Title Page

  • Site conducted

  • Conducted on

  • Prepared by

  • Location
  • Job#

  • Customer Name

Test for Dead, Isolate, Lock & Tag

  • Assume all conductors may be energised until proven de-energized (earth, neutral)

  • Test known live, test circuit, test known live

  • Check for alternate supplies (batteries, solar, generators)

  • Check for multiple switching paths

  • Lock out Circuit, Tag with "Do not Operate" / "Name and Number" of operator

Test Sheet

  • Tafe Test Sheet

  • Complete test sheets for all verification and testing completed

  • Installation Commissioning - Test Sheets for full installation testing - from AS NZ 3017

  • Installation Commissioning - testing completed against AS NZ 3017

Visual

  • General: Basic protection Fault protection Hazardous parts protection Fire spread protection Equipment condition

  • Consumers Mains: Cable core identification Current carrying capacity Voltage drop Underground conditions Aerial conditions Wiring connection External influence protection

  • Switchboards: Accessible location Protective devices Isolating devices Connecting devices Wiring and switchgear Equipment identification External influence protection

  • Wiring Systems: Conductor size Cable core identification Support and fixing Connections and enclosures Installation conditions Segregation from other services External influence protection

  • Electrical Equipment: Mechanical movement protection Thermal effects protection Particular equipment switching Installation conditions Standard compliance Connection, support, fixing External influence protection Instruction manuals availability

  • Earthing: MEN connection Earth electrode Earthing conductors Equipotential bonding conductors Connections, joints, terminations External influence protection Connection to other systems Additional equipment earthing Supplementary bonding

Continuity (Earth)

  • Main earthing conductor (<= .5 Ohms); disconnect main earth at Earth Bar

  • Protective earthing conductor and neutral (PEN) (resistance should be low enough to operate PD)

  • Equipotential bonding (<= .5 Ohms); disconnect MEN; measure metal pipes, reinforcing steel in building concrete, solar pv, pool etc.

Insulation Resistance

  • Test for Dead, Isolate, Lock & Tag

  • Shorter polymeric insulated cables: >1 MΩ, e.g. 50 MΩ for 50m.<br>Resistance varies with material, length, temperature.<br>PVC insulated cables (50m): 20 MΩ at 20°C, 6 MΩ at 30°C.<br>XLPE insulated cables (50m): 1500 MΩ.

  • Remember that all switch positions should be tested (2-way, intermediate, changeover); equipment on the circuit should be disconnected and tested separately; may need to remove surge protection

  • Instructions: Insulation Resistance Test Consumer Mains where Supply NOT Connected

  • Instructions: Insulation Resistance Test Final Sub-Circuits

  • A-A (3P), A-E, N-E > 1M Ohm at 500V DC for LV circuits;

  • All live conductive parts and earthed parts of equipment > 1M Ohm at 500V DC for LV circuits;

  • Sheathed heating elements >=0.01 M Ohms

Correct Wiring and Polarity

  • Consumer Mains (No Supply connected) - looking for approx 0 Ohm reading between A at POS and A line side of Main Switch; and approx 0 Ohm reading between N at POS and Neutral Bar.

  • Polarity test of submains with earthing conductor: (No MEN at DB; no long trailing lead needed): for Active: isolate PD at MSB; Disconnect sub-main Neutral and Sub-main earth at DB. Measure between earth bar and neutral bar at DB. Should get 0 Ohms (via MEN at MSB); then test Earth Bar at DB to Line side of main PD of switch at DB. Should get infinite Ohms.

  • Instructions - Polarity test of sub-mains (no MEN at DB)

  • Switch - (circuit isolated): test load side of PD switch to terminals of remote control switch (e.g. switch mech for light). Also test E-N (0 Ohms) and A-N (infinite Ohms) at lamp holder

  • Instructions - Polarity test of Switch

  • Polarity test - Energised sub-mains no MEN (Identify PD first, test different if MEN or PE at/to Sub-board)

  • Instructions - Polarity test - energised Submains - (no MEN)

  • Preparation for Polarity test - Energised sub-mains with or without MEN (Identify PD first)

  • Instructions - Polarity test - Energised sub-mains with MEN

  • Instructions - Polarity test - Energised sub-mains without MEN - PE conductor

  • Switches and Socket outlets - energised

  • Lighting points

  • Switches and Socket outlets - see page 39 (3017)

  • Appliance circuits - see page 40 (3017)

  • Interconnection test btwn different circuits - page 41 (3017)

  • Test of Phase Sequence - multiphase socket outlet - p 43 (3017)

Earth Fault Loop Impedance

  • EFLI testing not specifically required for circuits supplying equipment other than socket outlets because of the risk of electric shock - 4.8.2.3 (AS/NZ 3017:2022)

  • Test furthest power point on each circuit

  • Values of FLI back to TX

  • Values of FLI final subcircuit

  • Measuring FLI final subcircuit

Operation of RCDs

  • Carry out Earth Continuity tests first

  • Test to confirm correct connection of RCD to supply

  • Instructions - Test to confirm correct connection of RCD to supply

  • Test to confirm RCD disconnects active conductors using integral test button

  • Instructions - Test to confirm RCD disconnects active conductors using integral test button

  • Instructions - Test to confirm RCD disconnects active conductors using RCD tester (plug connection into socket outlet)

FYI - Testing integrity of incoming Neutral

  • Voltage of 6V or less on Neutral ok

  • Current on A and N measured independently should be substantially the same

  • Tests for high resistance Neutral Tests 1-3. Fig 4.33(a)-(b)

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