F.c.u

[coatesykid]

went to a job the other day and 6 amp rated cable had burnt out because customer replaced 3 amp fuse with a 13 amp fuse so when installing a F.C.U should we be installing a cable with a current rating grater than the 13 amp fuse a customer can put in the F.C.U

 

[dagrat]

No, you can't design against stupidity....

 

[snowhead]

The 6amp cable wouldn't have burnt out because of the 13amp fuse, it will have burnt out because of a higher load being put on it.
What was the cable originally connected to, and what was connected to it when it was fused at 13amp and burnt out?

 

[coatesykid]

The 6amp cable wouldn't have burnt out because of the 13amp fuse, it will have burnt out because of a higher load being put on it.
What was the cable originally connected to, and what was connected to it when it was fused at 13amp and burnt out?

it was connected to a light witch had a short circuit and blew the 3 amp fuse the customer then just replaced the fuse with a 13 amp and didn't get the fault rectified

 

[Paul.M]

Any fuse must be rated lower than the cable it is protecting or theres no point in putting a fuse on it.

 

[coatesykid]

yea but a customer may just put any fuse they have in the F.C.U and not the fuse intended for the circuit

 

[Paul.M]

To cover your back put a label on the fcu "max 5 amp". this may not stop anyone putting in a 13A fuse but at least you have done all you can to inform the customer not to change it like they have in the past, besides I assume the fault is fixed and they should'nt need to change it?

 

[snowhead]

The arguement over big cable into FCU would also have to apply to 13amp plugs.

 

[SYKRAPS]

It would have to apply to any scenario where protection can be altered, just not practical IMO and people should leave well alone if they don't know what they are doing...........

It's not rocket science that the fuse pops for a reason

 

[jaydee81]

told by nic inspector that 1.5 is the minimum for outgoing cable from fused spur said its in amendment one. does sort of make sense as 1.5 would carry 13 amps if the wrong size fuse was fitted

 

[SafetyFirst]

As Paul M suggests a sticker and a word in the ear to the client as well as a slap across the face ought to knock some sense in em! At least they didn't put a nail into the fuse cartridge i suppose!

 

[SYKRAPS]

told by nic inspector that 1.5 is the minimum for outgoing cable from fused spur said its in amendment one. does sort of make sense as 1.5 would carry 13 amps if the wrong size fuse was fitted

Boilers come pre flexed with .75 flex in many instances and you can put a fuse of your choice in pre flexed appliances with sealed plug tops

 

[HandySparks]

told by nic inspector that 1.5 is the minimum for outgoing cable from fused spur said its in amendment one. does sort of make sense as 1.5 would carry 13 amps if the wrong size fuse was fitted

I wouldn't believe everything an NIC inspector tells you. Did he have a section number from BS7671 to back up this info?

 

[shagbite]

Boilers come pre flexed with .75 flex in many instances and you can put a fuse of your choice in pre flexed appliances with sealed plug tops[/QUOTE


it's always worth checking the manufacturer's instructions for bits of kit that come pre-flexed. a lot of the time, there'll be a stipulation that voids the warranty if you change the flex and it's not of the exact type and size that they demand. so, if the .75mm is a few inches short of the fcu, and you replace it with the 1mm flex that you keep in the van, and a couple of months later the valve packs in, you're bu**ered - if they check!

 

[DieselShunter]

it's always worth checking the manufacturer's instructions for bits of kit that come pre-flexed. a lot of the time, there'll be a stipulation that voids the warranty if you change the flex and it's not of the exact type and size that they demand. so, if the .75mm is a few inches short of the fcu, and you replace it with the 1mm flex that you keep in the van, and a couple of months later the valve packs in, you're bu**ered - if they check!

The warranty has SFA to do with your legal rights. In the example you quote, if the boiler has failed due to a fault that it should reasonably not have suffered in that short space of time then the manufacturer is required to repair or replace it. If they suggest the valve failure is a result of replacing the supply flex, then put them to proof of that, or suggest to them that an expert's opinion be sought about their assertion.

It's exactly why manufacturer's offer warranties that offer you no benefits beyond your legal rights. So thay can bamboozle you into thinking you've "broken their terms" and then refuse to repair their crap.

And this is the very reason the law requires every "warranty" to have the words This warranty does not affect your statutory rights on it.

 

[GLENNSPARK]

this is a good example of turnipism.....

 

[Amp David]

went to a job the other day and 6 amp rated cable had burnt out because customer replaced 3 amp fuse with a 13 amp fuse so when installing a F.C.U should we be installing a cable with a current rating grater than the 13 amp fuse a customer can put in the F.C.U

They must of increased the load on this cable then surely. If its burnt out as you say, then it must of been pulling too much for a period of time, which a 3 amp fuse may not have held.

You see it with idiots swapping 6 amp mcbs for 10 amp one when the lighting circuit keeps tripping.

If someone can't be arsed replacing like for like after i've been a done the job then thats their problem. Can't spend all our days thinking about what some numpty might end up doing further on in time

 

[SYKRAPS]

The warranty has SFA to do with your legal rights. In the example you quote, if the boiler has failed due to a fault that it should reasonably not have suffered in that short space of time then the manufacturer is required to repair or replace it. If they suggest the valve failure is a result of replacing the supply flex, then put them to proof of that, or suggest to them that an expert's opinion be sought about their assertion.

It's exactly why manufacturer's offer warranties that offer you no benefits beyond your legal rights. So thay can bamboozle you into thinking you've "broken their terms" and then refuse to repair their crap.

And this is the very reason the law requires every "warranty" to have the words This warranty does not affect your statutory rights on it.

It was not my quote?????????????