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Maintain control and indication systems in a rail environment
Level
3
Credits
5
Purpose
People credited with this unit standard are able to, in a rail environment:
prepare for the maintenance of control and indication systems; carry out
system checks and routine maintenance; repair systems; and test systems
equipment.
Subfield
Rail Transport
Domain
Rail Infrastructure
Status
Registered
Status date
21 May 2008
Date version published
21 May 2008
Planned review date
31 December 2013
Entry information
Open.
Accreditation
Evaluation of documentation and visit by NZQA and
industry.
Standard setting body (SSB)
Competenz
Accreditation and Moderation Action Plan (AMAP) reference
0013
This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Special notes
1
Assessment against this unit standard is to be carried out within the context of an
organisation operating under a current, valid Rail Licence issued in accordance with
the provisions of the Railways Act 2005. The organisation’s operating rules, codes,
and instructions, referred to in this unit standard, are those the organisation has in
place to meet the requirements of the Rail Licence.
2
Candidates must first hold the appropriate licence, qualification, and/or certification
for any electrical work undertaken in the course of assessment for this unit standard.
This condition will be in accordance with organisational procedures and/or regulatory
requirements that govern live electrical work. Examples include: electrical service
technician (A, B), registered electrician.
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24030 version 1
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3
Legislation relevant to this unit standard includes the Health and Safety in
Employment Act 1992, Railways Act 2005, Resource Management Act 1991,
Electricity Act 1992, Electricity Regulations 1997.
4
The following Code of Practice applies to this unit standard:
NZECP 60:1997, New Zealand Electrical Code of Practice for Inspection, Testing
and Certification of Low Voltage A.C. Railway Signalling Control Circuits, Ministry of
Commerce, Wellington.
5
Control and indication system equipment/components may include but are not limited
to: circuit boards (cards); protection devices; circuit breakers; switches; plugs,
connectors and sockets; headers; tag strips; clamp terminal blocks; PCB posts and
solder; crimps; transformers and solenoids; motors; servos; electrical components;
electronic devices; other computer equipment.
6
Tools and equipment for maintenance purposes may include but are not limited to:
crimping tools; wire strippers; soldering irons/flux; printed circuit boards; modules;
power supplies; computer equipment; diagnostic terminals; relays; cubicles; racks;
brackets; cabling and connections; static protection devices.
7
Materials for maintenance purposes may include but are not limited to: flexible multi
core, co-axial, ribbon; telephone and hook up cable; sleeving; PVC; heat shrink;
neoprene; rubber; woven fabric and insulating tapes; solder/flux; screws; masonry
anchors; nuts and bolts; cable anchors; lubricants; cleaning solvents and contact
cleaners; adhesives.
8
Maintenance is to be undertaken on at least three occasions, using one or more
control and indication systems.
9
Operations may:
 be conducted by day or night in all relevant weather conditions;
 be conducted in restricted spaces or exposed conditions or controlled or open
environments;
 involve exposure to chemicals, dangerous or hazardous substances and
movements of equipment, materials and vehicles.
10
Work is performed under minimal supervision, generally within a team environment.
11
Competenz acknowledges the assistance provided by the Transport and Logistics
Industry Skills Council in permitting unit of competency TDTB5001A, Maintain
Remote Control and Non-Vital Interlocking Control Systems to be used as the basis
for this unit standard.
12
Definitions
Control and indication systems refer to an integrated set of equipment/components
designed to collectively transmit and receive signalling data. Such systems are
controlled centrally (CTC) or remotely (signal box).
Organisational procedures refer to documents that include: worksite rules, codes,
and practices; equipment operating instructions; technical specifications; equipment
fault history; documented quality management systems; maintenance schedules; and
health and safety requirements.
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Elements and performance criteria
Element 1
Prepare for the maintenance of control and indication systems.
Performance criteria
1.1
Relevant instructions and information are accessed in accordance with job
requirements and organisational procedures.
1.2
Work is planned to ensure safe repair activities and minimum disruption to train
operations.
Range
1.3
may include but is not limited to – rail permissions, track
protection, Train Control bulletins, local work schedules, train
movements, special circumstances.
Personal protective equipment (PPE) is used in accordance with organisational
requirements.
Range
may include but is not limited to – high visibility clothing, hearing
protection, gloves, sunscreen, sunglasses, safety glasses, insect
repellent, safety headwear, safety footwear, portable radios, hand
lamps, flags.
Element 2
Carry out system checks and routine maintenance.
Performance criteria
2.1
Visual inspection is carried out on equipment/components in accordance with
organisational procedures.
Range
may include but is not limited to – correct components, all
components present and in correct position, secured correctly,
card insertion.
2.2
Action is implemented to ensure the sealing and security of mountings are in
accordance with organisational procedures.
2.3
Maintenance work is carried out in accordance with organisational procedures.
Range
maintenance work may include but is not limited to – cleaning,
vermin control, checking and adjusting levels, checking indicators
and system operation.
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24030 version 1
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Element 3
Repair control and indication systems.
Performance criteria
3.1
System faults are verified using appropriate technical information, fault finding
and diagnostic techniques to identify faulty control equipment.
3.2
Faulty components are replaced, adjusted, and secured in accordance with
organisational procedures.
3.3
System faults identified beyond the scope of first level maintenance are
reported for follow-up action.
Element 4
Test control and indication systems equipment.
Range
test and measurement instruments may include but are not limited to –
insulation/continuity testers, electronic multi meters, communication meters,
oscilloscopes, frequency counters, attenuators, decade boxes, LCR bridges,
processor-based interrogating and logging equipment, laptops.
Performance criteria
4.1
Correct calibration of test instruments is verified in accordance with
organisational procedures.
4.2
Control equipment is adjusted and tested using appropriate test procedures and
equipment to ensure it operates within the specified technical parameters.
4.3
Test results are documented as per organisational procedures, and faulty or
replaced components are tagged and dispatched to maintain equipment spares.
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.
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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 Competenz qualifications@competenz.org.nz if you wish to suggest
changes to the content of this unit standard.
 New Zealand Qualifications Authority 2016