Electrician Talk banner

boundary

  1. Workplace Safety
    I have a location that has a 400A main breaker, old, hasn't been reset in the last 20... has about a 3 or 4" area that the breaker is exposed. I am doing a arc flash, boundary study and fully expect the answer to come back at 40+cal for working on the equipment. Fed by a trans 50ft away...
Top