Walk in coolers

[SPG]

Do all fixtures need to be sealed inside a walk in coolers? Since the humidity inside is constantly regulated there really is no condensation worries here. Where in the code book might I find some guidance on this matter.

 

[iwire]

Do all fixtures need to be sealed inside a walk in coolers? Since the humidity inside is constantly regulated there really is no condensation worries here. Where in the code book might I find some guidance on this matter.

The only thing that needs to be sealed, from both a code and practical perspective is any raceway that passes from inside to outside the cooler.

300.7 Raceways Exposed to Different Temperatures.
(A) Sealing. Where portions of a raceway or sleeve are
known to be subjected to different temperatures, and where
condensation is known to be a problem, as in cold storage
areas of buildings or where passing from the interior to the
exterior of a building, the raceway or sleeve shall be filled
with an approved material to prevent the circulation of
warm air to a colder section of the raceway or sleeve. An
explosionproof seal shall not be required for this purpose.

 

[ActionDave]

I agree with iwire. It's very dry inside those walk-ins.

 

[jeremysterling]

Weatherproof enclosures in WIC help flourescent lamps warm up to their optimum brightness.

If food preparation is involved, some lamp shielding may be required by a health code, but I'm just guessing.

 

[norcal]

Do not omit sealing the raceways, do it while wiring the walk in or you will be back to do it later when the fixtures fill with water.

 

[iwire]

Do not omit sealing the raceways, do it while wiring the walk in or you will be back to do it later when the fixtures fill with water.

I agree 100%