Electrical contractor 37 years. Electrical inspector 2 years
What many call high voltage is really low voltage. I try to go by context rather than terminology. I bet 90% of electricians call 480/277 high voltage. Being that the OP asked the question, I doubt he works with 5000 volts or above. I commend him for asking because I was in a situation 30 years ago where we needed one on a Saturday night. There was a damaged one on site but we opted to wait until we could get a new one. What is 12 volts considered?Why would you even ask such a question. If you are considering patching an high voltage transformer > 65K volts your crazy.
Just so we understand each other
- High (HV), Extra- High (EHV) & Ultra-High Voltages (UHV) - 115,000 to 1,100,000 VAC.
- Medium Voltage (MV) - 2,400 to 69,000 VAC.
- Low Voltage (LV) - 240 to 600 VAC.