watts and amps

[estie]

TV

Specifications : 220-240V AC, 50Hz
On back of TV, label says : 85W 11AK30 26.8kV

B&Q say a regular plug with a 13amp fuse would be fine. Is this correct ???

Please advise
Thanks.

 

[Lectrician]

With a 3 or 5amp fuse.....

 

[estie]

With a 3 or 5amp fuse.....

 

[TicklyT]

An 85 Watt load is less than half an Amp, so a 13 Amp fuse is way OTT. A 3 Amp fuse is usually more than sufficient.......

.....But.......

......Some equipment incorporates switch mode power supplies with high inrush current characteristics that tend to give a 3 Amp fuse a hard time when they are first switched on. If that proves to be a problem, try a 5 Amp fuse.

Bear in mind the plug fuse is there to protect the appliance lead, and the lead fitted to most TVs is only rated to carry up to about 5 Amps.

 

[estie]

I would still like to know what are the consequences of using a 13A fuse where only a 5A is recommended. Is it dangerous or ok ?

 

[Taylortwocities]

It is dangerous.
Per the above advice,

Bear in mind the plug fuse is there to protect the appliance lead, and the lead fitted to most TVs is only rated to carry up to about 5 Amps.

the TV's cable cannot carry 13amps. The cable would fry before the fuse blew if you had a short circuit on the cable or a serious fault with the appliance.

Why ask for advice and then question the replies?

Use a UK 3-pin plug that complies with BS1361 and put a 3 or 5amp fuse in it. End of.

 

[ban-all-sheds]

I would still like to know what are the consequences of using a 13A fuse where only a 5A is recommended. Is it dangerous or ok ?

Perfectly OK until something goes wrong and more current than the cable can safely carry, but less current than it takes to blow the fuse, flows.

In that situation the consequences could be the cable starting a fire which kills you all.

This article talks about circuit cables and fuse/breaker ratings, but the same principles apply to plug fuses and appliance flexes...

http://www.diynot.com/forums/viewtopic.php?p=81696#81696

 

[estie]

So tell me - why would B&Q say that 13A fuse for a TV correct ???

As a layperson I ask this question because I think most folk would just buy a new plug and not even check the fuse capacity.

With the different types of TV on the market now probably one size fuse fits all even more does not apply.

I suppose that's why most plugs are moulded ! To put an end to a dialogue like this !

 

[Spark123]

So tell me - why would B&Q say that 13A fuse for a TV correct ???

Because they haven't got a clue what they are talking about.

As a layperson I ask this question because I think most folk would just buy a new plug and not even check the fuse capacity.

Most folk would probably just by a TV in this country which is supplied with a UK BS1363 type plug.

 

[estie]

There are probably many people who are faced with re-plugging their electrical equipment after re-locating to different parts of the world, so my questions are valid, and professional answers are important and could be life-saving as has been intimated, where electrics are concerned.

 

[Spark123]

In a nutshell, Watts = V*I therefore just work out how many amps the appliance takes at 240v then select the next fuse size up.
Do they use PAL in the country which you bought the TV from?

 

[333rocky333]

What plug was initially on it.
Did that contain a fuse.

 

[JohnD]

There are probably many people who are faced with re-plugging their electrical equipment after re-locating to different parts of the world...

I have a feeling that not many globe-trotters carry their televisions with them

Those that do would be well advised to read the instruction booklet that came with the appliance, which (for appliance sold into the UK market) typically says something like:

"This appliance is supplied with a fitted three pin mains plug for your safety and convenience. A 5 amp fuse is fitted in this plug. If the fuse is replaced then the replacement fuse must be 5 amp rated...

...if in any doubt consult a qualified electrician"

shop assistants are generally not qualified electricans.

 

[estie]

The plug was a moulded one. I cut it off. Cannot get into it to see fuse.

Written on the plug on one side is : Noise Filter 25A 250V
On the other side : HPF 2x500(squiggle)H
25A 250V

The accompanying JVC booklet only says TV designed to operate on
220-240 V AC, 50 Hz


Back of TV : Same info plus : 85W 11AK30 26.8kV
BEAB Approved


I THINK that if any mention of fuse size had been noted in the accompanying literature then I would not have spent the last 2 hours trying to find out what fuse I need in the PLUG !!

AND . . . it was a B&Q ELECTRICAL chap that I asked advice from.

 

[JohnD]

What make and model of TV is it?