reddy kw
Member
- Location
- Mudville, upstate New York.
What are limits of downstream protection provided by 20A GFCI receptacles? Is GFCI recept. protection limited by distance from GFCI recept. to protected outlet? I have tried manufacturer's websites but haven't found pertinent info.
I've done service calcs. (i.e. 180 v-a per single/multiple recept. per yoke, 90 v-a per receptacle in Plugmold, etc.). I've figured in branch-circuit load, wire size, voltage drops and OCPD's. I've read and re-read the 2008 NEC.
Excluding requirements by local codes, and issues of the local AHJ, nothing seems to specify the max. number of downstream receptacles I can protect with a 20 amp GFCI recept. in unfinished basements, garages, outbuildings, etc.
What is the practicable limit in terms of (1) How many downstream outlets can be protected and (2) How many feet from the GFCI can the last protected outlet be?
I've done service calcs. (i.e. 180 v-a per single/multiple recept. per yoke, 90 v-a per receptacle in Plugmold, etc.). I've figured in branch-circuit load, wire size, voltage drops and OCPD's. I've read and re-read the 2008 NEC.
Excluding requirements by local codes, and issues of the local AHJ, nothing seems to specify the max. number of downstream receptacles I can protect with a 20 amp GFCI recept. in unfinished basements, garages, outbuildings, etc.
What is the practicable limit in terms of (1) How many downstream outlets can be protected and (2) How many feet from the GFCI can the last protected outlet be?