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Repair and adjust signalling locking and interlocking devices in position
in a rail environment
Level
4
Credits
4
Purpose
People credited with this unit standard are able to, in a rail environment:
prepare for the repair and adjustment of signalling locking and interlocking
devices; diagnose equipment faults; correct equipment faults; and test and
adjust 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
Prerequisite: Unit 24028, Repair and adjust mechanical
signalling equipment in position in a rail environment, or
demonstrate equivalent knowledge and skills.
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.
 New Zealand Qualifications Authority 2016
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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.
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
Locking and interlocking devices may include but are not limited to: signals; points
equipment; ground frames; frames; rods; bars; structures; housings; boxes; signage.
6
Repair and adjustment is to be undertaken on at least three occasions, using one or
more items of locking and interlocking devices.
7
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.
8
Tools and equipment for repair and adjustment purposes may include but are not
limited to: hand and power tools; flood lighting; portable two way radios; air
compressors; measuring rules; gauges.
9
Competenz acknowledges the assistance provided by the Transport and Logistics
Industry Skills Council in permitting unit of competency TDTB5301A, Maintain
Mechanical Signalling Locking and Interlocking Devices to be used as the basis for
this unit standard.
10
Definitions
In position refers to equipment located in its usual place within the rail network, as
opposed to being temporarily off-site in, for example, an engineering workshop or
other maintenance facility.
Organisational procedures refer to documents that include: worksite rules, codes,
and practices; equipment operating instructions; routine maintenance schedules;
technical specifications; documented quality management systems; material safety
data sheets (MSDS), maintenance schedules; and health and safety requirements.
 New Zealand Qualifications Authority 2016
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Elements and performance criteria
Element 1
Prepare for the repair and adjustment of signalling locking and interlocking devices.
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 and adjustment 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
Diagnose equipment faults.
Performance criteria
2.1
Non-compliant or non-operating mechanical locking and interlocking signalling
equipment/components are correctly identified through operational testing.
2.2
Viability of adjustments/replacements/repairs to equipment/components is
correctly evaluated to ensure cost effective operations.
2.3
Support and/or assistance with diagnosis or repair operations is obtained
through communication with appropriate personnel.
Range
may include but is not limited to – in person, use of two way radios
and/or telephones.
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Element 3
Correct equipment faults.
Performance criteria
3.1
Equipment and components are replaced and/or repaired as per organisational
procedures to ensure required level of operations.
Range
repairs may include but are not limited to – filing, grinding,
replacement of components including bushes, pivot pins, gears,
wear plates, welding and joining.
3.2
Viability of repairs to replaced equipment and/or components is evaluated in
accordance with job requirements and organisational procedures.
3.3
Equipment is tagged for repair or disposed of in accordance with organisational
procedures.
3.4
Communication with or support to other personnel is maintained to ensure
equipment is maintained within specification.
Element 4
Test and adjust equipment.
Performance criteria
4.1
All locking and interlocking equipment functions are tested to ensure operational
compliance is in accordance with organisational procedures.
4.2
Follow-up cleaning, lubricating and adjustments to equipment are carried out in
accordance with organisational procedures.
4.3
Equipment is locked and/or secured as specified to ensure safety and
protection from elements or persons.
4.4
Records of repair activities are completed in accordance with organisational
procedures, and forwarded to appropriate personnel for use in identifying future
maintenance requirements.
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.
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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 Competenz qualifications@competenz.org.nz if you wish to suggest
changes to the content of this unit standard.
 New Zealand Qualifications Authority 2016