NZQA Expiring unit standard
19954 version 3
Page 1 of 4
Title
Calculate cable harvesting payload
Level
5
Credits
6
Purpose
People credited with this unit standard are able to: demonstrate
knowledge of cable harvesting system payload analysis; gather
field data for a profile, and draw profiles using field data and
topographical map data; calculate payload manually from
profile and system data; calculate payload using a computer
model from a profile and system data; and interpret payload
analysis data to optimise system productivity.
Classification
Forestry > Forest Operations Management
Available grade
Achieved
Explanatory notes
1
This unit standard must be assessed against on-job.
2
Best Practice Guide refers to the Best Practice Guidelines for Cable Logging
published by FITEC and any subsequent amendments. Available from FITEC at
http://www.fitec.org.nz, or FITEC, PO Box 137067, Parnell, Auckland.
3
Approved Code of Practice refers to the Approved Code of Practice for Safety and
Health in Forest Operations published by the Occupational Safety and Health
Service, (Wellington: Department of Labour, 1999) and any subsequent
amendments. Available at http://www.osh.dol.govt.nz/order/catalogue/301.shtml.
4
Definition
Worksite policy and procedures includes instructions to staff on policy and
procedures (including the application of legislation to worksite situations) which are
formally or informally documented. Examples are standard operating procedures,
codes of practice, specifications, and worksite signage.
Outcomes and evidence requirements
Outcome 1
Demonstrate knowledge of cable harvesting system payload analysis.
Evidence requirements
1.1
Factors impacting on the accuracy and relevance of payload analysis are
explained in accordance with the Best Practice Guide.
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
Range
1.2
19954 version 3
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terrain information, yarder specifications, rope sizes, carriage
weight, cable systems, analysis assumptions.
Uses for payload analysis output data are described in accordance with the
Best Practice Guide and worksite policy and procedures.
Range
cable system productivity, maximum payload, achievable payload,
systems and yarder selection.
1.3
Current industry models for undertaking payload analysis are named and
described in accordance with the Best Practice Guide.
1.4
The principles of the use of intermediate supports and/or tail spars are
explained.
Range
support tree selection, location, siting, system limitations, rigging.
Outcome 2
Gather field data for a profile, and draw profiles using field data and topographical map
data.
Evidence requirements
2.1
Equipment is assembled and calibrated in accordance with manufacturer’s
recommendations.
Range
2.2
Start, end point, and significant slope changes for the profile are identified,
measured, and recorded in accordance with worksite policies and procedures.
Range
2.3
slope angles, slope distance, significant features (eg streams).
Profile data is plotted in accordance with worksite policy and procedures.
Range
2.4
personal protective equipment, chain or tape measure, clinometer,
compass, topographical map, drafting equipment.
suitable scale determined, slope angle, slope distance.
Chord slope, span length, mid-span deflection, and clearance are explained and
drawn on the slope profile.
Range
tower height, tail hold position and height, payload clearance.
Outcome 3
Calculate payload manually from profile and system data.
Evidence requirements
3.1
Cable system is identified and ropes specified in accordance with the Best
Practice Guide and worksite policy and procedures.
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
3.2
Skyline tension is calculated in accordance with the Best Practice Guide and
worksite policy and procedures.
Range
3.3
span length, rope specification, carriage type.
Skyline deflection is calculated in accordance with the Best Practice Guide and
worksite policy and procedures.
Range
3.4
19954 version 3
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mid-span clearance.
Payload is calculated manually in accordance with the Best Practice Guide and
worksite policy and procedures.
Range
skyline tension, clearance, skyline deflection.
Outcome 4
Calculate payload using a computer model from profile and system data.
Evidence requirements
4.1
Input data is verified in accordance with Best Practice Guide and worksite policy
and procedures.
Range
4.2
Analysis parameters are defined and explained in accordance with Best
Practice Guide and worksite policy and procedures.
Range
4.3
terrain information, yarder and carriage specifications, rigging,
stem size.
tower and tail hold positions, system selection, clearance
requirements.
Payloads are calculated in accordance with Best Practice Guide and worksite
policy and procedures.
Outcome 5
Interpret payload analysis data to optimise system productivity.
Evidence requirements
5.1
Interpretation identifies optimum cable system specifications in accordance Best
Practice Guide and worksite policy and procedures.
5.2
Interpretation considers factors that influence optimum payload.
Range
Competenz
SSB Code 101571
inventory data, piece size, landing management, landing
specifications, production safety issues, environmental
considerations, changes to machinery availability.
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
19954 version 3
Page 4 of 4
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
28 April 2003
31 December 2017
Review
2
22 May 2008
31 December 2017
Review
3
10 December 2015
31 December 2017
Consent and Moderation Requirements (CMR) reference
0173
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.
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016