9) This provides essential advice for assessment of the unit of competency and must be read in conjunction with the Performance Criteria and the Range Statement of the unit of competency and the Training Package Assessment Guidelines.

The Evidence Guide forms an integral part of this Competency Standard Unit and shall be used in conjunction with all component parts of this unit and, performed in accordance with the Assessment Guidelines of this Training Package.

Overview of Assessment

9.1)

Longitudinal competency development approaches to assessment, such as Profiling, require data to be reliably gathered in a form that can be consistently interpreted over time. This approach is best utilised in Apprenticeship programs and reduces assessment intervention. It is the Industry’s preferred model for apprenticeships. However, where summative (or final) assessment is used it is to include the application of the competency in the normal work environment or, at a minimum, the application of the competency in a realistically simulated work environment. It is recognised that, in some circumstances, assessment in part or full can occur outside the workplace. However, it must be in accord with Industry and, Regulatory policy in this regard.

Methods chosen for a particular assessment will be influenced by various factors. These include the extent of the assessment, the most effective locations for the assessment activities to take place, access to physical resources, additional safety measures that may be required and the critical nature of the competencies being assessed.

The critical safety nature of working with electricity, electrical equipment, gas or any other hazardous substance/material carries risk in deeming a person competent. Hence, sources of evidence need to be ‘rich’ in nature so as to minimise error in judgment.

Activities associated with normal every day work have a bearing on the decision as to how much and how detailed the data gathered will contribute to its ‘richness’. Some skills are more critical to safety and operational requirements while the same skills may be more or less frequently practiced. These points are raised for the assessors to consider when choosing an assessment method and developing assessment instruments. Sample assessment instruments are included for Assessors in the Assessment Guidelines of this Training Package.

Critical aspects of evidence required to demonstrate competency in this unit

9.2)

Before the critical aspects of evidence are considered all prerequisites shall be met.

Evidence for competence in this unit shall be considered holistically. Each element and associated Performance Criteria shall be demonstrated on at least two occasions in accordance with the “Assessment Guidelines – UET12”. Evidence shall also comprise:

A representative body of Performance Criteria demonstrated within the timeframes typically expected of the discipline, work function and industrial environment. In particular this shall incorporate evidence that shows a candidate is able to:

Implement Occupational Health and Safety workplace procedures and practices including the use of risk control measures as specified in the Performance Criteria and range; and

Apply sustainable energy principles and practices as specified in the Performance Criteria and range; and

Demonstrate an understanding of the essential knowledge and associated skills as described in this unit to such an extent that the learner’s performance outcome is reported in accordance with the preferred approach; namely a percentile graded result, where required by the regulated environment; and

Demonstrate an appropriate level of employability skills; and

Conduct work observing the relevant Anti Discrimination legislation, regulations, policies and workplace procedures; and

Demonstrated performance across a representative range of contexts from the prescribed items below:

Range of tools/equipment/materials/procedures/workplaces/other variables

Group No

The minimum number of items on which skill is to be demonstrated

Item List

A

Maintain any one of the following types of towers:

Pyramid

Delta pi

Enterprise specific type

B

With regards to "A" incorporate at least two of the following

Insulators

Clamps

Bolts

Structural components

C

With regards to "A" incorporate at least one of the following:

Welding

Cleaning

D

Inspect at least four of the following:

Towers

Overhead conductors/cables

Structural fittings

Electrical Equipment

Hardware.

Earthing systems

E

With regards to "D" incorporate at least two of the following:

Visual*

Infra-red camera

X-Ray

Camera

Binoculars/telescope

(* must do)

F

With regards to "D" incorporate all of the following:

Reporting procedures

Reporting outcomes

G

At least one occasion

Dealing with an unplanned event by drawing on essential knowledge and associated skills to provide appropriate solutions incorporated in the holistic assessment with the above listed items.

Context of and specific resources for assessment

9.3)

This unit should be assessed as it relates to normal work practice using procedures, information and resources typical of a workplace. This should include:

OHS policy and work procedures and instructions.

Suitable work environment, facilities, equipment and materials to undertake actual installation and maintenance of transmission network infrastructure electrical equipment.

In addition to the resources listed above, in Context of and specific resources for assessment, evidence should show demonstrated competency working below ground, in limited spaces, with different structural/construction types and method and in a variety of environments.

Method of assessment

9.4)

This Competency Standard Unit shall be assessed by methods given in Volume 1, Part 3 “Assessment Guidelines”.

Note:

Competent performance with inherent safe working practices is expected in the Transmission, Distribution and Rail Traction Industry. This requires that the specified essential knowledge and associated skills are assessed in a structured environment which is primarily intended for learning/assessment and incorporates all necessary equipment and facilities for learners to develop and demonstrate the essential knowledge and associated skills described in this unit.

Concurrent assessment and relationship with other units

9.5)

There are no concurrent assessment recommendations for this unit.

8) Essential Knowledge and Associated Skills (EKAS): This describes the essential skills and knowledge and their level, required for this unit.

Evidence shall show that knowledge has been acquired of maintaining transmission towers and associated hardware.

All knowledge and skills detailed in this unit should be contextualised to current industry practices and technologies.

KS01-TTP35A Overhead transmission network infrastructure electrical equipment

Evidence shall show an understanding of the installation and maintenance of overhead transmission network infrastructure electrical equipment to an extent indicated by the following aspects:

T1 Procedures for routine maintenance on transmission structures and hardware encompassing:

Procedures for gaining access permits

Reasons for gaining access

Types of maintenance procedures on transmission structures - procedure to follow for inspection/patrols according to the Transmission Supply Authority

Erecting and removing of transmission equipment and hardware from a tower - climbing procedures, square rigging principles, calculation of forces at work within a given square rigging system, construction of a square rigging system.

Procedures for changing insulators - vertical angle suspension, strain insulator, post insulator (horizontal or vertical) and bridge insulator, calculation of conductor forces

Installation of temporary work platforms - types and function of installation tools and equipment, precautions and work methods to follow, procedures for installations of temporary work platforms.

Installation of conductor protective hardware - types and selection of common dampers, tools and equipment, control of Aeolian vibration, procedures for the installation of dampers onto conductors.

Dead line insulator washing - Supply Authority regulations, procedure for washing de-energised transmission lines.

T2 Inspection of towers and structures used for transmission lines encompassing:

Standards, codes, legislation, supply authority regulations and or enterprise requirements

Characteristics of materials used for towers structures within the electrical transmission system - faults that occur that influence the integrity of the structure

Deterioration prevention techniques - relationship between steel, and other materials, inspection procedures for deterioration, deterioration prevention procedures in steel.

Procedures for the repair of deterioration in steel

T3 Inspection of transmission lines encompassing:

Standards, codes, legislation, supply authority regulations and or enterprise requirements

Clearances and safety procedures

Ground line inspection procedures of electrical transmission lines - requirements for inspection of transmission lines and insulators, use of specific equipment and testing devices during testing/inspection, techniques in transmission line inspection, methods of recording data.

Overhead line inspection procedures of electrical transmission lines - methods and requirements for overhead line inspection on electrical structures, clearances for overhead conductors, cables and structures, techniques used to obtain close inspection of transmission lines, use of specific equipment and testing devices during testing/inspection.

Methods of recording data

T4 Powerline safety practices encompassing:

Protective apparatus and apparel for linework - responsibilities for the selection, use, maintenance and storage of protective apparatus and apparel and the types of protective apparatus and apparel used for the line worker

Requirements for the use of ladders - carrying, erecting, collapsing and lowering different types of extension ladder against a standing pole, maintenance checks on different types of ladders, renewal of extension ropes and the safety issues relating to clearances from overhead conductors

Requirements for climbing and working aloft - methods used to identify a pole is safe to climb, methods used to inspect a line worker’s body belt, application of knots and hitches appropriate to the requirements of a line worker, height safety principles including personal fall protection, prevention and related requirements, and the practical procedure of climbing an overhead structure and fitting a pole chair

Traffic management - purpose of traffic management and a line worker’s responsibilities in accordance with relevant statutory requirements and electricity supply industry requirements, demonstration of the procedure used to provide an effective traffic management scheme and the use of a two-way radio

Control of small fires - identification, selection and operation of the appropriate extinguishing mediums for various types of fires, general fire prevention methods and the precautions for personal protection when fighting small fires

Rescue victims from heights and confined spaces - planning, identifying, the procedures, and establishing responses, developing techniques, involvement of external emergency services and practical demonstration/rehearsals of rescuing a person from heights and from confined spaces and emergency procedures for the rescue of an electric shock victim including CPR

Requirements for aerial linework - planning, establishing and implementing relevant aviation authority clearances, determining system requirements, aircrew familiarisation with network operations and equipment, requirements for effective communications operations for aerial work.

10) This relates to the unit of competency as a whole providing the range of contexts and conditions to which the Performance Criteria apply. It allows for different work environments and situations that will affect performance.

This Competency Standard Unit shall be demonstrated in relation to the installation and maintenance of transmission network infrastructure electrical equipment in accordance with construction plans and specifications

Tower types may include pyramid, delta and pi and other enterprise specific types.

Maintenance may include the removal, repair and replacement of tower components, including welding where appropriate; and the replacement, repair and cleaning of associated hardware.

Inspection may be carried out on foot, and/or by conventional ground-based vehicle, or from the air. Aircraft may be helicopters or fixed-wing types.

Inspection techniques include use of X-ray and infrared camera.

Items to be inspected may include towers but not overhead poles and or structures.

Types of electrical apparatus to be inspected include overhead conductors, cables, hardware and footings, underground cables and overhead transition points and, electrical equipment such as pole-mounted transformers and air-break switches, hardware and or earthing systems.

The following constants and variables included in the element/Performance Criteria in this unit are fully described in the Definitions Section 1 of this volume and form an integral part of the Range Statement of this unit:

Appropriate and relevant persons (see Personnel)

Appropriate authorities

Appropriate work platform

Assessing risk

Assessment

Authorisation

Diagnostic, testing and restoration

Documenting detail work events, record keeping and or storage of information

Drawings and specifications

Emergency

Environmental and sustainable energy procedures

Environmental legislation

Environmental management documentation

Established procedures

Fall prevention

Hazards

Identifying hazards

Inspect

Legislation

MSDS

Notification

OHS practices

OHS issues

Permits and/or permits to work

Personnel

Quality assurance systems

Requirements

Testing procedures

Work clearance systems