lighting fuse

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L Plate

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Hello ,

I just came from my cousins house ( 23:48 midnight ) to fixed their lights , i did not bother to find the faults , its too late for me .. so i go straight to the old fuse board , to change the fuse ( 5A ) , first try blew up , second try stll the same , this time I assume that one of the chandelier caused the trip , so again i just put tape on the switch so that the rest of the family will not use it , so far lighting is working.. my question is I'm thinking to put the 13A but really not sure .. can anyone explain please , of what happen if i will use 13A on the lighting circuit ..

In the fuse board there is 4 ceramic brown fuse holder ,but one is not in use , 2x30A , 13A ( for the sockets ) and 5A (for the lighting ). my question on this side is , the other 30A that is not in use , is it possible that this is for the water pump motor supply? , years ago my cousin told me that their hot water pressure is very slow and the radiator on the leaving room were not working .. tonight when i opened the fuse board I found one of the 30A was unplugged .

to make it clear to all .. the fuse in fuse board were rated 2x30A/13A and 5A but one of the 30A was unplugged ..

any explanation please .. thank you

 
Using a 13 amp on lighting cable could mean that the wiring becomes the fuse if there is a fault.

Unlikely, but still not recommended!

 
The unused 30 amp is more likely to be an old heated shower supply...

You should probably have a read of some info about heating and plumbing systems if possible, as I can't make much sense of what you have written about the water systems.

 
Using a 13 amp on lighting cable could mean that the wiring becomes the fuse if there is a fault.Unlikely, but still not recommended!
thank you , i was bit confused because in college we have been taught more on RCD ..

thanks again

 
The unused 30 amp is more likely to be an old heated shower supply...You should probably have a read of some info about heating and plumbing systems if possible, as I can't make much sense of what you have written about the water systems.
I'm not so sure if it is an old shower supply , because I knew the house since 8 years ago that they don't have electric shower..but maybe it was 15 or 50 years ago .. headbangheadbang >> I'm confused LOL , but I am really keen to know about it , for additional knowledge ..

 
thank you , i was bit confused because in college we have been taught more on RCD .. thanks again
I don't know, to be totally honest. I am learning myself! It still doesn't sound like good practice even with an RCD.

Do you know what system their water heating/central heating is? For instance do they have an immersion tank or does the boiler fire whenever you run the hot tap?

 
I'm not so sure if it is an old shower supply , because I knew the house since 8 years ago that they don't have electric shower..it comes from the boiler ..
Do they have an electric cooker?

 
Do they have an electric cooker?
the water system as far as I know , they have about 3Feet long tank and they have to turn the switch on to have a hot water .. at the moment they are using gas for their oven..

 
the water system as far as I know , they have about 3Feet long tank and they have to turn the switch on to have a hot water .. at the moment they are using gas for their oven..
An upright tank? With an immersion that they have to switch on?

Could the extra 30amp be for a cooker radial that they are not using?

 
An upright tank? With an immersion that they have to switch on?Could the extra 30amp be for a cooker radial that they are not using?
Indeed , its an upright tank and they switch it on first before they use the shower , I am not so sure about the cooker, again as I've said maybe it was years and years ago ,, the problem that i see in the fuse board is that , there is no label at all , or some notes of whats the unplugged fuse for >> ( cowboy sparky )

 
Only you can find what the mysterious 30A fuse is for , its impossible for us to tell. Is it a water pump ? How are we to know ?

As for the lighting , you have indicated that a chandelier is at fault and switch is taped over. I don't know why you wish to introduce a 13A fuse . Return in daylight, repair the short on the chandelier ,remove tape and switch on.

You will be hailed as a hero. Leave lighting on the 6A fuse.

 
Indeed , its an upright tank and they switch it on first before they use the shower
In that case hot water pressure will be reliant on a cold water tank in the loft... unless of course it's a pressurised immersion tank. Less likely though.

We need more info about the water system generally, otherwise we are merely speculating....

As regards the lighting fault, Mr Evans has nicely summed it up above!

 
Only you can find what the mysterious 30A fuse is for , its impossible for us to tell. Is it a water pump ? How are we to know ? As for the lighting , you have indicated that a chandelier is at fault and switch is taped over. I don't know why you wish to introduce a 13A fuse . Return in daylight, repair the short on the chandelier ,remove tape and switch on.

You will be hailed as a hero. Leave lighting on the 6A fuse.
:innocent , after all I did not use the 13A at all , i have the second thought that it is not safe , but i cant explain , for some reason why i want to use is because i can't find any 5A in the house , tesco was open but they don't have stock at all , But surely I will be back tomorrow and fixed the chandelier and try to find out the mysterious unplugged 30A fuse..

thank you for your idea sir ..

 
In that case hot water pressure will be reliant on a cold water tank in the loft... unless of course it's a pressurised immersion tank. Less likely though.We need more info about the water system generally, otherwise we are merely speculating....

As regards the lighting fault, Mr Evans has nicely summed it up above!
thank you sir for your time...

I will update tomorrow , i will take picture regarding the water system and post it here.

good morning ...

 
:innocent , after all I did not use the 13A at all , i have the second thought that it is not safe , but i cant explain , for some reason why i want to use is because i can't find any 5A in the house , tesco was open but they don't have stock at all ,
Are they cartridge fuses in holders? If so you will need to go to a factor to get them.

Better still, replace with a mini-trip mcb.

 
thank you sir for your time... I will update tomorrow , i will take picture regarding the water system and post it here.

good morning ...
You're welcome, look forward to the pics.

We all like pics!

:)

:good night:

 
Are they cartridge fuses in holders? If so you will need to go to a factor to get them.Better still, replace with a mini-trip mcb.
the 30A and the 13A in the switch board looks the same ( cartridge ) , but the 5A is a plug top fuse ...

 
the 30A and the 13A in the switch board looks the same ( cartridge ) , but the 5A is a plug top fuse ...
?

Surely the 5A is a BS1361 cartridge fuse and the 13A would be a BS1362 (plug top) fuse?

5A is not a standard rating of BS1362 anyway (only 3A and 13A are) although they are available along with other non-standard ratings.

 
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