12518 version 4
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Check and maintain in-line valves in a gas distribution network
Level
3
Credits
3
Purpose
People credited with this unit standard are able to: locate and identify
procedures, documentation, and equipment for conducting in-line valve
checks; prepare for and carry out in-line gas valve check and maintenance;
reinstate site; and complete reporting and documentation.
Subfield
Gas Industry
Domain
Gas Network Operations
Status
Registered
Status date
20 November 2006
Date version published
20 November 2006
Planned review date
31 December 2011
Entry information
Prerequisite: Unit 12507, Use gas leakage detection
equipment on reticulated gas networks, or demonstrate
equivalent knowledge and skills.
Accreditation
Evaluation of documentation and visit by NZQA and
industry.
Standard setting body (SSB)
NZ Motor Industry Training Organisation (Incorporated)
(MITO)
Accreditation and Moderation Action Plan (AMAP) reference
0114
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 limited to, workplace assessment. The
range statements relate to enterprise specific equipment, procedures, and
processes.
2
The current version of the following documents must be complied with:
Health and Safety in Employment Act 1992;
NZS 5258:2003 Gas distribution networks available at http://www.standards.co.nz.
 New Zealand Qualifications Authority 2016
12518 version 4
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3
All work practices must comply with regulations and codes of practice pertaining to
the gas industry. A full list of applicable regulations and codes is available from the
NZ Motor Industry Training Organisation (Incorporated) (MITO).
4
If working in a valve pit the candidate must comply with Occupational Safety and
Health and company requirements for working in a confined space.
The
recommended standard for this is AS/NZS 2865:2001 Safe working in a confined
space.
5
Definition
Company procedures means the documented methods for performing work activities
and include health and safety, environmental, and quality management requirements.
They may refer to manuals, codes of practice, or policy statements.
Elements and performance criteria
Element 1
Locate and identify procedures, documentation, and equipment for conducting in-line valve
checks.
Performance criteria
1.1
Company procedures for conducting in-line valve checks are located and
interpreted in relation to specified job requirements.
1.2
Job instructions are confirmed in accordance with company procedures.
Range
instructions may include – site location, plans, consents,
easements, valve maintenance records.
1.3
Potential environmental and safety hazards are identified in accordance with
company procedures.
1.4
Equipment, components, and materials for conducting in-line valve checks are
identified and described in terms of type and function.
Range
gas detector, valve key, grease gun, valve grease.
1.5
Equipment is described in terms of potential hazards of incorrect application
and operation and the steps to avoid them are described in accordance with
company procedures.
1.6
Resource requirements are identified and sourced in accordance with company
procedures.
Range
plant, tools, materials, documentation, system components,
personnel, communication equipment.
 New Zealand Qualifications Authority 2016
12518 version 4
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Element 2
Prepare for and carry out in-line gas valve check and maintenance.
Performance criteria
2.1
Safety hazards are identified, and isolated, removed, or minimised in
accordance with company procedures.
Range
2.2
Valve is located in accordance with company procedures.
Range
2.3
gas detector, valve key, grease gun, valve grease.
Valve is checked and maintained in accordance with company procedures.
Range
2.5
may include – drawings, plans, mapping systems, markers, valve
maintenance records.
Equipment is prepared in accordance with company procedures and
manufacturer’s instructions.
Range
2.4
may include – signage, barriers, personal protective equipment,
safe access and egress, confined space, fire, explosion,
asphyxiation, temporary traffic control, environmental protection,
excavations, gas escapes.
may include – leaks, position at start of operation, spindle, key,
pressure, position at completion of operation, cleaned, greased.
Valve pit and box lid are maintained in accordance with company procedures.
Element 3
Reinstate site.
Performance criteria
3.1
Equipment and materials left temporarily on site are stored safely and securely,
or arrangements are made for their collection in accordance with company
procedures.
3.2
Tools, equipment, and materials are removed from site in accordance with job
requirements and company procedures.
3.3
Worksite is reinstated and made safe in accordance with company procedures.
 New Zealand Qualifications Authority 2016
12518 version 4
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Element 4
Complete reporting and documentation.
Performance criteria
4.1
Information is communicated to other parties, both internal and external, in
accordance with company procedures.
Range
4.2
may include but is not limited to – special conditions, completion
notice, additional work.
Records and documents are completed and processed in accordance with
company procedures.
Please note
Providers must be accredited by the Qualifications Authority, 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 the Qualifications Authority 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 NZ Motor Industry Training Organisation (Incorporated) (MITO)
info@mito.org.nz if you wish to suggest changes to the content of this unit standard.
 New Zealand Qualifications Authority 2016