Announcement

Announcement Module
Collapse

How To Post Images

Want to know the how to upload images to your posts? Image Posting Tutorial
See more
See less

GFCI Electrical Specifications

Page Title Module
Move Remove Collapse
X
Conversation Detail Module
Collapse
  • Filter
  • Time
  • Show
Clear All
new posts

  • GFCI Electrical Specifications

    I wonder if anyone here can answer this - does the NEC specify the operating parameters of a GFCI. For example what amount of ground fault current should cause the GFCI to trip, how quickly should it trip etc.

    This is actually a work related question - I'm developing a product that requires a GFCI as part of the product.

  • #2
    Re: GFCI Electrical Specifications

    Blue, not too sure about the NEC specifics, but I am sure that the fault current for injury protection is in milli amps.Seems like 5 ma to 30 ma.

    Huck

    Comment


    • #3
      Re: GFCI Electrical Specifications

      the NFPA, who authors the NEC, is the body you are looking for I think.

      4 to 6 mA is the trip point for a GFCI. There are testers that you plug in to the outlet and can ramp up the leakage current in 1 mA increments to verify the trip point. /between 4 & 6 mA pases, outside the range fails. The Hubbell Model: GFT2G (~$250.00) or the Greenlee Model: 5708 (~$200) are two that I can think of right off.

      There are also cheaper testers with a push button that will trip the GFI, but you'll have no indication as to when, and they are not accepted by OSHA as an appropriate test of a GFIs operability under 29CFR1910 or 1926.
      ---------------
      Light is faster than sound. That's why some people seem really bright until you hear them speak.
      ---------------
      “If I had my life to live over again, I'd be a plumber.” - Albert Einstein
      ---------
      "Its a table saw.... Do you know where your fingers are?"
      ---------
      sigpic http://www.helmetstohardhats.com/

      Comment

      Working...
      X