Potential main incoming fuse issue

[Phillip100]

Hello, I am new to the forum and I hope someone could help me with the following please

I have a family member who lives at a very large property with an indoor swimming pool and hot tub. This however uses a lot of power

its an old house so the original main incoming board is still intact. It has a 80 amp fuse protecting the main 100amp single phase. (Personally a three phase would be better)

When the heaters are on for the pool, and other household utilities, electric oven etc the total usage can peak to around 50-60 Amps. But it varies from 20-60amps mostly

the 80amp fuse can be nicely warm to the touch with all the power running through it. However, sometimes the 80 amp fuse can be really hot now and again for no reason for a couple of days! Very hot to touch and slightly smelly. (This is with even 25/30amp usage going through it) but with 55-60 amps most of the time is nicely warm!

what is causing this heat spike as such that's making the main 80amp fuse hot?

95% of the time it's fine but he has only started to have this issue

any info/feedback will be appreciated.

Thanks phil

 

[Darkwood]

Welcome to the forum

 

[telectrix]

possibly the fuse has a high resistance to it's carrier contacts.

 

[Phillip100]

In English sorry (lol)

thanks for your input

 

[davesparks]

Phone your electricity supplier as a matter of urgency and get them to attend to fix the problem before it starts a fire


Sent from my iPad using Tapatalk

 

[Phillip100]

Telectrix- it is an old 80 amp fuse. Shall I swap it for a new one?

 

[Flanders]

You could have a loose connection which will only get worse due to the heat has dave says best give the supplier a ring they will comd and chdck it for you

 

[Phillip100]

You could have a loose connection which will only get worse due to the heat has dave says best give the supplier a ring they will comd and chdck it for you

Where would the loose connection likely be?

 

[Sintra]

Where would the loose connection likely be?

I don't think anyone on here will advise you on how to dabble with a live service fuse. Take the advise already given and contact the DNO to come and investigate. Thread closed.