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Old 10-30-2008, 03:22 PM   #1
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lighting circuit design question


i am about to install the lighting circuit in my 1BR apartment. one circuit for all the lights.

there will be a total of 7 lighting clusters (each cluster consisting one or more recessed or cabinet lights). that excluded the bathroom, whose lights are shared on its own 20A circuit (code requirement).

also, each cluster will have an end of run switch or two switches (living room and kitchen, as both have multiple entrances, will have three-way switches).

my question is: assuming that there were no 3-way switches, can all this be accomplished with 14/2 - i was thinking to connect black IN-black OUT-white SWITCH in each cluster and then black SWITCH-black FIXTURE, and then to the next cluster, on and on and on ? is this a good design not requiring any 14-3 cable ?

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Old 10-30-2008, 04:11 PM   #2
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lighting circuit design question


I seriously doubt your legally allowed to do this work in an apartment.

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Old 10-30-2008, 04:22 PM   #3
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I seriously doubt your legally allowed to do this work in an apartment.
you are probably right.
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Old 10-30-2008, 07:32 PM   #4
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lighting circuit design question


Key word = cluster.

This has bad idea written all over it


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i was thinking to connect black IN-black OUT-white SWITCH in each cluster and then black SWITCH-black FIXTURE, and then to the next cluster, on and on and on ?
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Old 10-30-2008, 11:38 PM   #5
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Key word = cluster.

This has bad idea written all over it




how else do you describe a set of 6 recessed lights controlled by the same switch ? what is a bad idea about it ?
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Old 10-31-2008, 01:08 AM   #6
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lighting circuit design question


amakarevic, Your original post was kind of confusing...
How many lights/wattage total? You'll need to figure out the total current draw of your circuit.
Keep it simple; 14/2 feed to each switch box, then onto the next switch box. 14/2 switch legs from each switch location to the first in each group or cluster of lights then onto the remainder.
"how else do you describe a set of 6 recessed lights controlled by the same switch ? what is a bad idea about it ?"
When many of the folks here, hear the term cluster, it's usually followed by another term, not suitable for those easily offended. It means a plan that's not well thought through.
"how else do you describe a set of 6 recessed lights controlled by the same switch ?" I think it's a gaggle... pete
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Old 10-31-2008, 10:05 AM   #7
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lighting circuit design question


petey_c,

here is a list of "clusters":

1. vestibule - single recessed light
2. living room - 6 recessed lights (2 3-way switches but that does not matter)
3. kitchen - 3, maybe 4, track lights with a converter
4. kitchen sink cabinet undermount light - single
5. kitchen counter cabinet undermount light - single
6. hallway - 2 recessed lights (2 3-way switches but that does not matter)
7. boiler room - single recessed light
8. bedroom - 2 recessed lights

hope this helps and hope this can all go on a single circuit (i don't see why not amperage-wise). i don't expect them ever to all be on at the same time.

thx,

- a -
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Old 10-31-2008, 10:08 AM   #8
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lighting circuit design question


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When many of the folks here, hear the term cluster, it's usually followed by another term, not suitable for those easily offended.
i always had a suspicion that electricians are sensitive men and you are confirming that suspicion.
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Old 10-31-2008, 01:23 PM   #9
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lighting circuit design question


Quote:
there will be a total of 7 lighting clusters
there will be a total of 7 switches.



Quote:
assuming that there were no 3-way switches, can all this be accomplished with 14/2


Quote:
living room - 6 recessed lights (2 3-way switches but that does not matter)
Conflicting data...cannot compute

One 15 amp circuit will suffice. God help the other tennants in the building. Be freaking careful!!
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Old 10-31-2008, 01:28 PM   #10
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lighting circuit design question


dude, two of the "clusters" will have double (3-way) switches, the rest just single. i was exclaiming that to avoid confusion regarding the # of wires in the cable, since x/3 cable is needed for 3-ways switches but that is isolated between the fixture and the switch, not exceeding to go between different lights (clusters). my question was: can what runs between these 7 units (perhaps a better word) be 14/2 and use 14/3 just between the fixture and its 3-way switch ?
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Old 10-31-2008, 01:32 PM   #11
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can what runs between these 7 units (perhaps a better word) be 14/2 and use 14/3 just between the fixture and its 3-way switch ?


You have a way of complicating things. If English is your second language I understand and actually, I am impressed.

If not, learn to use fewer words.


BTW, the answer is yes....... 2 wire everywhere, 3 wire between the 3 ways

Last edited by 220/221; 10-31-2008 at 01:38 PM.
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Old 10-31-2008, 01:37 PM   #12
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lighting circuit design question


thank you sir.

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Old 10-31-2008, 01:50 PM   #13
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lighting circuit design question


Don't call em clusters... they are a circuit with so many lighting fixtures on them.
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Old 10-31-2008, 02:06 PM   #14
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Don't call em clusters... they are a circuit with so many lighting fixtures on them.
bubba - when i say "circuit" i mean everything that goes onto a slot in the main panel. this circuit will contain multiple "clusters" (each having one or more recessed lights) and will all stem from the same panel slot. you can think of a cluster as a sub-entity of a circuit.
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Old 10-31-2008, 02:10 PM   #15
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lighting circuit design question


Yeah, but that doesn't factor into the circuit load. You could have any number of switches and fixtures and so long as the combined amperage is within a reasonable value, the rest doesn't matter. My only point is, the whole cluster thing is nothing to worry about. Look at the circuit as a whole.

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