load interrupter switch
- Thread starter kika
- Start date
- Status
- Location
- New Jersey
- Occupation
- Journeyman Electrician (retired)
What is a voltage percentage?
zbang
Senior Member
- Location
- Roughly 5346 miles from Earls Court
Our question back is what is a "voltage percentage", not what the value may be; I think some of us have never heard that term.
(Is this in reference to a specific NEC article? which one?)
(Is this in reference to a specific NEC article? which one?)
- Location
- New Jersey
- Occupation
- Journeyman Electrician (retired)
I scanned the entire 2017 and 2020 NEC and nothing for voltage percentage.
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
Equipment voltage ratings are absolute numbers with no adjustments.
Perhaps you mean current adjustments, like 125% for continuous loads.
Perhaps you mean current adjustments, like 125% for continuous loads.
- Location
- Wisconsin
- Occupation
- PE (Retired) - Power Systems
NEC values are based on nominal voltages, subject to the industry standard +/- tolerances.
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
What I mean is, for example, we're never required to exceed nominal voltages by a set percentage.
- Status