NZQA Expiring unit standard
18977 version 5
Page 1 of 3
Title
Demonstrate knowledge of the generation and use of electricity
Level
1
Credits
2
Purpose
People credited with this unit standard are able to: describe
electric current; describe electrical circuits; describe a safe
practice when using electricity; describe the generation of
electricity; and identify electrical specifications of an appliance.
Classification
Science > Physics
Available grade
Achieved
Outcomes and evidence requirements
Outcome 1
Describe electric current.
Evidence requirements
1.1
The description includes a definition of electric current and the factors required
for a flow of electrons.
1.2
The description includes the properties of conductors and insulators in relation
to a flow of electrons.
Outcome 2
Describe electrical circuits.
Range
components of a circuit may include but are not limited to – light bulb, power
supply, wires, switch, fuse, voltmeter, ammeter, rheostat;
evidence of three components of a circuit is required.
Evidence requirements
2.1
The description identifies the components of the circuit.
2.2
The description identifies how the components of a circuit are wired.
Range
2.3
series, parallel.
The description outlines the function or the effect of each component.
NZQA National Qualifications Services
SSB Code 130301
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
18977 version 5
Page 2 of 3
Outcome 3
Describe a safe practice when using electricity.
Range
safe practices include – fuses or cut out switches, isolating transformers or
RCD, earthing, outlet positioning, correct wiring;
evidence of one safe practice is required.
Evidence requirements
3.1
The description outlines the factor(s) or method critical to the safe practice.
Outcome 4
Describe the generation of electricity.
Range
generation processes include – hydro, wind, coal, gas, geothermal;
evidence of one generation process is required.
Evidence requirements
4.1
The description outlines the key steps in the generation process.
Outcome 5
Identify electrical specifications of an appliance.
Evidence requirements
5.1
The identification includes the power rating, determined either by calculation or
by examination of information on the appliance.
5.2
The identification includes the calculated running cost of the appliance.
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 February 2002
31 December 2012
Review
2
30 November 2010
31 December 2012
Rollover
3
20 October 2011
31 December 2012
Rollover and
Revision
4
20 September 2012
31 December 2016
Rollover
5
22 May 2014
31 December 2016
NZQA National Qualifications Services
SSB Code 130301
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
18977 version 5
Page 3 of 3
Consent and Moderation Requirements (CMR) reference
0226
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.
NZQA National Qualifications Services
SSB Code 130301
 New Zealand Qualifications Authority 2016