Metal halide Site lighting

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Re: Metal halide Site lighting

Thanks, these fixtures are supplied with a medium base socket, so I guess I am SOL.
 
Re: Metal halide Site lighting

bwyllie,

Other than dwelling units, you are fine.You can always add inline fuses at each fixture for additional protection.

frank
 
Re: Metal halide Site lighting

Originally posted by physis:
What about 210.21(A)?
Click to expand...
What about it? :)

A typical site lighting circuit in this area will be protected by a 50 amp 3 pole 480 volt breaker. There will be fuses at each pole base sized for just the ballasts on that pole.
 
Re: Metal halide Site lighting

Yes indeed, HID, I don't do much commercial and I confess, I get thrown by the stupid base types used in the book. Have any of the base references changed in the 2005?

Edit: bwyllie's talking about a medium base?

[ July 05, 2005, 07:04 PM: Message edited by: physis ]
 
Re: Metal halide Site lighting

the cut sheet shows these fixtures as having a medium base socket, so I guess I cannot install a 30A c/b. I could install a 30A circuit breaker and fuses at the poles as recommended.
 
Re: Metal halide Site lighting

Physis,

210.21(A) last sentence ,not less than 750 watts if of any other type.

That should clear it up.

frank
 
Re: Metal halide Site lighting

Yeah Frank, Not that I haven't read the section enough times in the past, but I noticed it again when I went over it a second time a little while ago.
 
Re: Metal halide Site lighting

I'm sorry Frank. When I mentioned 210.21(A) I was thinking that you meant by adding a fuse you can effectively lower the branch circuit rating.
 
Re: Metal halide Site lighting

What are these bases? The heavy duty I believe is a mogal. That's easy enough, if that's what it is. It's good that there's no description of what this means. And I never see the term in the industry, I mean outside of home depot, where Heavy Duty is next to the "Deluxe" products.

But admittedly there's a lot of things I'm not aware of in the industry.

I don't know, is this a typo? admedium? What in the world is admedium? Even if it's "medium" What is this, fast food? Because if it is I think it's a large now? Or a small?

:confused:

Can't CMP 2 be clear about something?, anything, I'm not that picky.
 
Re: Metal halide Site lighting

Sam A medium base lamp holder that has a 660 watt rating is a heavy duty lamp holder. That is what it is saying. has nothing to do with being a Mogul base. in fact a Mogul base lamp holder has to be listed for 750 watts before it is considered heavy duty.

Yes it is a typo.
 
Re: Metal halide Site lighting

Thank you for that Wayne. Somehow I think I can understand this section now. :cool:
 
Re: Metal halide Site lighting

yes it is a medium base. Am I to understand that a medium base socket is a heavy duty lampholder and I am allowed to use a 30A circuit breaker?
 
Re: Metal halide Site lighting

If it's a medium base and rated at least 660 watts you can use a 30 amp circuit.

I don't know how CMP 2 does it. For the longest time I thought this section said something else.
 
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