Which Amp Fuse ,,confused !!

[kloofnek]

I have just bought a 99l chest freezer to put on my garage.I will have to use an extension lead to it from the mains plug,On looking at them,most have 10am fuse(which I have never heard of before),now I assumed the freezer plug itself will have a 13amp fuse (cannot look as it has not been delivered yet)but reading further about the subject find that freezers can have a 3amp fuse ???
I am confused..if the freezer has a 13amp,surely the extension lead must have same.
Can someone please recommend one to me..I have looked on the Wilko website and found several but cannot work out which to buy,
Thank you

[hazydaisy]

Why not ask the manufacturer?

[kloofnek]

Think will have to,
Thank you all for your answers,I am off to my bed,Nite Nite all

[Old_Geezer]

IMO the extension probably uses 13 amp cable so putting in a 13 amp fuse isn't likely to be an issue. One has to allow for surge currents when the freezer motor turns on but I suspect 10 amp fuses would cope. If it blows, use a 13 amp replacement. (Or get a different extension lead)

[waterboatman]

I've never seen a 10 amp fuse. The standard is 13 amp. However, appliances vary. Take guidance from the guide book which should come with the freezer.

[bhg481]

The bottom line is; so long as the fuse in the extension lead is HIGHER than the SUM of the fuses in any appliances plugged into it, you are safe. Any 3-way adapter you buy will have its own fuse (probably 13 amp) and the same rules apply.
If you have two sockets in the garage it would be a good idea to plug the new freezer into one (via the extension lead) and the adapter in the other, with the light and other freezer into that. That way, if the fuse in the adapter OR the one in the extension lead blows, you will only lose one freezer. There is no reason the fuse should blow, other than the fact that they just do sometimes, but it does happen.

[Ryzen]

Just to throw in a bit more confusion..a BS 1361 fuse has a fusing factor of 1.6/1.9...so a 10a will carry up to 19a all day long.
To sum up...leave the 10a in the extn...it will be fine :-)

[kloofnek]

Thank you for All your advice.Have taken it all on board, will check with manual when freezer arrives.
Have a nice evening one and all.

[TonyV]

Plus Kloo should have a plate on appliance stating how many amps it takes. With connecting extension leads together you will have volt drop. I would buy a length of cable and connect plug and outlet to each end so you have one direct link. Just buy 13 amp rated cable.

[SparklyKid]

Simple rule. All appliances have their wattage rating on a label, usually at the back.
Divide the wattage by the voltage (240) and the answer is the fuse required.

For example, three bar fire rated at 3KW (3000 watts)

Divide 3000 by 240 (volts) answer just over 12, so 13 amp fuse.

Works for every appliance. 750 watt microwave oven, divided by volts 240, 3 amp fuse, I would go to a 5 amp.

[SparklyKid]

If you have a small TV with a 13 amp fuse and the telly develops a fault, the TV will blow up before a 13 amp fuse.

[TonyV]

Sparkly good old ohms law

[TonyV]

Try this cable Kloo with plug and socket outlet attached

https://www.toolstation.com/weather-resistant-rubber-pond-flex-cable-3183p/p17796

[SparklyKid]

Cheers Tony,lol.

[The Builder]

I think you've been given the right answers already, kloof.

I would guess that the reason why the extension lead has a 10A fuse is this:
Ordinary double sockets can have two extension leads plugged into them. One in each socket.
Despite usually being on a 32A ring circuit, no double socket should ever have to carry more than 20A. That is the design rating.
It stands to reason that two 13A extension leads can (theoretically) sustain a load of 2 x 13 = 26A............. which is more than the socket is designed to handle.

[kloofnek]

Thank you much detail.you are a clever lot out there!!Have a good day