15156 version 3 Page 1 of 6 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. New Zealand Qualifications Authority 2016 15156 version 3 Page 2 of 6 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. New Zealand Qualifications Authority 2016 15156 version 3 Page 3 of 6 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. New Zealand Qualifications Authority 2016 15156 version 3 Page 4 of 6 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. New Zealand Qualifications Authority 2016 15156 version 3 Page 5 of 6 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. New Zealand Qualifications Authority 2016 15156 version 3 Page 6 of 6 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