How to check phase,neutral and ground of ac wire using multimeter

Discussion in 'General Electronics Chat' started by sumitk, Sep 4, 2012.

  1. sumitk

    Thread Starter New Member

    Aug 1, 2012
    7
    0
    Can someone explain me the how to check for neutral,phase and ground of ac suppy using a multimeter ,if all the three wires are of same color
     
  2. crutschow

    Expert

    Mar 14, 2008
    13,016
    3,235
    Here's an article that my help.
     
  3. sumitk

    Thread Starter New Member

    Aug 1, 2012
    7
    0
    i had checked your link but it's nt clear...!!
     
  4. Dodgydave

    Distinguished Member

    Jun 22, 2012
    4,993
    745
    Put your meter on AC Volts setting,
    CONNECT SUPPLY
    connect meter to Phase and Neutral = 230 Volts (+/- 6% based on European standards)

    connect between Phase and Earth = 230 Volts

    connect between Neutral and Earth = 0Volts

    THE SAME WIRE THAT GIVES YOU 230 VOLTS ON TWO OF THE READINGS IS THE PHASE (LIVE)
    if you live in USA the supply will be 120V AC

    DISCONNECT SUPPLY

    set meter to Ohms

    then connect between Earth at the supply intake, and one of the wires = Zero ohms or as near to , will be the earth wire.
     
    Last edited: Sep 5, 2012
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