Repair faults on overhead line plant and apparatus in the power industry
Overview
This standard is about maintaining overhead line plant and apparatus in an electricity power utilities environment on wood pole or steel structures. Repairs could include refurbishment and could be to high voltage, mains or service conductors or apparatus. This could apply to both electrical transmission or electrical distribution networks and could typically apply to voltages from low voltage up to and including transmission voltages such as 400,000 volts. Networks could be aligned with systems using traditional or emerging energy technologies.
This standard includes confirming instructions, permissions and safety documents, carrying out risk assessments, checking the system is safe to work on, raising and lowering tools, equipment and consumables, carrying out repairs, testing and checking completed work and completing documentation.
This standard is for crafts persons or technicians working for network owners or operators or their sub-contractors who are responsible for repairing faults on overhead line plant and apparatus on electrical networks. This could be carried out by people with different levels of network operational authorisation, but in each case, they will be required to have the degree of supervision which is required for their individual level of authority.
Performance Criteria
You must be able to:
identify work location using system information in line with organisational procedures
carry out all work within the remits of own authority and under the supervision of suitably authorised personnel when required
receive and confirm safety documents, land access permission documents and work instructions about repair activities to be carried out in line with organisational procedures
carry out site specific risk assessments of work areas and condition of plant and apparatus to be worked on, identifying hazards and required control measures in line with organisational procedures
check the system is confirmed as safe to work on in line with organisational operational safety rules
communicate the status of overhead line repair activities to affected parties and designated people when required and in line with organisational procedures
use approved tools, equipment and consumables to address faults on overhead line plant and apparatus in line with organisational procedures
work in line with health and safety, environmental and other relevant regulations, directives and guidance at all times
ensure tools, equipment and consumables are raised, lowered and used in accordance with organisational safety procedures
carry out repairs on overhead line plant and apparatus in line with workplan, safety instructions and organisational procedures
carry out testing procedures before, during and after fault repair activities in line with organisational procedures
check completed repairs comply with organisational specifications and have caused no damage to overhead line plant and apparatus
inspect repaired overhead line plant and apparatus in line with organisational procedures to make sure they operate in line with operating specifications
complete documentation for overhead line plant and apparatus fault repair in line with organisational procedures
confirm completed repair work meets safety requirements before energisation of new equipment or reenergisation of the network
leave work areas in a safe condition in line with organisational procedures
deal with network issues and complications in line with safety and organisational procedures
escalate issues that you cannot resolve to the designated person in line with organisational procedures when required
Knowledge and Understanding
You need to know and understand:
Electrical power principles including three phase alternating current and direct current theories; voltage; dynamic and static engineering systems; application of electrical and electronic circuit theory and interfaces between the system voltage
Electricity network design, construction, capabilities, complexities, operations, boundaries, topologies and control boundaries
Apparatus which makes up the transmission or distribution network and the design, operation, function and limitations of transmission or distribution plant and equipment, substations, transformers, overhead lines, switchgear and auxiliary equipment
Standard terminology, abbreviations and nomenclature in relation to overhead line plant and apparatus and identification, maintenance techniques
The regulatory requirements associated with safety while carrying out work associated in power networks on overhead line plant and apparatus including ground clearance and exclusion zone
Required permissions for entering land and property, what they should contain and how to check them
How to assess the location and structural integrity and the safe procedures for access, egress and working at height
The general and inherent dangers of carrying out work on electrical systems of different voltages under outage and non-outage conditions and required measures to address them
Organisational procedures and safety instructions for receiving and confirming operational, network related instructions in normal and fault conditions
The use of remote and emerging technology for fault repair
The principles of pre task and point of work dynamic risk assessment, when they are required and how to carry them out and record findings
Operational restrictions, their purpose and actions to be taken and how to recognise and use physical signage and network diagram indicators
Who to notify about network related operations, when to notify them and organisational procedures for doing so
Electricity network principles of operation of overhead networks in normal and fault conditions and associated protective devices and their indicators in the event of system fault scenarios
Sources of system information and how to interpret them to identify overhead lines, points of isolation and earthing arrangements including system diagrams, work instructions, fault logs, protection data
The sequence of processes, procedures, stages and operational safety rules relating to fault repair activity
The environmental impact of disposal, organisational decontamination procedures and what to do if things go wrong, including the use of spill kits
The approved plant, apparatus, tools and consumables required for overhead line plant and apparatus repair and how to obtain, inspect, prepare, carry out pre-use checks, use, maintain and store them
Specifications for overhead line plant and apparatus that fall within the remit of your role
Fault repair procedures for overhead line plant and apparatus that fall within the remit of your role
Safety, earthing or bonding arrangements including the correct sequence to apply earthing connectors
How to carry out tensioning and de-tensioning
The purpose of checks and tests for overhead line plant and apparatus, when they are required and how to carry them out including visual checks, functional checks, electrical tests
Organisational procedures and systems for recording and storing operational information and to meet cybersecurity and data governance requirements, including role-based access, secure storage, audit logging, data retention
The route to authorisation and supervision at different levels and the training, experience and certification required for your role
Repair faults on overhead line plant and apparatus in the power industry
Overview
This standard is about maintaining overhead line plant and apparatus in an electricity power utilities environment on wood pole or steel structures. Repairs could include refurbishment and could be to high voltage, mains or service conductors or apparatus. This could apply to both electrical transmission or electrical distribution networks and could typically apply to voltages from low voltage up to and including transmission voltages such as 400,000 volts. Networks could be aligned with systems using traditional or emerging energy technologies.
This standard includes confirming instructions, permissions and safety documents, carrying out risk assessments, checking the system is safe to work on, raising and lowering tools, equipment and consumables, carrying out repairs, testing and checking completed work and completing documentation.
This standard is for crafts persons or technicians working for network owners or operators or their sub-contractors who are responsible for repairing faults on overhead line plant and apparatus on electrical networks. This could be carried out by people with different levels of network operational authorisation, but in each case, they will be required to have the degree of supervision which is required for their individual level of authority.
Performance Criteria
You must be able to:
Knowledge and Understanding
You need to know and understand: