Disconnect For Lighting

MSSI

Does anyone make a fused disconnecting plug setup for the florescent fixture "disconnect" requirement?

Celtic

Is the requirement:
A) That there is a disco
B) That there is a FUSED disco

Chose wisely, young grasshopper...

__________________

MSSI

Spec says "all light fixtures are to be fused"

NEC calls for the Disconnect, Correct?

Magnettica

Check NEC 410 for the disconnect requirement. I think they want that quick interlocking snap connector (WAGO) that comes pre-installed from most manufacturers.

Magnettica

410.73 (g)

Celtic

NEC calls for a disco [410.130(G)(1) ~ '08; 410.73(G) ~ '05]

I would question "All light fixtures are to be fused".

__________________

mdshunk

Why? He said that's what the spec says. They can make a spec that all fixtures are to be purple polka dotted. If they do, then you need purple polka dotted fixtures. I'd just add an inline fuseholder to the fixture and be done with it. Fluorescent fixtures are going to come with the disconnect plug in they from the factory nowadays anyhow, so you don't even have to puzzle on whether the inline fuseholder will qualify as a disconnect. You'll have both.

Celtic

In spite of the extra money - it's silly, that's why

__________________

Magnettica

Did a bunch of lights last year with the inline fuses in them but they were HO lights with magnetic ballasts from the 1950's!

MSSI

160 pages of electrical specs and 3 pages of E prints..I just need to note that We dont cover fuse changes as a warranty issue. Thanks for your replies. I guess Ill go the inline fuse route.

jrclen

I had a spec like this some time back. I used in line fuses. I later found out that the engineer figured if a fixture shorted, it would blow the individual fuse rather than trip the branch circuit breaker, plunging the office people into darkness.

This was before the disco rule.

__________________
John

mdshunk

You can order fixtures with fuseholders already in them, but it's cheaper just to put an inline fuseholder in them. I order mind from Newark Electronics. I think you can get a 100 bag for something like a dollar a fuseholder.

http://www.newark.com/jsp/search/bro...se+holder&Ntx=

Celtic

Disco rule or not...what about the emer circuit for just such a case?

__________________

jrclen

No emergency lights in the individual offices, just in the hallways for egress. And the idea was to keep productive even though one fixture was out. I wonder if it ever happened.

__________________
John

Electric_Light

Those are for cars. With a maximum voltage rating of 32v, it wouldn't be NEC compliant. I don't understand the purpose of inline fuse for light fixtures.

Each electronic ballast is internally fused with a standard fuse.

Speedy Petey

Since when?
How do you change it?

__________________

mdshunk

Eh, that was just a for instance. You know they make 125V rated inline fuseholders. That was a quick link to get him started.

MSSI

I cant think of any real good reasons to fuse a 4 ft fixture thats 8ft off the ground. I can understand it for HID Thats had to get to and expensive to repair.. This thing went out for rebid because they are over budgit.
DUH No st.....You paid someone 40K to come up with 662 pages of specs for a 1000sqft consession stand and 2 bathrooms.. A $42,000 inverter.. Incase the power goes out, we need to keep the weenies warm. All #10 home runs for 20A circuits. Etc...
Let them enginers have a little slack and your gonna wind up building a Space Shuttle instead of a pop stand.

Celtic

...and there's the answer:
It don't get much sillier than that!


It's a widely known fact that I have psychic abilities

__________________