Dwelling Unit Lighting Long Continuous Load
- #1
I am of the opinion that 220.14(J) allows me to put as many lights on a residential circuit as I would like. Can someone give me a code reference that says that I can not?
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iwire
Moderator
Staff member
- #2
Off the top of my head 210.19, 210.20(A), 210.20(B) and 220.18
But I am curious where this is going to end up. 
- #3
Well, 220.18 says that the load can't exceed the rating of the circuit. How do you figure out the load for the luminaires covered by 210.70...220.14(J). 220.14(J) tells us that no additional load calculations are required for these luminaires, other than the 180 VA per sqaure foot.
210.19 and 210.20 basically say the same thing, but again, what is the load of 100 luminaires in a dwelling? The same load as 100 receptacles in a dwelling.
Rockyd
Senior Member
- Location
- Nevada
- Occupation
- Retired after 40 years as an electrician.
- #4
throw in 210.21 for G.P. Inquiring minds want to follow where this thread is going...
- #5
I see nothing in 210.21 that applies.
- #6
3 watts per square foot unless we are talking fixed lighting loads.But you already knowed that,so just what are you really after
iwire
Moderator
Staff member
- #7
Jim W in Tampa said:
With the current NEC wording can I install 800 fixtures on a 15 amp circuit?
Rockyd
Senior Member
- Location
- Nevada
- Occupation
- Retired after 40 years as an electrician.
- #8
???This is partII Conductors- Minimum Ampacity and Size. I can't put more load on the OCPD than is allowed. Sends me back to 210.3 Which has further support from 220.42. Or am I trying to much to inject writing-between the-lines here?
- #9
Rocky, did you mean 210.20? I really see nothing in 210.21 that applies. 210.21 is, for the most part, a rule about receptacles, not lighitng outlets. 210.3 and 220.42 also have nothing to do with it.
Can I put 800 lights on a 15 amp circuit in a dwelling? Absolutley.
- #10
Sitting back and waiting ,Ryan is setting us up.
- #11
iwire said:
....along with 800 recpt.s
- #12
Jim W in Tampa said:
I'm not setting anybody up. I am saying that you can put 1,000 lights and 1,000 receptacles on the same circuit in a dwelling unit. I am trying to see if anyone can show me a code section that says otherwise.
- #13
I was reading a copy of EC&M or ECM....and the topic was calculations....as I waded through it (I'm not very good with the calcs)...the images showed a room with 6 recpts. calculated exactly the same as that same room with a dozen recpts....which got me thinking about the lighting and switched outlets, TVs, computers, vacuums etc. All these are unknown variables, but WE all know that if there is an open recept., somebody will plug something into it
Rockyd
Senior Member
- Location
- Nevada
- Occupation
- Retired after 40 years as an electrician.
- #14
Outlets don't have to equate into a receptacle, lights have to be powered, and fall in under 220.14(L) 180 VA per outlet. Watching and waiting to see what poison I've been set up for.....
- #16
Rocky, dwellings fall under 220.14(J), not (L).
- #17
Rockyd said:
Read 220.14(J)
- #18
ryan_618 said:
The more I read this:
..the less math it seems I will be doing.
- #19
Amen to that
- #20
LOL...I thought you were all about the math
Source: https://forums.mikeholt.com/threads/dwelling-unit-lighting-loads.30024/
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