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Service low voltage electric motors 415 volts and below
Level
4
Credits
5
Purpose
People credited with this unit standard are able to plan, service, test, and
report a service on low voltage electric motors 415 volts and below.
Subfield
Electricity Supply
Domain
Electricity Supply - Power System Maintenance
Status
Registered
Status date
11 December 2009
Date version published
11 December 2009
Planned review date
31 December 2014
Entry information
Prerequisites: Unit 2395, Select, use and care for,
engineering hand tools; and Unit 2396, Select, use and
maintain portable hand held engineering power tools; or
demonstrate equivalent knowledge and skills.
Accreditation
Evaluation of documentation and visit by NZQA and
industry.
Standard setting body (SSB)
Electricity Supply Industry Training Organisation
Accreditation and Moderation Action Plan (AMAP) reference
0120
This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Special notes
1
This unit standard is intended for, but not restricted to, workplace assessment. The
range statements within the unit standard can be applied according to industry
specific equipment, procedures, and processes.
2
Safety of personnel and plant must be a priority throughout the assessment. If the
safety requirements are not met the assessment must stop.
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3
Performance and work practices in relation to the elements and performance criteria
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
include the Safety Manual – Electricity Industry (SM-EI) (2004) 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,
Waikato Mail Centre, Hamilton 3240.
4
The phrase in accordance with industry requirements is implicit in all elements and
performance criteria in this unit standard.
5
Industry requirements include all asset owner requirements; manufacturers’
specifications; and enterprise requirements which cover the documented workplace
policies, procedures, specifications, and business and quality management
requirements relevant to the workplace in which assessment is carried out.
6
This unit standard includes fan impeller, shaft, bearing, and ducting.
7
This unit standard includes all equipment within the motor starter control panel and
box and includes the starters, variable speed drives, speed controllers, overloads,
starting resistances, motor windings, bearings, mountings and the shaft up to the
shaft coupling.
8
This unit standard excludes the couplings and power supplies.
9
The term service includes preventative maintenance, inspections, cleaning,
monitoring, and checking of generation plant and equipment.
Elements and performance criteria
Element 1
Plan service of low voltage electric motors 415 volts and below.
Range
maintenance records, scope of work, resources, specifications, work plans,
drawings, identification of hazards.
Performance criteria
1.1
Work plans are prepared.
Range
1.2
prepared plans identify all necessary procedures and resources
required for the service.
Work plans and specifications are complete, concise, and legible, and reflect
identified risk with hazards being identified and eliminated, isolated, or
minimised.
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1.3
Work plans and specifications are made available for all personnel involved in
implementing the plans within the scheduled timeframe.
Element 2
Service low voltage electric motors 415 volts and below.
Range
AC single and three phase, squirrel cage, wound rotor, fixed and variable
speed, DC shunt, series, compound.
Performance criteria
2.1
Isolations are checked.
2.2
Low voltage electric motors and components requiring service are identified.
2.3
Low voltage electric motors and components are serviced.
Range
2.4
includes but is not limited to – clean and service and replace
brushes, brush gear, check mountings, windings, bindings, motor
starter, terminations for tightness and security, clean motor,
contacts on starter, check and service slip rings, bearings,
capacitors, seals (submersibles), speed switches.
Service activities and resources are co-ordinated throughout the duration of the
work to minimise disruption to personnel, plant, electricity generation, and the
environment.
Element 3
Test low voltage electric motors 415 volts and below.
Range
free running and balance, insulation tests on motor and starter windings, test
run, vibration, temperature, alignment, noise, running currents.
Performance criteria
3.1
Tests are carried out in accordance with the prepared work plan.
3.2
Air discharge measurement and analysis is carried out.
Element 4
Report service of low voltage electric motors 415 volts and below.
Range
service report, job sheet, daily diary, log book, test reports and results, plant
history, authorisations.
Performance criteria
4.1
Reported information is completed and actioned.
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4.2
Maintenance information is recorded in the prescribed format and filed within
scheduled timeframe.
4.3
Further action required for plant and equipment is identified, recorded, and
communicated to appropriate personnel.
Please note
Providers must be accredited by NZQA, or an inter-institutional body with delegated
authority for quality assurance, before they can report credits from assessment against
unit standards or deliver courses of study leading to that assessment.
Industry Training Organisations must be accredited by NZQA before they can register
credits from assessment against unit standards.
Accredited providers and Industry Training Organisations assessing against unit standards
must engage with the moderation system that applies to those standards.
Accreditation requirements and an outline of the moderation system that applies to this
standard are outlined in the Accreditation and Moderation Action Plan (AMAP). The
AMAP 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 info@esito.org.nz if
you wish to suggest changes to the content of this unit standard.
 New Zealand Qualifications Authority 2016