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Old 10-12-2019, 02:13 PM   #21
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Does the CEC allow you to calculate the voltage drop for a receptacle based on the load, or the full load the receptacle is rated for? I agree you never really know what's going to be plugged into a receptacle and you ought to install it so unless they force a square peg into a round hole, they're safe.
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8-102 Voltage drop (see Appendices B and D)
1) The voltage drop in an installation shall be based on the connected load of the feeder or branch
circuit if known; otherwise it shall be based on 80% of the rating of the overload or overcurrent device protecting the branch circuit or feeder, and not exceed
a) 3% in a feeder or branch circuit; and
b) 5% from the supply side of the consumer’s service (or equivalent) to the point of utilization.
Very concise answer.

Voltage drop is required to be within those specs up there, correct? Down here it's merely a suggestion.
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Old 10-12-2019, 02:19 PM   #22
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Originally Posted by splatz View Post
Does the CEC allow you to calculate the voltage drop for a receptacle based on the load, or the full load the receptacle is rated for? I agree you never really know what's going to be plugged into a receptacle and you ought to install it so unless they force a square peg into a round hole, they're safe.
On the load if it is known.

Recepts are at 12 or 16A (15 or 20A circuit)


*edit ... I see Mr lightning fingers Incognito can copy/paste code faster than I can type !
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Last edited by emtnut; 10-12-2019 at 02:24 PM. Reason: I'm too slooooow
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Old 10-12-2019, 02:35 PM   #23
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The calculation checks out but with a continuous load, is this correct and safe?
Unless your competing on price for the job, which I assume you are not, I would run a #6 like @emtnut suggested.
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Old 10-13-2019, 04:35 PM   #24
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How do you manage three ways?
Last night I was only 2 people away from having a 3 way.
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Old 10-13-2019, 10:25 PM   #25
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Last night I was only 2 people away from having a 3 way.
I think someone had too much turkey today


Happy Thanksgiving to all the Canucks here
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Old 10-14-2019, 10:13 AM   #26
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Unless your competing on price for the job, which I assume you are not, I would run a #6 like @emtnut suggested.

For safety reasons or to future proof or both? My biggest concern i sthat the wiring will overheat. I sent the client 2 prices and they claim that no other contractor is suggesting #6. I dont really care about the other guys but I need to pass inspection if I use #8 at 125ft.


One last thing, can I use #8 romex for part of the length (about 50ft)? Would make things easier because it's through a finished ceiling.
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Old 10-14-2019, 10:20 AM   #27
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For safety reasons or to future proof or both? My biggest concern i sthat the wiring will overheat. I sent the client 2 prices and they claim that no other contractor is suggesting #6. I dont really care about the other guys but I need to pass inspection if I use #8 at 125ft.


One last thing, can I use #8 romex for part of the length (about 50ft)? Would make things easier because it's through a finished ceiling.
Are you an electrical contractor? Sorry but your questions seem like your not.
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