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Title / Carry out electrical tests on high voltage bus connected equipment
Level / 3 / Credits / 4
Purpose / People credited with this unit standard are able to: prepare to test high voltage bus connected equipment, set up test equipment; carry out tests on high voltage bus connected equipment; interpret test results and complete compliance documentation; and place equipment in, or return equipment to, service.
Classification / Electricity Supply > Electricity Supply - Testing
Available grade / Achieved
Entry information
Critical health and safety prerequisites / Unit 14287, Use and maintain test instruments used within the high voltage electrical industry, or demonstrate equivalent knowledge and skills.
Explanatory notes
1This unit standard is intended for, but not restricted to, workplace assessment. The range statements across the unit standard can be applied according to
industry-specific equipment, procedures, and processes.
2Safety of personnel and plant must be prioritised during assessment against this unit standard. If the client safety requirements are not met assessment must stop.
3Performance of the evidence requirements must comply with all current legislation, especially the Electricity Act 1992, and any regulations and codes of practice recognised under that statute; the Health and Safety in Employment Act 1992; and the Resource Management Act 1991. Electricity supply industry codes of practice and documented industry procedures includethe current version of the Safety Manual – Electricity Industry (SM-EI)(Wellington: Electricity Engineers’ Association). A full list of current legislation and industry codes is available from the Electricity Supply Industry Training Organisation, PO Box 1245, Hamilton 3240.
4The phrase in accordance with industry requirementsapplies to all of theevidence requirements in this unit standard.
5Industry requirements include all asset owner requirements; manufacturers’ specifications; and enterprise requirements. Enterprise requirements may include the documented workplace policies, procedures, specifications, business, and quality management requirements relevant to the workplace in which assessment is carried out.
6The term insulation resistance relates to the electrical quantity of resistance between insulated conductors or between insulated parts of equipment which are normally electrically energised (live) and earth.
7Practical exercises should be used for assessment wherever possible.
8This unit standard covers carrying out electrical tests on other high voltage bus connected equipment such as capacitors, line traps, and surge arrestors. Testing is normally applied at electricity supply substations. This unit standard does not cover circuit breakers, transformers, instrument transformers, rotating equipment or cables.
9Definition
CTs=Current Transformers.
Outcomes and evidence requirements
Outcome1
Prepare to test high voltage bus connected equipment.
Evidence requirements
1.1The equipment technical specification and performance standards are selected and interpreted.
Rangemay include but is not limited to – ratings; type of equipment; relevant drawings; methods of operation of: capacitor banks, line traps, surge arrestors, filters, coupling capacitors.
1.2The test specifications and performance standards are selected in terms of client testing requirements.
Rangemay include but are not limited to – capacitance, inductance, insulation resistance, impedance, contact resistance.
1.3The selected test circuitry and inspection requirements are identified in terms of client testing requirements.
Rangetests may include but are not limited to – capacitance, inductance, insulation resistance, impedance, contact resistance.
1.4The extent of main equipment to be released from service is identified and the equipment operational release is requested for the testing work.
Rangeincludes but is not limited to – completing all requests in a timely and correct manner.
Outcome 2
Set up test equipment.
Evidence requirements
2.1An access permit, or its approved equivalent, is obtained and a safe work zone is identified.
Rangemay include but is not limited to – placing boundary markers around the work area, identification of authorisation safety features.
2.2The selected circuit and test equipment is assembled to be ready for testing.
Rangemay include but are not limited to – manufacturer’s guidelines, client operating and maintenance standards, test procedures, inspection of test equipment.
2.3The selected test procedures are obtained from previous testing and are made available for use during testing
Rangemay include but is not limited to – previous test results, history cards, manufacturer’s information and manuals.
2.4All test equipment is checked to ensure that the calibration certification is valid
2.5Any hazards associated with the testing are identified and safety measures are prepared and implemented to comply with industry safety rules.
Rangehazards may include but are not limited to – charged capacitors, auxiliary services, risk of trip for other equipment and alarms, control circuits;
safety measures include but are not limited to – discharged capacitors, isolated auxiliary services, identified risk of trip for other equipment and alarms, earthed open circuit CTs.
Outcome 3
Carry out electrical tests on high voltage bus connected equipment.
Evidence requirements
3.1The selected tests are carried out in accordance with the standard procedures and following the commissioning plan, or as specified by the client.
Rangetests may include but is not limited to – capacitance, inductance, insulation resistance, impedance, contact resistance.
3.2The results of the tests and inspections are recorded as required by standard documentation or as specified by the client.
Outcome 4
Interpret test results and complete compliance documentation.
Evidence requirements
4.1The documented test results are interpreted for compliance with the standard required.
Rangemay include but is not limited to – reference to manufacturer’s requirements, client standards and records of previous results, ensure results are within given specifications.
4.2Compliance or non-compliance documentation is completed for each unit tested.
Rangemay include but is not limited to – manufacturer’s requirements, client documentation requirements, recommendations for remedial work.
Outcome 5
Place equipment in, or return equipment to, service.
Evidence requirements
5.1The equipment being tested is safely placed in, or returned to, service.
Rangeincludes but is not limited to checks to ensure – all test equipment has been removed; all reconnection work is completed, checked and secure; all equipment is left in a state ready for service; the equipment is returned to service without incident.
Planned review date / 31 December 2015Status information and last date for assessment for superseded versions
Process / Version / Date / Last Date for AssessmentRegistration / 1 / 27 April 1998 / 31 December 2012
Revision / 2 / 11 February 2004 / 31 December 2012
Review / 3 / 19 May 2006 / 31 December 2012
Review / 4 / 8 December 2011 / N/A
Consent and Moderation Requirements (CMR) reference / 0120
This CMR can be accessed at
Please note
Providers must be granted consent to assess against standards (accredited) by NZQA, before they can report credits from assessment against unit standards or deliver courses of study leading to that assessment.
Industry Training Organisations must be granted consent to assess against standards by NZQA before they can register credits from assessment against unit standards.
Providers and Industry Training Organisations, which have been granted consent and which are assessing against unit standards must engage with the moderation system that applies to those standards.
Requirements for consent to assess and an outline of the moderation system that applies to this standard are outlined in the Consent and Moderation Requirements (CMR). The CMR also includes useful information about special requirements for organisations wishing to develop education and training programmes, such as minimum qualifications for tutors and assessors, and special resource requirements.
Comments on this unit standard
Please contact the Electricity Supply Industry Training Organisation if you wish to suggest changes to the content of this unit standard.
Electricity Supply Industry Training OrganisationSSB Code 101813 / New Zealand Qualifications Authority 2018