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Title / Demonstrate knowledge of rigging electricity network structures
Level / 4 / Credits / 6
Purpose / People credited with this unit standard are able to: demonstrate knowledge of the principles of rigging that relate to an electricity network structure; inspect and select rigging equipment in the electricity supply environment; and rig electricity network structure for work.
Classification / Electricity Supply > Electricity Supply - Transmission Networks
Available grade / Achieved
Entry information
Critical health and safety prerequisites / Unit 10509, Climb and work on electricity network structures; and Unit 18276 Operate light lifting and rigging equipment in the electricity supply environment.
Explanatory notes
1 This unit standard is intended to be assessed in an educational training environment using a simulated electricity environment, or in a combination of educational training and workplace environments.
2. Safety of personnel and plant must be a priority throughout the assessment. If the safety requirements are not met the assessment must stop.
3 Performance and work practices in relation to the outcomes and evidence requirements must comply with all current legislation, especially the Electricity Act 1992 and any subsequent amendments, and any regulations, codes of practice recognised under that statute; Health and Safety in Employment Act 1992, the Resource Management Act 1991, and their subsequent amendments; electricity supply industry codes of practice and documented enterprise procedures. These include updated versions of Safety Manual – Electricity Industry (SM-EI) Wellington: Electricity Engineers’ Association.
A full list of current legislation and industry codes is available from:
Infrastructure Industry Training Organisation
PO Box 2759
Wellington 6140.
4 Reference to terms, procedures, and specifications in this unit standard may be taken as including industry documented procedures and specifications relevant to the workplace in which assessment is carried out.
5 The following terms and abbreviations relate to this unit standard:
Asset owner refers to an electricity industry participant who owns or operates assets used for generating or conveying electricity.
Asset owner procedures are the approved documented work site methods for carrying out work on electrical generation assets or supply network to the standard required by the asset owner.
Industry requirements include all asset owner procedures; manufacturers’ specifications; and enterprise requirements which cover the documented workplace policies, procedures, specifications, business and quality management requirements relevant to the workplace in which assessment is carried out.
WLL refers to the working load limit.
Outcomes and evidence requirements
Outcome 1
Demonstrate knowledge of the principles of rigging that relate to an electricity network structure.
Evidence requirements
1.1 The fundamental principles of rigging are explained.
Range may include but is not limited to – load, effort, reduction, multiplication, force, reaction.
1.2 The principles for establishing the loading WLL on a rigging system and structure is explained and the loading is determined.
Range may include but is not limited to – safe work site, drop zone, conductor loads, cross arm load application, structure loading, insulator and hardware loading, load evaluation and estimation, tag line requirements, edge protection for rigging equipment.
1.3 The principles for factors of safety are explained by determining the minimum breaking load and the work load limit.
Range may include but is not limited to – wire rope, chain, fibre ropes, web slings, sheaves, blocks, shackles, pulling socks, swivels, head boards, pulling tensions.
1.4 The principles established for rigging loads are explained.
Range may include but is not limited to – uniform load method, trigonometric load method, determination of centre of gravity, rigging protection requirements, square rigging, effects of turnoff angle and wind on a load.
1.5 The communication requirements around rigging operations are determined.
Range may include but is not limited to- radios, hand signals, safety, observers.
1.6 The safety requirements around the use of winches is described.
Range may include but is not limited to- capstan winches, trailer mounted winches, equipotential bonding, induction on load, nip points.
Outcome 2
Inspect and select rigging equipment in the electricity supply environment.
Range may include but is not limited to – ropes, blocks, block and tackle, pull lift hoists, tirfors, turnbuckles, eye bolts, lifting points, come-alongs, wire rope grips, capstan and trailer winches.
Evidence requirements
2.1 Rigging equipment is inspected and any damaged rigging equipment is removed from service according to industry requirements.
Range may include but is not limited to – in-test identification, fit for purpose, WLL identified.
2.2 Suitable rigging equipment is selected for a load lifting or rigging task.
Outcome 3
Rig electricity network structure for work.
Evidence requirements
3.1 Work plan is developed.
Range may include but is not limited to – establishing conductor loads, structure loading, guying, lift plans, equipment requirements, timing, communication and signals, access, obstacles, wind limits, design specification, rigging protection.
3.2 Site safety management is established according to industry requirements.
Range may include but is not limited to -– traffic management, primary hazard zones, drop zones, access permits and protection on other lines, communications and safety observers.
3.3 Load is moved without injury to persons or damage to components and/or equipment in accordance with the Approved Code of Practice for Load-Lifting Rigging.
Range may include but is not limited to – communication and signal methods, centre of gravity of load, access, obstacles, wind conditions, final resting place, design specifications, stability, use installed, backstaying requirements identified, deadman installation.
Planned review date / 31 December 2020Status information and last date for assessment for superseded versions
Process / Version / Date / Last Date for Assessment /Registration / 1 / 23 April 2008 / 31 December 2018
Revision / 2 / 21 May 2010 / 31 December 2018
Review / 3 / 20 August 2015 / N/A
Consent and Moderation Requirements (CMR) reference / 0120
This CMR can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Please note
Providers must be granted consent to assess against standards (accredited) by NZQA, before they can report credits from assessment against unit standards or deliver courses of study leading to that assessment.
Industry Training Organisations must be granted consent to assess against standards by NZQA before they can register credits from assessment against unit standards.
Providers and Industry Training Organisations, which have been granted consent and which are assessing against unit standards must engage with the moderation system that applies to those standards.
Requirements for consent to assess and an outline of the moderation system that applies to this standard are outlined in the Consent and Moderation Requirements (CMR). The CMR 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 Infrastructure ITO (Connexis) if you wish to suggest changes to the content of this unit standard.
Infrastructure ITOSSB Code 101813 / Ó New Zealand Qualifications Authority 2015