Cabling in commercial cooker hood

[binky]

I've been asked to fit a light in the cooker hood of a commercial kitchen. There's already a light fitted, plastic IP rated batten, with cable in conduit of some sort, run in the lower lip of the hood, but, they want a light in a higher position where the cabling will be more exposed to heat. What I can't quite decide is how much heat it would be exposed to, with the fans running the airflow must remove most of the heat? Has anyone else done a job like this, and what materials did you use. NB I'm kind of stuck with running inside the hood due to the existing cable entry point.

 

[UNG]

What sort of temperature are you anticipating at the new light position and the cable route, I would of thought tri-rated cable in a metal flexible conduit would be a workable option but without doing some checks when the kitchen is running it is difficult to assess what the ambient temperature may be where the light is being fitted

 

[binky]

What sort of temperature are you anticipating at the new light position and the cable route, I would of thought tri-rated cable in a metal flexible conduit would be a workable option but without doing some checks when the kitchen is running it is difficult to assess what the ambient temperature may be where the light is being fitted

I have done some reading on cooker hoods, temps are lower than expected at around 120C according to one site - I guess the airflow keeps temps down. The fact that there's a plastic IP rated light fitting in there already (bodged in) does give me some confidence that temps aren't that high. So metal flex conduit, a good old fashioned glass and metal bulkhead and some heat resistant cabling I think will work. I will also look at taking the cable run to the external surface of the canopy.

 

[Geoff1946]

I think keeping as much as possible outside the canopy is advisable if only for cleaning purposes.
Cleaning inside those things is a PIA at best and having flexible, or even rigid conduit in there is going to make it worse.

 

[peterspurs]

Recently done one the canopy had LED strip supplied in it everything done from above but this was new install

 

[Sidewinder]

Recently done one the canopy had LED strip supplied in it everything done from above but this was new install

Do you have/can you get the details for the LED strip, please?

 

[peterspurs]

I will see what I can do, I was back there last week typical

 

[Sidewinder]

I will see what I can do, I was back there last week typical

Shame, never mind, but if you can help, that would be awesome, thank you.