NZQA Expiring unit standard
19529 version 5
Page 1 of 3
Title
Explain electrical fundamentals in the dairy industry
Level
3
Credits
6
Purpose
People credited with this unit standard are able to explain: the
nature of electrical energy flow in a circuit; the application of
electromagnetic coils and the operation of electric motors in the
dairy industry; the use of safety equipment for protection of
human life, electrical circuits and equipment; and safe practices
for working with electrical equipment in the workplace.
Classification
Dairy Manufacturing > Dairy Technology
Available grade
Achieved
Explanatory notes
1
Low voltage equipment in this unit standard means equipment used on circuits rated
at 600 volts or less.
2
Organisational requirements refers to instructions to staff on policy and procedures
which are documented in memo or manual format and are available in the workplace.
These requirements include but are not limited to – site specific requirements,
manufacturer’s specifications product quality specifications, and legislative
requirements.
3
Legislation relevant to this unit standard includes the Electricity Act 1992, Electricity
Regulations 1997, and the Health and Safety in Employment Act 1992, and their
subsequent amendments.
Outcomes and evidence requirements
Outcome 1
Explain the nature of electrical energy flow in a circuit.
Evidence requirements
1.1
The nature of electricity is explained in terms of electron flow.
Range
1.2
static electrical charge, electron current flow, conventional current
flow, direct current, alternating current.
Electrical circuits are explained in terms of the need for a source of supply, a
complete path for electron flow, and the electrical load.
Primary Industry Training Organisation
SSB Code 101558
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
Range
1.3
19529 version 5
Page 2 of 3
closed circuit, open circuit, short-circuit, series circuit, parallel
circuit.
The relationships between electrical current, voltage, resistance, power and
energy usage are identified along with means of measurement expression and
short-hand symbols.
Outcome 2
Explain the application of electromagnetic coils and the operation of electric motors in the
dairy industry.
Evidence requirements
2.1
Application of electromagnetic coils is explained in terms of use for energy
conversion and turning equipment on and off.
Range
2.2
solenoids, relays, transformers.
The application of electric motors is explained in terms of relationships between
voltage, current, frequency and torque for alternating current induction motors.
Outcome 3
Explain the use of safety equipment for protection of human life, electrical circuits and
equipment.
Evidence requirements
3.1
Devices used to protect human life are explained in terms of earthing, isolation
and monitoring of current flow.
Range
3.2
devices – multiple earth system for power reticulation, earthing of
exposed metal surfaces, insulation, double insulation, isolating
switches, isolating transformers, earth leakage circuit breakers,
residual current devices.
Equipment used to protect electrical circuits and equipment is explained in
terms of provision of protection against short-circuit current flow and low overcurrent flow.
Range
fuses, circuit breakers, motor overloads, motor circuit breakers.
Primary Industry Training Organisation
SSB Code 101558
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
19529 version 5
Page 3 of 3
Outcome 4
Explain safe practices for working with electrical equipment in the workplace.
Evidence requirements
4.1
The responsibilities of a process operator when working with electrical
equipment are identified in accordance with organisational requirements.
Replacement information
This unit standard replaced unit standard 757.
This unit standard is expiring. Assessment against the standard must take place by
the last date for assessment set out below.
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
26 August 2002
31 December 2017
Revision
2
13 June 2003
31 December 2017
Rollover
3
17 July 2009
31 December 2017
Review
4
15 October 2015
31 December 2017
Rollover
5
21 January 2016
31 December 2019
Consent and Moderation Requirements (CMR) reference
0022
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 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.
Primary Industry Training Organisation
SSB Code 101558
 New Zealand Qualifications Authority 2016