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NZQA registered unit standard 29438 version 2 Page 1 of 4 Title Install, commission, and maintain a power quality protection system Level 4 Credits 4 Purpose People credited with this unit standard are able to: – demonstrate knowledge of a system used to provide protection against power supply quality events; – install a system to provide protection against power supply quality events; – commission a system to provide protection against power supply quality events; and – maintain a system over time to provide protection against power supply quality events. Classification Electrical Engineering > Electrical Installation and Maintenance Available grade Achieved Explanatory notes 1 This unit standard has been developed for learning and assessment on-job. 2 Definitions CEPC – Critical Essential Performance Capability. ERAC – Electrical Regulatory Authorities Council. EWRB – Electrical Workers Registration Board. Safe and sound practice – as it relates to the installation of electrical equipment is defined in AS/NZS 3000:2007, Electrical Installations (known as the Australian/New Zealand Wiring Rules). UPS – uninterruptible power supply – static, proprietary-type, uninterruptible power supply system of up to 200 kVA. 3 Range a UPS or power conditioner system to be greater than 2KVA. b Embedded generation to be greater than 10KW. c Candidates may refer to current legislation and Standards during assessment. d Demonstration of safe working practices and installation in accordance with safe and sound practice are essential components of assessment of this unit standard. e All activities and evidence presented for all outcomes and evidence requirements in this unit standard must be in accordance with: i legislation; ii policies and procedures; iii ethical codes; iv Standards – may include but are not limited to those listed in Schedule 2 of the Electricity (Safety) Regulations 2010; v applicable site, enterprise, and industry practice; and, The Skills Organisation SSB Code 100401 New Zealand Qualifications Authority 2017 NZQA registered unit standard 29438 version 2 Page 2 of 4 vi where appropriate, manufacturers’ instructions, specifications, and data sheets. Outcomes and evidence requirements Outcome 1 Demonstrate knowledge of a system used to provide protection against power supply quality events. Range may include but is not limited to – UPS, power conditioner, small local embedded generation sources. Evidence of one is required. Evidence requirements 1.1 Describe how the selected system provides protection against power quality events. Range 1.2 may include but is not limited to – voltage sags and surges, transient under-voltage and over-voltage, loss of supply and harmonics. Evidence of two is required. Identify and describe the function of three of the major internal components of the system. Range may include but is not limited to – filters, line-conditioners, constant-voltage transformers, batteries, charging systems, inverters, by-pass and on-line switching functions, monitoring functions. 1.3 Produce a simple line diagram showing how this system is connected into the electrical supply system. 1.4 Identify safety requirements and rules applicable to the use of the selected system based on reference material. Outcome 2 Install a system to provide protection against power supply quality events. Evidence requirements 2.1 Verify that the selected system will meet the load requirements using manufacturers' specifications and job specification. 2.2 Determine system locations and interconnections using manufacturers' specifications and/or job specification. Range The Skills Organisation SSB Code 100401 may include but is not limited to – battery bank, charging units, distribution and control systems, cable routes, earthing. Evidence of three is required. New Zealand Qualifications Authority 2017 NZQA registered unit standard 2.3 29438 version 2 Page 3 of 4 Install system in accordance with job specification and/or manufacturers' instructions. Outcome 3 Commission a system to provide protection against power supply quality events. Evidence requirements 3.1 Test and certify installation. 3.2 Carry out operational tests and adjust system according to job specification and manufacturers' instructions. tests may include but are not limited to – monitoring, control and protection circuitry, test switches, charging circuitry, operation during supply failure or fluctuation. Evidence of three is required. Range 3.3 Document the installation in accordance with company requirements. Range drawings, test results, commissioning log. Outcome 4 Maintain a system over time to provide protection against power supply quality events. Evidence requirements 4.1 Carry out operational tests in accordance with manufacturers' specifications. 4.2 Compare test results with manufacturers' specifications. 4.3 Log faulty systems and devices with fault data and repair or return faulty equipment for repair in accordance with company requirements. Planned review date 31 December 2019 Status information and last date for assessment for superseded versions Process Version Date Last Date for Assessment Registration 1 21 July 2016 N/A Revision 2 16 March 2017 N/A Consent and Moderation Requirements (CMR) reference 0003 This CMR can be accessed at http://www.nzqa.govt.nz/framework/search/index.do. The Skills Organisation SSB Code 100401 New Zealand Qualifications Authority 2017 NZQA registered unit standard 29438 version 2 Page 4 of 4 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 Skills Organisation [email protected] if you wish to suggest changes to the content of this unit standard. The Skills Organisation SSB Code 100401 New Zealand Qualifications Authority 2017