Shower pump plugged into lighting circuit

[gsf600y]

OK, thanks to everyone who's contributed
Learnt lots fitting this pump

The pump get very hot, 90 degrees, so that's a ceramic floor tile under it, which I thought was better than wood or carpet.

noted regarding the cable, and fixing properly.

 

[EFLImpudence]

The pump get very hot, 90 degrees, so that's a ceramic floor tile under it, which I thought was better than wood or carpet.

I was thinking about noise - carpet under ceramic tile?

 

[stillp]

Am I the only person who thinks 90° is too hot?

 

[JohnW2]

Am I the only person who thinks 90° is too hot?

If we're talking °C, then you are undoubtedly not the only person. If it's °F, then that probably wouldn't be unreasonable, given that H & C water are flowing through it.

Kind Regards, John

 

[gsf600y]

It's 80-90°c, not F.

I noticed it after installing, and checking for leaks whilst the pump was running. Put my hand on the casing, the middle section, it noticed to was too hot to touch.

I emailed the pump maker. they replied with:

Thanks for contacting Salamander Pumps

All pumps get hot in operation approx 80-90°
We do not suggest touching the pump due to the temperature of the casing in operation.

All of the pumps have thermal protection so if the temperature got too high the pump would shut itself down.

So, yeah, it's hot alright.
Never did feel the old when when it was operating. Maybe they all do get that hot.

 

[winston1]

If you're asking whether is is likely to be "1mm² or 1.5mm²" cable, then the answer is yes. If you're asking which of those it is, it's hard to tell from the picture - but it doesn't matter, since 1mm² would be more than adequate for your purpose.

Yes it does matter. The regs say that 1mm can only be used for lighting so it has to be 1.5mm. That would also apply to the whole circuit as it is no longer a lighting circuit.

 

[stillp]

The regs say that 1mm can only be used for lighting so it has to be 1.5mm. That would also apply to the whole circuit as it is no longer a lighting circuit.

How are you defining "lighting circuit"?

 

[winston1]

How are you defining "lighting circuit"?

A circuit which supplies lights (only).

 

[Taylortwocities]

How about if you change the "upstairs lighting" label on the CU to say something like:

6amp radial circuit

 

[winston1]

How about if you change the "upstairs lighting" label on the CU to say something like:

6amp radial circuit

Change the label however you like it still has to be a minimum of 1.5mm if it is not supplying lights only.

 

[stillp]

A circuit which supplies lights (only).

No fans?

 

[Taylortwocities]

Where's the reg for that then?

Are you saying I cannot run a length of 1mm² cable, with a 6A MCB to power a set of smoke alarms?

You crazy person.

 

[securespark]

"Power" is not defined in 7671.

 

[securespark]

Are you saying I cannot run a length of 1mm² cable, with a 6A MCB to power a set of smoke alarms?

Smokes, fans, doorbell transformers, clocks, these all run off lighting circuits. Are they disallowed as well?

 

[EFLImpudence]

Change the label however you like it still has to be a minimum of 1.5mm if it is not supplying lights only.

Unless you use flexible cables.