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Evidence Guide: UETTDRDS58A - Design underground transmission systems

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

From the Wiki University

 

UETTDRDS58A - Design underground transmission systems

What evidence can you provide to prove your understanding of each of the following citeria?

Plan for and coordinate the design of underground transmission systems

  1. OHS practices/procedures and environmental and sustainable energy procedures, which may influence the design of underground transmission systems, are reviewed and determined.
  2. Purpose of the design is established and expected outcomes of the work are confirmed with the appropriate personnel.
  3. Established policies, procedures and specifications for the design are obtained or established with the appropriate personnel.
  4. Equipment/tools and personal protective equipment are selected and coordinated based on specified requirements and established procedures
  5. Work is prioritised and sequenced for the most efficient and effective outcome following consultation with others for completion within acceptable timeframes, to a quality standard and in accordance with established procedures
  6. Risk control measures are identified, prioritised and evaluated against the work schedule
  7. Relevant work permits are secured to coordinate the performance of work according to requirements and/or established procedures
  8. Resources including personnel, equipment, tools and personal protective equipment required for the job are identified, scheduled and coordinated and confirmed in a safe and technical working order
  9. Liaison and communication issues with other/authorised personnel, authorities, clients and land-owners are resolved and activities coordinated to carry out work
  10. Site is prepared according to the work schedule and to minimise risk and damage to property, commerce, and individuals in accordance with established procedures
  11. Personnel participating in the work, including plant operators and contractors, are fully briefed and respective responsibilities coordinated and authorised where applicable in accordance with established procedures
OHS practices/procedures and environmental and sustainable energy procedures, which may influence the design of underground transmission systems, are reviewed and determined.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Purpose of the design is established and expected outcomes of the work are confirmed with the appropriate personnel.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Established policies, procedures and specifications for the design are obtained or established with the appropriate personnel.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Equipment/tools and personal protective equipment are selected and coordinated based on specified requirements and established procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Work is prioritised and sequenced for the most efficient and effective outcome following consultation with others for completion within acceptable timeframes, to a quality standard and in accordance with established procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Risk control measures are identified, prioritised and evaluated against the work schedule

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Relevant work permits are secured to coordinate the performance of work according to requirements and/or established procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Resources including personnel, equipment, tools and personal protective equipment required for the job are identified, scheduled and coordinated and confirmed in a safe and technical working order

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Liaison and communication issues with other/authorised personnel, authorities, clients and land-owners are resolved and activities coordinated to carry out work

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Site is prepared according to the work schedule and to minimise risk and damage to property, commerce, and individuals in accordance with established procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Personnel participating in the work, including plant operators and contractors, are fully briefed and respective responsibilities coordinated and authorised where applicable in accordance with established procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Carry out and coordinate the design of underground transmission systems

  1. Circuit/systems modelling is used to evaluate alternative proposals as per established procedures.
  2. OHS and sustainable energy principles, functionality and practices to avoid incidents and accidents and minimise waste are incorporated into the project in accordance with requirements and/or established procedures
  3. System design decisions are made on the basis of safety and effective outcomes according to requirements and/or established procedures
  4. Mathematical models of the design are used to analyse the effectiveness of the finished project as per requirements and established procedures
  5. Technical advice is given regarding potential hazards, safety risks and control measures so that monitoring and preventative action can be undertaken and/or appropriate authorities consulted, where necessary, in accordance with requirements and established procedures
  6. Essential knowledge and associated skills are applied to analyse specific data and compare it with compliance specifications to ensure completion of the project within an agreed timeframe according to requirements.
  7. Solutions to non-routine problems are identified and actioned using acquired essential knowledge and associated skills according to requirements
  8. Quality of work is monitored against personal performance agreement and/or established organisational and professional standards.
Circuit/systems modelling is used to evaluate alternative proposals as per established procedures.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

OHS and sustainable energy principles, functionality and practices to avoid incidents and accidents and minimise waste are incorporated into the project in accordance with requirements and/or established procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

System design decisions are made on the basis of safety and effective outcomes according to requirements and/or established procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Mathematical models of the design are used to analyse the effectiveness of the finished project as per requirements and established procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Technical advice is given regarding potential hazards, safety risks and control measures so that monitoring and preventative action can be undertaken and/or appropriate authorities consulted, where necessary, in accordance with requirements and established procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Essential knowledge and associated skills are applied to analyse specific data and compare it with compliance specifications to ensure completion of the project within an agreed timeframe according to requirements.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Solutions to non-routine problems are identified and actioned using acquired essential knowledge and associated skills according to requirements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Quality of work is monitored against personal performance agreement and/or established organisational and professional standards.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Complete and coordinate the design of underground transmission systems

  1. Final inspections of the design are undertaken to ensure they comply with all requirements and include all specifications and documentations needed to complete the design brief.
  2. Appropriate personnel are notified of completion and reports and/or completion documents are finalised.
  3. Reports and/or completion documents are submitted to relevant personnel/organisations for approval and, where applicable, statutory or regulatory approval
  4. Approved copies of design documents are issued and records are updated in accordance with established procedures.
Final inspections of the design are undertaken to ensure they comply with all requirements and include all specifications and documentations needed to complete the design brief.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Appropriate personnel are notified of completion and reports and/or completion documents are finalised.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Reports and/or completion documents are submitted to relevant personnel/organisations for approval and, where applicable, statutory or regulatory approval

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Approved copies of design documents are issued and records are updated in accordance with established procedures.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

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 is based, 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

Completion of six (6) compliant technical designs of an underground transmission network with at least one relating to each of the following project types:

Alteration to existing assets

Underground supplies between substations possibly including overhead to underground connections.

B

Designs should also include all the following:

Activities that address the correction of errors in the process.

Application of a design control checklist which lists all of the required design activities to be carried out in this process.

C

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 design of underground transmission systems.

In addition to the resources listed above, in Context of and specific resources for assessment, evidence should show demonstrated competency working realistic environment and a variety of conditions.

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 Industry to which this Competency Standard Unit applies. 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 recommended concurrent assessments with this unit, however in some cases efficiencies may be gained in terms of learning and assessment effort being concurrently managed.

Required Skills and Knowledge

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 designing underground transmission systems.

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

KS01-TDS58A Underground transmission systems

Evidence shall show an understanding of designing underground transmission systems to an extent indicated by the following aspects:

T1 Generation systems encompassing:

Methods of generating electricity - types of power stations and reasons for their location, layout of thermal and hydroelectric power stations

Relationship between power control and load requirements - operating speeds for thermal and hydroelectric generating sets, typical generator voltage levels and output ratings

The purpose and features of typical types of co-generation systems

T2 Transmission structures and hardware encompassing:

Requirements for the use of enterprise construction manuals, system diagrams/plans and drawings

Types of structures

Types and function of associated hardware/equipment and insulators

Types of conductors

Location of transmissions structures

Other equipment used on transmission structures, e.g. aircraft warning devices

Voltages on transmission structures

T3 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 and 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 and 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 and procedures for the installation of dampers onto conductors

Dead line insulator washing - supply Authority regulations and procedure for washing de-energised transmission lines

T4 Procedures for installation and maintenance on transmission lines, structures and hardware encompassing:

Standards, codes, legislation, supply authority regulations and or enterprise requirements pertaining to the installation and maintenance of transmission lines and associated equipment

Requirements for the use of enterprise construction manuals, system diagrams/plans and drawings - minimum construction clearances for transmission lines and sag/tension requirements

Construction types and structures used in transmission lines

Types, sizes and characteristics of transmission conductors - aluminium conductors steel reinforced and earthing conductors

Types, sizes and characteristics of transmission conductors - aluminium conductors steel reinforced and earthing conductors

Types of electrical connections used to connect transmission conductors - compression termination and bolted termination

Causes and effects of poor electrical connections

Types and application of specialised tools, equipment and hardware for the stringing of transmission conductors

Techniques for stringing, tensioning and terminating transmission conductors

Techniques for installation of associated hardware used on transmission towers

Techniques for maintenance of damage transmission conductors - repair and replacement

T5 High voltage switching principles encompassing:

Standards, codes, legislation, supply authority regulations and or enterprise requirements applicable to switching of high voltage to a given schedule

Requirements for the use of manuals, system diagrams/plans and drawings - types, characteristics and capabilities of electrical apparatus, use, characteristics and capabilities of specialised tools and testing equipment and network interconnectors source of possible backfeed

Role of the HV switching operator

Operational forms, access authorities and permits associated with HV switching - types of operational forms, access authorities and permits and the purpose and procedure for operational forms, access authorities and permits

Use and operation of equipment associated with HV overhead and substation equipment - test instruments, sticks, interrupters and arc stranglers

Types and categories of HV switchgear

Application, function and operating capabilities of switchgear

Restrictions pertaining to HV switching equipment

Procedures for the isolation of HV transmission main and working earths

Earthing HV electrical apparatus practices and procedures for access - purposes of “Operational” and additional work part “on-site” earths, factors determining the location and effectiveness of “Operational” earthing, acceptable industry procedures and personal protective equipment

High voltage switching techniques

Operate switching apparatus - identifying hazards, assessing and controlling risks associated with HV switchgear operation, systematic and defensive techniques, mobile radio procedures and double isolation procedures

T6 Feeder automation system encompassing:

Function of feeder automation system and the main components

Operation procedure for a remote field device from a local control station

Functions of “System Control and Date Acquisition” (SCADA) (or any other relevant Data Acquisition and Control) systems and its main components

SCADA system security interlocks and access restrictions

SCADA system operation when switching apparatus or retrieving data via a remote access device such as; Remote Access Terminal (RAT), Dial Up Voice Annunciated System and Local Control Station

Function of the main components of a local/remote control system

Operation of a field devices using SCADA systems via a Remote Access Terminal (RAT), Dial Up Annunciated System and Local Control Station

T7 Layout principles for underground mains distribution extension encompassing:

Commonwealth, State/Territory and local government legislation, Standards, codes, supply authority regulations and or enterprise requirements applicable to underground mains distribution extension

Requirements for the use of underground mains construction manuals, system diagrams/plans and drawings and for plans such as work method statements for the control of OHS risks

Methods in determining material, equipment and tool lists - components types and quantity required, spacing of components and equipment, costings of items and components.

Purchasing and contractual arrangements to include a requirement to eliminate OHS hazards, minimise risks and provide residual OHS risk information

Determination of conductor size, type and route length

Resources needed for the laying of conductors

Determining the appropriate excavation for the location

Determining the size and depth of excavation

Determining the trench and pit layout procedures

Minimum clearances between conductors

Estimation of the duration of underground distribution extension project

T8 Effects of harmonics to an extent indicated by the following aspects:

Characteristics and effects of harmonics on protection device functions/malfunction

Effects of harmonics on the following: transformers, generators, motors and quality of supply

T9 HV system load calculation principles encompassing:

Structure of HV systems

Ratings of HV system components

Relationship to HV customers

Methods of determining load on HV systems

Records of load on HV systems

Effect of added load on HV feeders - variation of current, voltage, power, reactive power and power factor

Load flows in parallel or loop operation

Enterprise specific network coordination tools

T10 EHV system load calculation principles encompassing:

Structure of EHV transmission systems

Ratings of EHV system components

Relationship to EHV customers

Relationship to generation sources

Methods of determining load on EHV systems

Records of load on EHV systems

Effect of added load on EHV transmission systems - variation of current, voltage, power, reactive power and power factor

Load flows in parallel or loop operation

Enterprise specific network coordination tools

Range Statement

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 design of underground transmission systems and may include the following items or equipment:

Manufacture’s data sheets, documents, drawings

Manufacturers’ recommendations; Reliability performance profiles; Knowledge of local history and experience; Consultation with other Authorities; Environmental influences; Present practices.

Equipment includes; Sectionalisers, air break switches, capacitor banks, transformer taps, metering and protection equipment, data communication systems

Primary and secondary voltage and current injection equipment; time delay measuring equipment; Current transformers; Voltage transformers; Power transformers; Tapchangers; Circuit breakers; Capacitor banks; Ring main units; Audio frequency load control; Circuit breaker auxiliary systems; Substation and metal structure earthing systems; SCADA interfaces and transducer inputs; local opto-isolated alarms: PLC programs; Auto Reclosers (ACRs); protection relays; metering; control circuits; Statistical metering systems; Frame leakage relays; Distance relays; Pilot wire relays; Transformer differential relays; Busbar differential relays; Impedance bus zone relays; Overcurrent and earth fault relays; Transformer neutral check relays; Circuit breaker fail relays; Multi-trip relays; Auto recloser relays; Voltage transformer failure relays; Surge protection relays; Buchholz relays; Winding temperature relays; Sensitive earth fault relays; Phase failure relays; Frequency relays; Load shedding relays; General protection LV devices; Oil temperature protection devices; Oil surge protection devices; Power supplies. differential relays; power systems; multi-facetted schemes; interactive overload schemes, distance protection (incorporating relay selection, switched/non-switched schemes; mutual coupling and teed feeder systems); protection signalling (incorporating series, direct, permissive, distance acceleration, block interruption); telecommunication circuits and equipment.

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

Confined space

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.

Safe design principles

Testing procedures

Work clearance systems