msdziedzic
New member
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- Downers Grove, IL
I am looking for information on the N-G bondingrequirements for UPS when on battery? Do you have to have N-G bondingjumper in battery mode? What is the latest NEC2017 requirements. Thank you.
Bonding and Grounding of UPS
- Thread starter msdziedzic
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ron
Senior Member
- Location
- New York, 40.7514,-73.9925
The NEC just says to provide a N-G bond if it is a separately derived service (SDS).
It depends on the UPS design and the associated bypass to figure out if it is a SDS.
For example, look at pages 12- at https://www.vertivco.com/globalasse...rt-series-610-1000kva-installation-manual.pdf
which is an older Liebert UPS with diagrams.
It depends on the UPS design and the associated bypass to figure out if it is a SDS.
For example, look at pages 12- at https://www.vertivco.com/globalasse...rt-series-610-1000kva-installation-manual.pdf
which is an older Liebert UPS with diagrams.
brian john
Senior Member
- Location
- Leesburg, VA
As noted above it depends on the UPS, if you have a bypass with a neutral from the source then you would not bond the neutral on the output, if you have true isolation with a SDS on the output you bond the neutral.
This does not change if you are n battery or not.
This does not change if you are n battery or not.
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