 11th 2007, 9:56 pm
#67
Forum Regular
Joined: Aug 2007
Location: uk manchester
Posts: 34
Re: DANGER OF ELECTROCUSION
Ive heard some bull s--t but this will totaly confuse even a canadian sparky
Oct 11th 2007, 10:03 pm
#69
Forum Regular
Joined: Aug 2007
Location: uk manchester
Posts: 34
Re: DANGER OF ELECTROCUSION
one minute you all are talking about sensible stuff, then you all go off on one talking about nail guns, falling of roofs, fixing bikes, then insulting the other sex.
Re: DANGER OF ELECTROCUSION
Oct 12th 2007, 2:16 am
#73
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Thread Starter
Joined: Oct 2007
Location: Calgary, Alberta
Posts: 610
Re: DANGER OF ELECTROCUSION
Sorry but here in Calgary we use wire nuts for voltages up to 347V this is the voltage commonly used for commercial lighting. the reason I feel they have not been adopted in the UK is the fact that circuitry runs unjointed from supply to final device, hence no intermediate joints requiring splicing. Also in the UK the cabling is constructed from stranded copper rather than solid core. Stranded cables are difficult to join in a wire nut which could also be a reason they are not used.
hope that shines a little light on things pardon the pun.
Oct 12th 2007, 3:01 am
#74
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Joined: Nov 2006
Location: Heritage Valley in Edmonton
Posts: 894
Re: DANGER OF ELECTROCUSION
iaink,
Sorry but here in Calgary we use wire nuts for voltages up to 347V this is the voltage commonly used for commercial lighting. the reason I feel they have not been adopted in the UK is the fact that circuitry runs unjointed from supply to final device, hence no intermediate joints requiring splicing. Also in the UK the cabling is constructed from stranded copper rather than solid core. Stranded cables are difficult to join in a wire nut which could also be a reason they are not used.
hope that shines a little light on things pardon the pun.
Sorry but here in Calgary we use wire nuts for voltages up to 347V this is the voltage commonly used for commercial lighting. the reason I feel they have not been adopted in the UK is the fact that circuitry runs unjointed from supply to final device, hence no intermediate joints requiring splicing. Also in the UK the cabling is constructed from stranded copper rather than solid core. Stranded cables are difficult to join in a wire nut which could also be a reason they are not used.
hope that shines a little light on things pardon the pun.
I may be embarrased by an earier post, but not this one.
Oct 12th 2007, 9:56 am
#75
Forum Regular
Joined: Aug 2007
Location: uk manchester
Posts: 34
Re: DANGER OF ELECTROCUSION
iaink,
Sorry but here in Calgary we use wire nuts for voltages up to 347V this is the voltage commonly used for commercial lighting. the reason I feel they have not been adopted in the UK is the fact that circuitry runs unjointed from supply to final device, hence no intermediate joints requiring splicing. Also in the UK the cabling is constructed from stranded copper rather than solid core. Stranded cables are difficult to join in a wire nut which could also be a reason they are not used.
hope that shines a little light on things pardon the pun.
Sorry but here in Calgary we use wire nuts for voltages up to 347V this is the voltage commonly used for commercial lighting. the reason I feel they have not been adopted in the UK is the fact that circuitry runs unjointed from supply to final device, hence no intermediate joints requiring splicing. Also in the UK the cabling is constructed from stranded copper rather than solid core. Stranded cables are difficult to join in a wire nut which could also be a reason they are not used.
hope that shines a little light on things pardon the pun.