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Conduct hydraulic structures safety and surveillance inspections
Level
4
Credits
4
Purpose
People credited with this unit standard are able to: demonstrate knowledge of
the principles of hydraulic structures construction, performance, surveillance
inspections, safety policy documentation, and industry reporting
requirements; plan site specific and workplace surveillance inspections;
conduct hydraulic structures safety and surveillance inspections; respond to
emergencies; and document and report hydraulic structures safety and
surveillance routine and emergency observations and inspections.
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
Open.
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. All
range statements within the unit standard can be applied according to industry
specific equipment, procedures, and processes.
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2
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.
3
The phrase in accordance with industry requirements is implicit in all elements and
performance criteria in this unit standard.
4
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.
5
This unit standard includes surveillance inspections of reservoirs, concrete gravity
and arch dams, earth dams, rockfill dams, lined and unlined canals, tunnels,
spillways, and other water retaining hydraulic structures accessible during normal
operation.
6
This unit standard excludes tailings dams and the surveillance and inspection of
intake and outlet tunnels, penstocks, draught tubes, and other water conduits
requiring removal from service and dewatering for inspection.
7
Assessment for element 4 must be carried out in a simulated situation.
Elements and performance criteria
Element 1
Demonstrate knowledge of the principles of hydraulic structures construction,
performance, surveillance inspections, safety policy documentation, and industry reporting
requirements.
Performance criteria
1.1
General principles of theory of hydraulic structures design, construction,
maintenance, and performance are described.
Range
1.2
concrete gravity dams, concrete arch dams, earth dams, lined
canals, unlined canals, spillways and other water retaining
structures; deficiencies and failures.
The principles of hydraulic structures surveillance inspections are described.
Range
importance of on-site visual inspections and instrumentation
monitoring, data quality, instrument calibration, reliability tests.
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1.3
Principles of enterprise hydraulic structures safety policies are defined.
Range
1.4
enterprise policy documentation, public safety, personnel safety,
asset safety.
Responsibilities of hydraulic structures surveillance inspectors are defined.
Range
individual responsibilities, reporting responsibilities, documented
procedures.
Element 2
Plan site specific and workplace surveillance inspections.
Range
inspection sequence, schedule of work, procedure sheets, resources,
specifications, work plans, identification of hazards, authorisations, observation
equipment requirements.
Performance criteria
2.1
Prepared work plans include all necessary procedures and resources to
achieve the required outcome and allocate resources to optimise safe and
efficient use.
Range
observation equipment, safety equipment.
2.2
Procedure documents are in a format agreed by the customer and industry and
define locations of the site specific observation points.
2.3
Procedure documents are complete, concise, and legible, and reflect identified
risk with hazards being identified and eliminated, isolated, or minimised.
2.4
Procedure documentation for dam surveillance inspections is prepared and
made available for all personnel involved in implementing the plans within the
scheduled timeframe.
Range
operating staff, support office personnel.
Element 3
Conduct hydraulic structures safety and surveillance inspections.
Range
surveillance inspection procedures, safety equipment, instruments and
instrument readings, visual observations and observation points, measuring
equipment, instrument calibrations.
Performance criteria
3.1
Access permit covering surveillance inspection area has been applied for and
received.
Range
reporting, logging, acknowledgement.
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3.2
Accuracy and reliability of surveillance equipment and instruments are verified.
Range
3.3
calibration tests, measuring equipment checks, reliability checks,
comparison with normal values.
Safety and measuring instruments to be operated are identified and the
procedures for the setting up and operation of such equipment are complied
with.
Range
list of site specific tools and equipment, dip meter, ruler,
measuring meters, safety equipment.
3.4
Departures from routine procedures are based on observations sequence, local
knowledge, and observations.
3.5
Visual observations, checks, and readings are carried out in accordance with
established plan requirements.
Range
3.6
Observation data and information are recorded and compared with historical
performance.
Range
3.7
observations sequence, procedure requirements, enterprise
training standards.
enterprise data recording systems and procedures.
Changes in hydraulic structure condition are identified and recorded and
individuals notified in a timeframe and manner which reflect the seriousness of
the change.
Range
changes include but are not limited to – slips, change in seepage
flows, colour, turbidity.
Element 4
Respond to emergencies.
Range
unscheduled event, abnormal condition, alarms, earthquakes, flooding.
Performance criteria
4.1
Emergency event response is coordinated with required individuals and
authorised agencies.
Range
enterprise response documentation and procedures, internal and
external contacts, operating staff, support office, emergency
services, enterprise contact personnel, deputy surveillance
inspectors.
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4.2
Emergency event is acknowledged in accordance with established operating
conditions.
Range
4.3
Emergency surveillance inspections and observation procedures are
implemented.
Range
4.4
emergency procedure and inspection sequence, post-earthquake
procedures, notifications, access permits, test permits.
Impact of emergency event on hydraulic structure is determined and responded
to in accordance with established procedures, policies, priorities, and
instructions.
Range
4.5
reporting, logging, acknowledgements.
local control, contingency plans, emergency operating procedures.
Emergency event reporting is conducted in accordance with established
procedures and instructions.
Range
local instructions and procedures, event reporting standards.
Element 5
Document and report hydraulic structures safety and surveillance routine and emergency
observations and inspections.
Range
routine and emergency reporting procedures, instrumentation and inspection
problems, abnormal readings and observations.
Performance criteria
5.1
Routine hydraulic structure inspection data and observations are recorded and
transferred to the designated analysis system.
Range
5.2
enterprise contact procedures, reporting systems and procedures.
Emergency and abnormal additional written reports are produced in the
prescribed format and filed within scheduled timeframe.
Range
unusual events procedures and reporting requirements, incident
and emergency event reports, emergency contact systems.
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 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