IIUC it was done because the neutral supply line couldnt be counted on to n= ot be live. It would have made more sense, back when it was done, to use 2 = different fuse values for each L/N pair, eg 15A and 20A, to help ensure tha= t under normal polarity conditions it was the live that fused.
NT
He did.
Keep up sunshine.
..and then the fuse breaks.
Pay attention. Then you use fuses other than 3 or 13A
Which is wrong.
Which is right. Good you are catching on.
Good you are catching on.
Now we're talking about what you'r told to do by the regulations or managme= nt that's in charge of your job, it is that simple.
Years ago we were told to check all plugs and replace any fuses that were w= rong with the correct fuse whether it was 3, 5 10 13 amp. Now wee not suppoosed to replace fuses where you need to open the plug up a= nd if you do so you need teh aplince PAT'd before it cane be re-used .
So NO common sense is NOT the correct method.
I've already passed you.
Only if the fuse is of a lower rating than the cable. you might fidn a 3 amp cable gets hot before the 13 amp fuse blows.
Which are availble.
No it isn;t .
But you can't buy such fuses for the standard 3 pin plugs.
Yep I know what I'm doing you clearly don;t if yuo'd put a 5 amp fuse in a 1kw fire.
opening the plug and checking fusing and terminals is part of a PAT test.
Why you shoud pout in the correct fuse.
IT IS dope! The fuse should never be great than the cable. If you have surge get an anti-surge fuse.
I know you do. You deliberately make electrical systems unsafe. You are some sort of pychopath.
This man is mad.
But surely this can't be done in most cases?
Please give a supplier of such fuses that conform to the BS for 13 amp plug fuses?
be sensible, if it's a moulded on plug, you can't do that.
This man needs to eff off.
Plantpot Fuses R Us ?
Once used a Farnell 60v 50A PSU that was wired to a normal 13A plugtop. On startup after being in cold storage you needed a small handful of 13A fuses that lasted about a few mains cycles so you could get enough charge in the smoothing caps to reduce the inrush. Once you'd done that it worked ok. It wasn't a case of reforming the caps as the were replaced, ideally it needed two plugs to the ring :)
And the 32mA fuses Drivel recommended
NT
Let me help you with a translation for that. What dribble was trying to say was:
The fuse should never have a greater rating than the fault withstand current of the cable. If you have a high inrush surge to deal with, then fit a 13A fuse since there is no such thing as a time delay BS1362 fuse, and a 13A will give adequate fault protection anyway while withstanding high inrush.
You're welcome.
He did? Wow.
< snip drivel >
Yes exactly you put the correct fuse in not the 'calculated' value.
yes I know the plug fuse is to protect the cable.
You can't buy anti-surge fuses for standard 3 pin plugs.
How would putting the correct fuse in make electrical systems unsafe ? (unless the equipment was faulty or failed anyrequired test)
yes that's the point when PAT'ing equipment you test the equipemnt and any = leads that power it. With the IEC leads it can be cheaper and more efficine= t to buy a new lead rather than pay =A31.49p to have one tested. Unfortunalty some of our older equipment has dedicated leads so that's not = an option.
=20
Above what the Drivel ?
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