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Evidence Guide: UEEEL0038 - Design switchboards rated for high fault levels (greater than 400 A)

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

 

UEEEL0038 - Design switchboards rated for high fault levels (greater than 400 A)

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

Prepare to design switchboards

  1. Work health and safety (WHS)/occupational health and safety (OHS) processes and workplace procedures for a given work area are identified, obtained and applied
Work health and safety (WHS)/occupational health and safety (OHS) processes and workplace procedures for a given work area are identified, obtained and applied

Completed
Date:

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Scope of the switchboard is identified from design brief

Completed
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Switchboard safety and regulatory requirements are identified, obtained and applied

Completed
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Design development work is planned in consultation with relevant person/s involved with the work to meet scheduled timelines

Completed
Date:

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Develop switchboard design

  1. Relevant performance standards, compliance methods and electrical equipment are applied to switchboard design in accordance with relevant industry standards
Relevant performance standards, compliance methods and electrical equipment are applied to switchboard design in accordance with relevant industry standards

Completed
Date:

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Alternative switchboard design/s is developed in accordance with the design brief

Completed
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Safety, functional and budgetary considerations are incorporated in switchboard design

Completed
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Switchboard design draft is checked in accordance with design brief and relevant industry standards

Completed
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Switchboard design is documented for submission to relevant person/s for acceptance and approval

Completed
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Unplanned situations are dealt with in accordance with workplace procedures

Completed
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Obtain approval for installation design

  1. Switchboard design is documented and presented to client representative and/or relevant person/s
Switchboard design is documented and presented to client representative and/or relevant person/s

Completed
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Requests for alterations to the design are negotiated with relevant person/s in accordance with workplace procedures

Completed
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Final design is documented and approval obtained from relevant person/s

Completed
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Quality of work is monitored in accordance with workplace procedures and relevant industry standards

Completed
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Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Required Skills and Knowledge

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements, performance criteria and range of conditions on at least one occasion and include:

developing outlines of alternative designs

developing the design within the safety and functional requirements and budget limitations

documenting and presenting design effectively

successfully negotiating design alteration requests

obtaining approval for final design

dealing with unplanned events

applying performance standards, compliance methods and electrical equipment to switchboard design

applying relevant work health and safety (WHS)/occupational health and safety (OHS) requirements, including using risk control measures

consulting with relevant person/s in planning design work

identifying scope of switchboard design brief

monitoring quality of work

planning to meet scheduled timelines

preparing to design switchboards.

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements, performance criteria and range of conditions and include knowledge of:

switchboard design of low voltage (LV) switchboards rated for high fault currents, including:

trade calculations encompassing:

mathematical techniques

relevant calculations

linear measurement, areas, volumes and ratios

engineering mechanics encompassing:

base physical quantities

concepts, principles, International System of Units (SI) units, their applications in engineering calculations in relation to physical quantities and associated formulae

mass, velocity, acceleration, force, weight, density and angles

energy/work/power

moments/torque

centre of gravity

mechanical advantage

levers

pulley blocks

efficiency

friction

vectors

resolution of forces

forces in strung conductors

forces on poles and towers

determination of sag

pressure/stress

elementary fluid mechanics

engineering materials encompassing:

classification

ferrous and non-ferrous metals

steels and alloys

properties

tensile strength

temperature and expansion in metals

stress and strain

ductility

applications

corrosion

galvanic corrosion

hardwoods and soft woods

fault current calculations encompassing:

calculation of fault currents

calculation/determination of positive, negative and zero sequence impedances

determination of fault current breaking and let-through energy capacities of protection devices

the influence of fault/arc impedances

impedances operative for phase-to-phase and phase-to-earth faults

calculation of fault currents for phase-to-phase and phase-to-earth faults

approximation calculations by selecting the components with the major impedance

problem-solving techniques

relevant manufacturer specifications and operating instructions

relevant job safety assessments or risk mitigation processes

relevant WHS/OHS legislated requirements

relevant workplace documentation

relevant workplace quality, instructions, policies and procedures.

Range Statement

Range is restricted to essential operating conditions and any other variables essential to the work environment.

Non-essential conditions may be found in the UEE Electrotechnology Training Package Companion Volume Implementation Guide.

Designing a > (greater than) 400 A three phase, 20 kilowatt (kw) fault level switchboard must include at least the following:

control for essential and general supply

metering

sub-main controls

local final sub-circuit distribution board

fault indicators