Announcement

Collapse
No announcement yet.

voltage drop at receptacle

Collapse
This topic is closed.
X
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    voltage drop at receptacle

    An electrical inspector in my area is now checking voltage drop at receptacles in dwelling units. He is using a meter that puts a 20 amp load at the receptacle and measures voltage drop.
    This has caused an uproar in our area and the inspector will not listen to reason. My arguement is that he is putting a 20 amp load on a 15 amp receptacle. In other words past its rated load. Also that voltage drop is not an enforcable code requirement. I'm hoping that if reads some unbiased opinions he will realize his whole theory and method of doing this test will convince him that this test makes no sense. One of his arguements is that with a low voltage reading the wire will heat up and cause a fire. I can't seem to convince him that the breaker will see 20 amps regardless of the voltage. Has anybody heard of an inspector performing this test?

    #2
    Re: voltage drop at receptacle

    Tell him he has no enforcement authority for voltage drop.

    If he argues, ask him to show you where it is written.

    Also tell him to stop stressing your wiring system!

    [ December 16, 2004, 05:33 PM: Message edited by: websparky ]
    [COLOR=DarkSlateBlue]Dave Nix[/COLOR]

    Comment


      #3
      Re: voltage drop at receptacle

      Where did they find that idiot ? He is overstepping his authority and he himself is violating the code by placing a known 20 amp load on a 15 amp receptacle.
      Tampa Florida

      Comment


        #4
        Re: voltage drop at receptacle

        If he is failing people for not passing his VD test, I would object.

        If he is just testing for his own edification, I could care less.

        If he is not failing anyone, whats the worst that could happen? Its not going to hurt the wiring unless he leaves the load on for a long time (like hours) and if he did that the breaker would trip.

        And if he happens to find a 20V drop in your wiring, he may well be doing you a favor by finding a potentially big problem for you.
        Bob

        Comment


          #5
          Re: voltage drop at receptacle

          Now Jim,

          I don't call inexperienced electricians "idiots".

          Maybe you could drop the "idiots" when it comes to inexperienced inspectors?

          OK??
          [COLOR=DarkSlateBlue]Dave Nix[/COLOR]

          Comment


            #6
            Re: voltage drop at receptacle

            In most areas the inspector must either pass the job or provide a written notice of failure with a code section cited.

            Unless there is a local amendment the inspector can not fail a job for voltage drop.

            Bob

            Comment


              #7
              Re: voltage drop at receptacle

              Originally posted by ldbelec:
              One of his arguements is that with a low voltage reading the wire will heat up and cause a fire.
              Ask him to show you that with ohms law.

              Comment


                #8
                Re: voltage drop at receptacle

                Ok your right ,but this inexperienced inspector has far to much time on his hands.If he was causing me trouble with my job i would take whatever steps i could to get him removed from a job he should not be doing.Or send him to school before he inspects any more jobs .Is that better ?
                Tampa Florida

                Comment


                  #9
                  Re: voltage drop at receptacle

                  Sure, as long as you're polite you can say just about anything!

                  Thanks,
                  [COLOR=DarkSlateBlue]Dave Nix[/COLOR]

                  Comment


                    #10
                    Re: voltage drop at receptacle

                    His tester is looking all the way to the transformer, so I would ask him to use his pull as a representative of the AHJ and try to get the POCO to increase their conductor size, otherwise all of you may be using # 8 for your branch circuit wiring in most dwelling units.

                    Roger
                    Moderator

                    Comment


                      #11
                      Re: voltage drop at receptacle

                      Just what percentage is he failing them at ?
                      Tampa Florida

                      Comment


                        #12
                        Re: voltage drop at receptacle

                        8 volts-but that is not the point-testing at 20 amps is the point

                        Comment


                          #13
                          Re: voltage drop at receptacle

                          By the way this is westlake ohio. Any local inspectors out there willing to give an opinion?

                          Comment


                            #14
                            Re: voltage drop at receptacle

                            In one local jurisdiction the insp. requires a 5% max vd through their amendments, and they check. But they test the circuit with the load that it is rated for, 12 amp for 15 amp circuit. I think it is wrong to fail someone by putting a 20 amp simulated load on a 15 amp circuit. Ideal makes a gfci/afci tester that also checks for vd at 12,15 and 20 amps simulated load.
                            sample test at panel gfci in basement 15 amp
                            12 amps - 1.6
                            15 amps - 2.0
                            20 amps - 2.7 Hank

                            Comment


                              #15
                              Re: voltage drop at receptacle

                              Originally posted by ldbelec:
                              8 volts-but that is not the point-testing at 20 amps is the point
                              Just cause they are 15A outlets does not mean its necessarily not a 20A circuit.

                              I don't see a really big problem with this new ordnance, as long as everyone has to abide by the same rules.

                              IMO its no less offensive then requiring AFCIs for no real good reason other than to sell a product that no one would otherwise buy.
                              Bob

                              Comment

                              Working...
                              X