1698111

DCWI 2.7 Steel standard streetlights

OBSERVE SAFETY LIFESAVERSDISTRIBUTION COMMISSIONING WORK INSTRUCTION

2.7 STEEL STANDARD STREETLIGHTS

Purpose: This instruction covers the testing and commissioning of all replacements or new installations of steel standard streetlights. The testing ensures that cables are installed correctly and that the steel standards do not become energised.Note: The following tests must be carried out after installation and before the streetlights are put into service.Note: Bolts and screws in all electrical connections across the Western Power network must be properly tightened.

Work Package No.:______________________ Test Site/Location:________________________

Instrument Serial No.:____________________ Date:_____/______/ 20___

Instrument Calibration Date:_____/_____/ 20_____

1. LOCATION OF STREETLIGHTS (lot no. and road name)A. F.

B. G.

C. H.

D. I.

E. J.

Streetlights supplied from:

Ensure no person makes contact with the steel standard streetlight or the temporary earth electrode while the testing procedures arebeing undertaken.

2. VISUAL INSPECTION AND SAFETY CHECK

DESCRIPTION A B C D E F G H I J

1 Ensure the point of supply has been isolated and tagged. Yes No

2Install an independent earth more than 2 metres from the steelstandard. Ensure there are no underground services where the independent earth is to be located.

3

Before removing the metal inspection cover, test between the steel standard and an independent earth to confirm that no hazardous voltage exists. If a voltage greater than 6 V is recorded on the test instrument, cease testing, investigate the source of the voltage or report this to your supervisor. Proceedif the voltage recorded is less than 6 V.

V V V V V V V V V V

4

Check that the streetlight is correctly installed as per the workspackage requirements, Distribution Construction Standards Handbook HB01 and applicable design drawings, and that there are no signs of damage.

5

Check that there are no loose connections or unconnected cables in the streetlight standards.

(Double insulated streetlight installations do not have a MEN connection.)

Network Standard 11/2013 DM# 1698111 1 of 3

2.7 Steel standard streetlights DCWI

3. INSULATION RESISTANCE TEST


1 Remove the cut-out which isolates the light from the line phaseand line neutral.

2Check that all the cables and streetlight standards are correctly installed as per the work package and that there are no signs of damage.

3 Check that there are no loose connections or unconnected cables in the streetlight standards.

4Disconnect the MEN links and N-E connections on each Class I streetlight standard where applicable. (Double insulated streetlight installations do not have a MEN connection.)

5 Use a 1 kV insulation resistance tester for 1 minute at the point of supply between phase to neutral, phase to earth, and neutral to earth.

Phase to neutral Phase to earth Neutral to earth

M M M

If a reading is unacceptable, cease testing, investigate the problem or report this to your supervisor. Values greater than 10 M for new cables and 1 M for existing cables are acceptable. Ensure that all persons are clear of the circuit before testing.Note: If energisation occurs more than two weeks after these commissioning tests, conduct a final insulation resistance test to ensurethe cable is safe to energise.4. REINSTATEMENT OF ALL MEN LINKS AND N-E CONNECTIONS


1Reinstate all the MEN links and N-E connections which were disconnected as per item 3.4. (Double insulated streetlight installations do not have a MEN connection.)

5. HANDOVER OF RESPONSIBILITY FOR THE COMPLETION OF ITEMS 14I hereby certify that items 1 to 4 have been completed with satisfactory results and transfer control to the network operating authority.

Commissioning Officer:_______________________________________________ NAC #:__________________________

Signature:______________________________________________________ Date & time:__________________________

6. POLARITY TEST (USING A VOLTMETER)DESCRIPTION A B C D E F G H I J

1 Ensure the cut-outs which isolate the lights from the line phase and line neutral are removed.

2If there is a loop-in loop-out, remove the loop-out phase and neutral from the cut-out, links or red spot fuse terminals and separate.

3Ensure all streetlight standards are safe to energise and that each standard is safe for other workers and members of the public.

4 Energise the streetlight supply cable at the point of supply.

5 For testing purposes, use an effective earthed reference point spaced more than 2 meters from any electrically conductive object embedded in the ground.

6

Using a voltmeter test between the

line active and line neutral

line active to independent earth

line neutral and independent earth.

U1 Un216 V 253 V V V V V V V V V V V

U1 PE216 V 253 V V V V V V V V V V V

Un PE0 V 6 V V V V V V V V V V V

7

Reinstate the MEN and N -E at each Class I streetlight standard after testing has been completed satisfactorily and ensure everything is secure and safe from third party access. (Double insulated streetlight installations do not have a MEN connection.)

8If there is a loop-in loop-out, safely reconnect the active and neutral in order to carry out the testing of the next streetlight standard.

9 Insert a fuse into the cover of the cut-out or red spot fuse (or similar) and reinstall.

2 of 3 DM# 1698111Network Standard 11/2013

DCWI 2.7 Steel standard streetlights

10

Test between the steel standard and an independent earth to confirm that no hazardous voltage exists. If a voltage greater than6 V is recorded on the test instrument, cease testing, investigate the source of the voltage or report this to your supervisor.

V V V V V V V V V V

7. HANDOVER OF RESPONSIBILITYI hereby certify that all items have been completed with satisfactory results and transfer control to the project manager.

Commissioning officer:________________________________________________ NAC #:__________________________

Signature:______________________________________________________ Date & time:__________________________

1. Ensure the work area is left tidy with no hazards to the public.2. Hand over responsibility to the operating authority.3. Return this form to the project file as a record of the commissioning/handover certificate.4. After the on-site project officer signs off on the DCWI, send a scanned copy to the relevant manager: the construction manager (for

work performed by Western Power employees); the service manager (for contractors); or the project manager (for the Future Grid).

Network Standard 11/2013 DM# 1698111 3 of 3

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1698111