Bedroom Ceiling Fan - Isolation?

[gembrain]

Hi,

If I'm fitting a ceiling fan in the bedroom off the lighting circuit then do I need any more isolation than switching off the lighting circuit at the fuse box?

One set of instructions telling me I need a double pole isolator which I could understand in a bathroom or commercial but seems OTT in a domestic bedroom.

Thanks for any help!

 

[telectrix]

in line fuse holders are 10 a penny .

 

[Engineer54]

In most cases these fans are replacements for the center light so it would have a switched live from the door as isolation and a means of turning it on and off unless like mine its on a remote, but as someone has already said, follow the instruction and if is says its needs a 3amp fuse and a isolator then it will have to be done in case something goes wrong later on then you will be covered, BTW a fuse can be inline inside with the cable connections if you don't want to see it.

How many more times??? BS1362 fuse are designed to protect cables/flex, NOT the accessories that are connected to them!! So if a manufacturer states a 3A fuse protection is required, then it is bloody well up to them to supply that protection, not the installer!!

Since when has a replacement fan/light fixture ever required a separate fused isolator for gods sake!! If you want to provide an in-line fuse, that's up to you, i wouldn't and haven't in my home, and i have such fittings in every room in the house!!

 

[Engineer54]

Northern extractor/ventilation device...

Jesus, about time that frame was protected, or it won't be too long before you'll have one very big source of ventilation!! lol!!

 

[Engineer54]

in line fuse holders are 10 a penny .

May be me, but i haven't seen many if any, in-line fuse holders rated for 230/240 volts. Mostly, the in-line fuse holders i generally see are for ELV type voltages??

 

[44ALLAN]

Bs 1362 is the fuse............1363 is the plug methinks !

 

[Engineer54]

Bs 1362 is the fuse............1363 is the plug methinks !

Thanks, ....must have hit the wrong key!! lol!!

 

[HandySparks]

May be me, but i haven't seen many if any, in-line fuse holders rated for 230/240 volts. Mostly, the in-line fuse holders i generally see are for ELV type voltages??

Exactly my point. I found this one rated at 250V and taking a 5x20 fuse, although described as 'automotive': Buy Inline Fuse Holders Standard in-line fuse holder,5x20mm Bulgin FX0380 online from RS for next day delivery.
Just occasionally, it would be useful to have an inline holder, suitably rated, that would take a BS1362 fuse.

 

[cobrauk]

whats wrong with getting the fuse carrier installed in light fittings, L/N/E all in one connection ?

 

[Engineer54]

whats wrong with getting the fuse carrier installed in light fittings, L/N/E all in one connection ?

Nothing, but if it's actually needed (which i very much doubt) that's exactly what the manufacturer should be supplying in the first place, not the installer.

 

[Richard Burns]

Exactly my point. I found this one rated at 250V and taking a 5x20 fuse, although described as 'automotive': Buy Inline Fuse Holders Standard in-line fuse holder,5x20mm Bulgin FX0380 online from RS for next day delivery.
Just occasionally, it would be useful to have an inline holder, suitably rated, that would take a BS1362 fuse.

Yes but the thing I always find is this (as shown on your link's product information):
Note

This maximum voltage applies when used within equipment. Otherwise the maximum voltage is limited to 50Vac/dc


However putting it in an accessory is normally easy.

Regarding the OP fusing / isolation does seem pointless in this case but manufacturers instructions rule supreme :sad: no matter how stupid.

 

[Engineer54]

Regarding the OP fusing / isolation does seem pointless in this case but manufacturers instructions rule supreme :sad: no matter how stupid.

Do they?? Not from some of the instructions that i have seen!! Some would be almost impossible to comply with, as far too many of them have just been interpreted into English and referring to European standards/specifications. As far as the OP's instance is concerned, there is no-way i would even think about installing a separate isolator, nor would i be providing a fuse, ...either in-line or otherwise!! Totally barmy....

 

[Marvo]

I also don't see why manufacturers instructions would trump the opinion of an experienced electrician. Manufacturers instructions are often sloppily written at best and sometimes downright incorrect or illegal. Another problem is contacting the actual 'manufacturer' for clarification or tech support, a lot of the time nowadays the products are branded and sold under multiple different names so would the branded distributor be considered the manufacturer even if they didn't actually make, design or test the product?

 

[Silly Sausage]

Some 'Instructions' have been translated by computer, you'd get more sense from a Buckfast alcy off your average Scottish street.

 

[Richard Burns]

Do they?? Not from some of the instructions that i have seen!! Some would be almost impossible to comply with, as far too many of them have just been interpreted into English and referring to European standards/specifications. As far as the OP's instance is concerned, there is no-way i would even think about installing a separate isolator, nor would i be providing a fuse, ...either in-line or otherwise!! Totally barmy....

I also don't see why manufacturers instructions would trump the opinion of an experienced electrician. Manufacturers instructions are often sloppily written at best and sometimes downright incorrect or illegal. Another problem is contacting the actual 'manufacturer' for clarification or tech support, a lot of the time nowadays the products are branded and sold under multiple different names so would the branded distributor be considered the manufacturer even if they didn't actually make, design or test the product?

Some 'Instructions' have been translated by computer, you'd get more sense from a Buckfast alcy off your average Scottish street.

Just the point I was failing to make!
134.1.1 Electrical Equipment shall be installed in accordance with the instructions provided by the manufacturer of the equipment.
I feel is a very poor statement that should not have been included and I feel that
510.3 Every item of equipment shall be selected and erected so as to allow compliance with the regulations in this chapter and the relevant regulations in other parts of BS7671 and shall take account of manufacturers instructions.
Is a much better statement and allows a competent person to install correctly as in many cases the two options are mutually incompatible and competence should take priority.

 

[Guest55]

i'd love to see the technical data that shows how the recommended 3a bs1362 fuse has a chance in hell of operating before a 6a mcb.....
it wont , not in a million years lol.


hyperthetical scenario..........

manufacturers instructions are in direct conflict with bs7671 ,
which do you install to ?