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#97297 - 02/16/06 04:17 AM separate branch circuit for elevator pit lighting and receptacles  
ih17dka8  Offline
Junior Member
Joined: Jan 2006
Posts: 8
Seoul, South Korea
NEC 620.24(A) says that "A separate branch circuit shall supply the hoistway pit lighting and receptacles. Required lighting shall not be connected to the load side of a ground-fault circuit interrupter."

In our office, three electrical engineers have the each differenct interpretations.
Those are following.

A)Elevator pit lighting circuit is independent. so don't connect to any other lightings installed at near space out of pit. Elevator pit receptacles circuit is likewise. In addition to that, don't connect also between pit lighting and receptacle.

B)Elevator pit lighting doesn't need dedicated circuit. It can be connected to any other lightings at near space out of pit. However it shall not be connected to receptacles in elevator pit. Receptacles in pit are likewise.

C)Elevator pit lighting and receptacles are included in one circuit. No other lighting and receptacles of outside of pit excluded for that pit circuit.

What do you think which one is right?
I'll expect your considerable insight. Would you enlighten me on this question? Thank you all for your sincere opinion in ahead.


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#97298 - 02/16/06 09:36 AM Re: separate branch circuit for elevator pit lighting and receptacles  
golf junkie  Offline
Member
Joined: Apr 2001
Posts: 507
York, NE
I vote C.


#97299 - 02/16/06 10:06 AM Re: separate branch circuit for elevator pit lighting and receptacles  
Larry Fine  Offline
Member
Joined: Feb 2005
Posts: 693
Richmond, VA
"A separate branch circuit shall supply the hoistway pit lighting and receptacles."

That means one circuit for both.

"Required lighting shall not be connected to the load side of a ground-fault circuit interrupter."

That means line-side connection is okay.


Larry Fine
Fine Electric Co.
fineelectricco.com

#97300 - 02/16/06 10:17 AM Re: separate branch circuit for elevator pit lighting and receptacles  
ghost307  Offline
Member
Joined: May 2005
Posts: 916
Chicago Illinois USA
C also. Just be sure that the light is on the line side of the GFCI receptacle that's in the pit.
If you've got a cord connected sump pump in the pit, do the same thing. The separate circuit that 620.24(A) calls for if for the pit light and the pit "convenience" GFCI receptacle.


Ghost307

#97301 - 02/18/06 12:24 PM Re: separate branch circuit for elevator pit lighting and receptacles  
luckyshadow  Offline
Member
Joined: Jan 2005
Posts: 307
Maryland USA
In Maryland the State Elevator Inspector requires that Nothing else be on the circuit with the pit light and pit receptacle
Pit receptacle must be GFI and the Light Must NOT be on the load side of gfi. They will allow you to have them on seperate circuits,but nothing else can be on those circuits. We just run 1 circuit for both.
Also the Machine room receptacle must be GFI and on its own circuit. They are very strict with the Elevator shaft and machine room here.


#97302 - 02/19/06 11:38 PM Re: separate branch circuit for elevator pit lighting and receptacles  
Tesla  Offline
Member
Joined: Jun 2004
Posts: 1,273
Sacramento, CA
To pass the elevator inspector's test the answer is A....

Nothing else will fly.


Tesla


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