just moved house and i notice the main fuse is 100a, the rcd type main switch is 60a. does this mean the fuse is too big if the main switch is rated so much less? will the electricity company change this or would i employ an electrcian?
main fuse size
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Its your equipment, so it is upto you to get an electrician to replace it, though two points
1) what sort of load do you have downstream of it? (big electric shower, cooker? lots of appliances... wylex 60A standard range boards on 100A fuses don't actually tend to cause problems because generally things arn't running at the limit limit, if it was popping a 60A fuse every week before it was upgraded to 100A that would be a problem for example. Its not really a good situation, but it doesn't mean its going to explode tommorow, it would be a pir code 2 IMHO unless it looked to be heavily loaded
2) Are you actually sure its a 100a fuse, just because the carrier says 100A on, doesn't perclude the possibility that the fuse link inside is smaller (there is no easy way to find out, just bear in mind, that it might not neccesalily be 100A)
1) what sort of load do you have downstream of it? (big electric shower, cooker? lots of appliances... wylex 60A standard range boards on 100A fuses don't actually tend to cause problems because generally things arn't running at the limit limit, if it was popping a 60A fuse every week before it was upgraded to 100A that would be a problem for example. Its not really a good situation, but it doesn't mean its going to explode tommorow, it would be a pir code 2 IMHO unless it looked to be heavily loaded
2) Are you actually sure its a 100a fuse, just because the carrier says 100A on, doesn't perclude the possibility that the fuse link inside is smaller (there is no easy way to find out, just bear in mind, that it might not neccesalily be 100A)
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Just to clarify, the main fuse is in the domain of your DNO.
You cannot change it. However, you can change the RCD.
You cannot change it. However, you can change the RCD.
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a 100A double pole...onto a 60A rcd main switch..16mm main tails ok...
crafty1289 said:well, the easy way is to cut the seals and pull it out. But this is neither safe nor legalAdam_151 said:and is not advisable to someone who doesn't know what they are doing.
No easy legal way then... what I meant
, may as well be the same, as its highly inadvisable to break this law if you don't know what you are doing I've got nothing against DIY electrics when done legally which is why I post here. Pulling main fuses is a different matter and really should be left to somebody who is competent with electrical work and knows exactly what they are doing!
I don't want to sound like i'm giving a lecture but pulling main fuses can easily end in
I don't want to sound like i'm giving a lecture but pulling main fuses can easily end in
so true, but i didn't condone it, merely highlighting that there was an "easy way" to check the rating of the main fuse when adam151 said there wasn'tPompeySparks said:I don't want to sound like i'm giving a lecture but pulling main fuses can easily end in
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