Cable question, Vent-Axia extractor fan

dx90 · 19 Apr 2017

In the manual it says. The cross - sectional area of supply cord used should be ranged from 1 -1.5mm2. The extraction fan is suitable for connection to 220-240V 50Hz supply.

My question is, I have some 2 x 0.75mm that is rated at 6 Amps. Would this be OK to use?

I am plugging it into a socket on the wall. 5m run and the cable will be fixed. I am confused to why they say use 1 - 1.5mm on a small 13l/s fan.

Thanks

ban-all-sheds · 19 Apr 2017

dx90 said:
In the manual it says. The cross - sectional area of supply cord used should be ranged from 1 -1.5mm2. The extraction fan is suitable for connection to 220-240V 50Hz supply.

Does it say anything about the starting current?

My question is, I have some 2 x 0.75mm that is rated at 6 Amps. Would this be OK to use?

Are the terminals in the fan designed to accept small stranded conductors?

I am plugging it into a socket on the wall. 5m run and the cable will be fixed.

That is so, so horrible.

I am confused to why they say use 1 - 1.5mm on a small 13l/s fan.

Perhaps they expect it to be connected to the installation wiring, not plugged in.

stem · 19 Apr 2017

If your product draws less than 6A and subject to any derating factors, whilst it may seem OK from a current rating, maybe 1 -1.5mm2 is the size of cable that the fan terminals are designed to accommodate, so wire of a smaller csa may not be clamped adequately. Also, Vent-Axia may be taking into account mechanical considerations, such as strength, vibration etc., Generally if the manufacturer makes a recommendation it's usually best to consider it.

You could of course ask their technical helpline Tel: 0344 8560594. If you do, it would be good to hear back from you what they say.

dx90 · 19 Apr 2017

After what you have said, I'm now going to spur off the socket into a fused 3A switch and then run a 1.5mm twin and earth from there to the fan. Is this acceptable?

333rocky333 · 19 Apr 2017

dx90 said:
I have some 2 x 0.75mm

In my view 5 metres of cable should include an earth wire, regardless of whether the fan is Double Insulated
I agree with Ban it does seem a bit rough

EFLImpudence · 19 Apr 2017

dx90 said:
After what you have said, I'm now going to spur off the socket into a fused 3A switch and then run a 1.5mm twin and earth from there to the fan. Is this acceptable?

1mm² will be far more than adequate.

dx90 · 20 Apr 2017

I have some grey 1.5mm in the garage so I will use that and went out yesterday and bought some proper trunking to do the cable properly. I was trying to take the cheapest way out. I realise now that is not the best policy.

Thanks all for your advice.

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Cable question, Vent-Axia extractor fan

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