Major Work Activity B - Installs and maintains generating, transmission, distribution and service systems

Table of Contents

• Task B-7 Installs and maintains utility and non-utility supply services and metering equipment
  • B-7.01 Installs single-phase utility and non-utility supply services and metering equipment
  • B-7.02 Maintains single-phase utility and non-utility supply services and metering equipment
  • B-7.03 Installs three-phase utility and non-utility supply services and metering equipment
  • B-7.04 Maintains three-phase utility and non-utility supply services and metering equipment
• Task B-8 Installs and maintains protection devices
  • B-8.01 Installs overcurrent protection devices
  • B-8.02 Maintains overcurrent protection devices
  • B-8.03 Installs ground fault, arc fault and surge protection devices
  • B-8.04 Maintains ground fault, arc fault and surge protection devices
  • B-8.05 Installs under- and over-voltage protection devices
  • B-8.06 Maintains under- and over-voltage protection devices
• Task B-9 Installs and maintains low-voltage distribution systems
  • B-9.01 Installs low-voltage distribution equipment
  • B-9.02 Maintains low-voltage distribution equipment
• Task B-10 Installs and maintains power conditioning systems
  • B-10.01 Installs power conditioning systems
  • B-10.02 Maintains power conditioning systems
• Task B-11 Installs and maintains bonding, grounding and ground-fault protection and detection systems
  • B-11.01 Installs grounding systems
  • B-11.02 Maintains grounding systems
  • B-11.03 Installs bonding systems
  • B-11.04 Maintains bonding systems
  • B-11.05 Installs ground-fault protection and detection systems
  • B-11.06 Maintains ground-fault protection and detection systems
• Task B-12 Installs and maintains power generating and conversion systems
  • B-12.01 Installs alternating current (AC) generating systems
  • B-12.02 Maintains alternating current (AC) generating systems
  • B-12.03 Installs direct current (DC) generating and conversion systems
  • B-12.04 Maintains direct current (DC) generating and conversion systems
• Task B-13 Installs and maintains renewable energy generating and energy storage systems
  • B-13.01 Installs renewable energy generating and energy storage systems
  • B-13.02 Maintains renewable energy generating and energy storage systems
• Task B-14 Installs and maintains high-voltage systems
  • B-14.01 Installs high-voltage systems
  • B-14.02 Maintains high-voltage systems
• Task B-15 Installs and maintains transformers
  • B-15.01 Installs extra-low-voltage transformers
  • B-15.02 Maintains extra-low-voltage transformers
  • B-15.03 Installs low-voltage single-phase transformers
  • B-15.04 Maintains low-voltage single-phase transformers
  • B-15.05 Installs low-voltage three-phase transformers
  • B-15.06 Maintains low-voltage three-phase transformers
  • B-15.07 Installs high-voltage transformers
  • B-15.08 Maintains high-voltage transformers

Task B-7 Installs and maintains utility and non-utility supply services and metering equipment

Task Descriptor

A utility supply service includes the consumer and supply authority, and a non-utility supply service includes energy management (sub-metering/non-billing). Service entrance equipment distributes the power for single-phase and three-phase electrical systems and equipment. Service equipment allows for the safe connection to the supply distribution systems for the utilization of electricity to meet the needs in buildings and structures.

Supply services can provide normal and temporary power. This equipment allows for the safe utilization of electricity.

For the purpose of this standard, “install” includes both new installations and upgrading of existing systems by removing and replacing components.

Industrial electricians maintain single-phase and three-phase consumer/supply services and metering equipment by troubleshooting, diagnosing faults and repairing them. They also perform maintenance to ensure the consumer/supply services and metering equipment are in good operating condition.

For the purpose of this standard, “maintain” includes inspections, preventative/predictive maintenance, troubleshooting, replacing and repairing activities.

Range of Variables

• services include: overhead, underground, temporary
• service components include: supports, enclosures, raceways, conduit, meter sockets, panels, service entrance equipment, service mast, point of attachment
• service conductors include: wire, cables, conductors
• supply authority includes: local utility, electrical inspectors
• fasteners include: screws, straps, inserts, anchors, wedge clamps, seismic restraints
• metering equipment includes: meter sockets, current transformers (CTs), voltage transformers (VTs), enclosures, meter mounting equipment, associated secondary wiring
• non-electrical metallic piping and structures include: gas lines, water pipes, metallic building components
• documentation includes: drawings, disposal documents, work orders, permits, supply authority documentation, terminal identification

Range of Variables

• single-phase services include: temporary service, overhead, underground, single and multiple metering
• service components include: supports, enclosures, raceways, conduit, panels, service mast, point of attachment
• service conductors include: wire, cables, conductors, bus ducts
• fasteners include: screws, straps, inserts, anchors, wedge clamps, seismic restraints
• metering equipment includes: meter sockets, CTs, PTs, enclosures, meter mounting equipment, associated secondary wiring

Range of Variables

• information includes: where and when problem occurred, has problem happened before, is it intermittent or consistent in nature, have any changes recently been made to the system, associated systems or building (painting or removing partitions), latest inspection report, log books, manufacturers’ manuals, standard operating procedures
• facility sources (for information) include: operators, maintenance personnel, supervisors, work order, other trades
• field assessments include: sensory inspections, technical inspections
• diagnostic and test equipment includes: multimeters, voltage testers, ammeters, power quality analyzers, thermographic imaging devices, insulation resistance testers, TDR (time domain reflectometer), non-contact infrared sensor

Range of Variables

• services include: overhead, underground, temporary
• service components include: supports, enclosures, raceways, conduit, panels, switchgear, service entrance equipment, service mast, point of attachment
• service conductors include: wire, cables, conductors
• supply authority includes: local supply authority, electrical inspectors
• fasteners include: screws, straps, inserts, anchors, wedge clamps, seismic restraints
• metering equipment includes: meter sockets, CTs, VTs, enclosures, meter mounting equipment, associated secondary wiring
• non-electrical metallic piping and structures include: gas lines, water pipes, metallic building components
• documentation includes: drawings, disposal documents, work orders, permits, supply authority documentation, terminal identification

Range of Variables

• three-phase services include: temporary service, overhead, underground, single and multiple metering
• service components include: metering equipment, supports, enclosures, raceways, conduits, panels, switchgear, service entrance equipment, service mast, point of attachment
• service conductors include: wire, cables, conductors
• fasteners include: screws, straps, inserts, anchors, wedge clamps, seismic restraints
• metering equipment includes: meter sockets, CTs, VTs, enclosures, meter mounting equipment, associated secondary wiring

Range of Variables

• facility sources (for information) include: operators, maintenance personnel, supervisor, work order, other trades
• field assessments include: sensory inspections, technical inspections
• diagnostic and test equipment includes: multimeters, voltage testers, ammeters, power quality analyzers, thermographic imaging devices, phase rotation meters, insulation resistance testers, TDR, non-contact infrared sensors

Task B-8 Installs and maintains protection devices

Task Descriptor

Overcurrent protection devices provide protection against excessive currents and short circuits to service entrance, feeder and branch circuit conductors, and equipment. Ground fault protection devices provide protection against shock and current leakage and are usually used in conjunction with overcurrent devices. Arc fault protection devices provide protection from the effects of arc faults by de-energizing the circuit when an arc fault is detected. These devices may also have overcurrent protection for the circuit. Surge protection devices prevent transient voltages from entering or leaving the system. Under- and over-voltage devices prevent under- and over-voltage condition to protect the downstream equipment.

For the purpose of this standard, “install” includes both new installations and upgrading of existing systems by removing and replacing components.

Industrial electricians maintain overcurrent, ground fault, arc fault, surge protection devices and under/over voltage devices by troubleshooting, diagnosing faults, replacing devices and repairing them. They also perform maintenance on these devices to ensure they are in good operating condition.

Industrial electricians may also be responsible for maintaining and updating coordination studies (selective or non-selective coordination) for the distribution systems.

For the purpose of this standard, “maintain” includes inspection, preventative/predictive maintenance, troubleshooting, replacing and repairing activities.

Range of Variables

• overcurrent protection devices include: fuses, breakers, relay protection
• enclosures include: CSA classified enclosures, enclosures for hazardous locations
• hardware includes: bolts, screws, brackets, stand-offs, cabling, transition pieces
• documentation includes: as-builts, schematics, panel schedules, log sheets, drive drawings, shop drawings

Range of Variables

• overcurrent protection devices include: fuses, breakers, relay protection
• documentation includes: as-builts, schematics, panel schedules, log sheets, drive drawings, shop drawings

Range of Variables

• tests include: recalibration, thermographic, scheduled cycling (operation of breaker), continuity, contact resistance
• diagnostic and test equipment includes: multimeters, voltage testers, ammeters, power quality analyzers, thermographic imaging devices, insulation resistance testers, load banks, circuit breaker tester, non-contact infrared sensors
• information includes: where and when problem occurred, has problem happened before, is it intermittent or consistent in nature, have any changes recently been made to the system, associated systems or building (painting or removing partitions), utility reconfigurations, latest inspection report, log books, manufacturers’ manuals, standard operating procedures
• facility sources (for information) include: operators, maintenance personnel, supervisor, work order, other trades
• field assessments include: sensory inspections, technical inspections

Range of Variables

• application includes: utilization equipment, service and distribution equipment, basic insulation level (BIL) ratings
• ground fault protection devices include: ground fault circuit interrupter (GFCI) receptacles, GFCI breakers, non-GFCI circuit breakers and ground fault relays
• arc fault protection devices include: combination-type arc fault circuit interrupter (AFCI) branch outlet devices, combination-type AFCI breakers
• surge protection devices include: metal oxide varistor (MOV), zener diodes, thyristors, surge suppressors, lightning arrestors
• hardware includes: bolts, screws, brackets, stand-offs, cabling, transition pieces, boxes, enclosures
• documentation includes: as-builts, schematics, panel schedules, log sheets, drive drawings, shop drawings

Range of Variables

• ground fault protection devices include: GFCI receptacles, GFCI breakers
• arc fault protection devices include: combination-type AFCI branch outlet devices, combination-type AFCI breakers
• surge protection devices include: MOV, zener diodes, thyristors, surge suppressors, lightning arrestors
• documentation includes: as-builts, schematics, panel schedules, log sheets, drive drawings, shop drawings

Range of Variables

• diagnostic and test equipment includes: multimeters, voltage testers, ammeters, power quality analyzers, thermographic imaging devices, insulation resistance testers, non-contact infrared sensors
• information includes: where and when problem occurred, has problem happened before, is it intermittent or consistent in nature, have any changes recently been made to the system, associated systems or building (painting or removing partitions), latest inspection report, log books, manufacturers’ manuals, standard operating procedures
• facility sources (for information) include: operators, maintenance personnel, supervisors, work order, other trades
• field assessments include: sensory inspections, technical inspections

Range of Variables

• ground fault protection devices include: GFCI receptacles, GFCI breakers
• arc fault protection devices include: combination-type AFCI branch outlet devices, combination-type AFCI breakers
• surge protection devices include: MOV, zener diodes, thyristors, surge suppressors, lightning arrestors

Range of Variables

• under- and over-voltage protection devices include:protective relays, sensors, voltage transformer (VT)
• hardware includes: bolts, screws, brackets, stand-offs, cabling, transition pieces, boxes, enclosures
• documentation includes: as-builts, schematics, panel schedules, log sheets, drive drawings, shop drawings, terminal identification

Range of Variables

• under- and over-voltage protection devices include: protective relays, sensors, VTs
• documentation includes: as-builts, schematics, panel schedules, log sheets, drive drawings, shop drawings, terminal identification

Range of Variables

• diagnostic and test equipment includes: multimeters, voltage testers, ammeters, power quality analyzers, thermographic imaging devices, insulation resistance testers, panel meter calibrator, non-contact infrared sensor, relay test sets
• information includes: where and when problem occurred, has problem happened before, is it intermittent or consistent in nature, have any changes recently been made to the system, associated systems or building (painting or removing partitions), latest inspection report, log books, manufacturers’ manuals, standard operating procedures
• facility sources (for information) include: operators, maintenance personnel, supervisors, work order, other trades
• field assessments include: sensory inspections, technical inspections

Range of Variables

• under- and over-voltage protection devices include: protective relays, sensors, VTs
• documentation includes: as-builts, schematics, panel schedules, log sheets, drive drawings, shop drawings, terminal identification

Task B-9 Installs and maintains low-voltage distribution systems

Task Descriptor

Distribution equipment provides power for all electrical systems and equipment. Low voltage is any voltage exceeding 30 V AC but not exceeding 1000 V AC or exceeding 42.4 V DC but not exceeding 1060 V DC . This equipment allows for safe utilization of electricity. This task does not include Class 1 and Class 2 systems.

For the purpose of this standard, “install” includes both new installations and upgrading of existing systems by removing and replacing components.

Industrial electricians maintain distribution equipment by troubleshooting, diagnosing faults and repairing them. They also perform maintenance on the equipment to ensure it is in good operating condition.

For the purpose of this standard, “maintain” includes inspection, preventative/predictive maintenance, troubleshooting, replacing and repairing activities.

Range of Variables

• low-voltage power distribution equipment includes: panels, sub-panels, power distribution centres (PDC), switchboards, breakers, fuses, disconnects, transfer switches, racking equipment, CTs, VTs, busbars, splitters, motor control centers (MCC), transformers
• enclosures include: CSA enclosures, enclosures for hazardous locations
• documentation includes: as-builts, schematics, panel schedules, log sheets, drive drawings, shop drawings, terminal identification

Range of Variables

• low-voltage power distribution equipment includes: panels, sub-panels, PDCs, switchboards, breakers, fuses, disconnects, transfer switches, racking equipment, CTs, VTs, busbars, splitters, MCCs, transformers
• considerations include: load, voltage ratings, required circuit capacity, available fault currents
• enclosures include: CSA enclosures, enclosures for hazardous locations

Range of Variables

• facility sources (for information) include: operators, maintenance personnel, supervisors, work order, other trades
• field assessments include: sensory inspections, technical inspections
• diagnostic and test equipment includes: multimeters, voltage testers, ammeters, power quality analyzers, thermographic imaging devices, insulation resistance testers, non‑contact infrared sensors

Range of Variables

• low-voltage distribution equipment includes: panels, sub-panels, PDCs, switchboards, breakers, fuses, disconnects, transfer switches, racking equipment, CTs, VTs, busbars, splitters, MCCs, transformers

Task B-10 Installs and maintains power conditioning systems

Task Descriptor

Power conditioning systems include filters, capacitors and line reactors, and are used to provide a smooth sinusoidal alternating current (AC) wave thereby delivering a voltage of a constant level and power factor characteristics that enable load equipment to function as designed (reduction in harmonics).

For the purpose of this standard, “install” includes both new installations and upgrading of existing systems by removing and replacing components.

Industrial electricians maintain power conditioning and uninterruptible power supply (UPS) by troubleshooting, diagnosing faults and repairing them. They also perform maintenance to ensure these systems are in good operating condition.

For the purpose of this standard, “maintain” includes inspections, preventative/predictive maintenance, troubleshooting, replacing and repairing activities.

Range of Variables

• conditions include: harmonics, power factor correction, transient voltages and current, induced frequencies
• components include: batteries, transformers, capacitors, shunt coils, diodes, reactors, synchronous condensers (motors), filters
• fasteners include: screws, bolts, straps, inserts, anchors, wedge clamps, seismic restraints
• documentation includes: as-builts, schematics, panel schedules, log sheets, drive drawings, shop drawings, maintenance logs, terminal identification

Range of Variables

• power factor correction equipment includes: synchronous condensers (motors), reactors, capacitors
• equipment used to reduce harmonics includes: zero sequence/passive and active filters, K-rated or zig zag transformers and capacitors
• UPS equipment includes: online, offline, online interactive, maintenance bypass and static bypass, batteries and battery charging systems

Range of Variables

• information includes: where and when problem occurred, has problem happened before, is it intermittent or consistent in nature, have any changes recently been made to the system, associated systems or building (painting or removing partitions), latest inspection report, log books, manufacturers’ manuals, standard operating procedures
• facility sources (for information) include: operators, maintenance personnel, supervisors, work order, other trades
• field assessments include: sensory inspections, technical inspections
• diagnostic and test equipment include: battery load testers, multimeters, voltmeters, ammeters, power quality analyzers, oscilloscopes, thermographic imaging devices, non-contact infrared sensor
• components include: batteries, battery chargers, transformers, capacitors, shunt coils, diodes, reactors, synchronous condensers (motors), filters, fuses, UPS
• cleaning and adjusting procedures include: cleaning fans and filters, load testing batteries, adjusting cabinets and door seals

Range of Variables

• components include: batteries, battery chargers, transformers, capacitors, shunt coils, diodes, reactors, synchronous condensers (motors), filters
• power factor correction equipment includes: synchronous condensers (motors), capacitors, inverters (renewable energy)
• equipment used to reduce harmonics includes: zero sequence/passive and active filters, K-rated and zig zag transformers and capacitors
• surge suppression equipment includes: capacitors, shunt coils and diodes

Task B-11 Installs and maintains bonding, grounding and ground-fault protection and detection systems

Task Descriptor

Bonding and grounding systems are used to protect life from shock and equipment from transient and fault current. Bonding is a path for fault current and keeps everything at the same potential. Grounding is a path for connecting equipment to ground to maintain equal potential. Ground fault protection systems are used to detect electrical current leakage and de-energize. They also detect and indicate the presence of ground fault, as in an ungrounded system.

For the purpose of this standard, “install” includes both new installations and upgrading of existing systems by removing and replacing components.

For the purpose of this standard, “maintain” includes troubleshooting, maintaining and repairing activities.

Range of Variables

• grounding electrodes include: manufactured electrodes (rods, plates, clamps), field assembled (buried copper conductors), in-situ(metallic water pipes, metallic pilings, reinforcing steel)
• grounding system components include: grounding electrodes, grounding conductors, grounding connectors (compression, mechanical and exothermic)
• ground testing equipment includes: ground loop impedance tester, megohmmeter, multimeter

Range of Variables

• information includes: where and when problem occurred, has problem happened before, is it intermittent or consistent in nature, have any changes recently been made to the system, associated systems or building (painting or removing partitions), latest inspection report, log books, manufacturers’ manuals, standard operating procedures
• facility sources (for information) include: operators, maintenance personnel, supervisors, work order, other trades
• field assessments include: sensory inspections, technical inspections
• diagnostic and test equipment includes: multimeters, voltage testers, ammeters, insulation resistance testers, ground loop impedance tester
• grounding system components include: grounding electrodes, grounding conductors, grounding connectors (mechanical, compression and exothermic)

Range of Variables

• grounding system components include: grounding electrodes, grounding conductors, grounding connectors (mechanical, compression and exothermic)

Range of Variables

• bonding components include: metallic raceways, cables, grounding bushings, copper or aluminum conductors, antioxidants, connectors (mechanical, compression and exothermic), lock nuts, terminations
• testing equipment includes: megohmmeter, multimeter

Range of Variables

• information includes: where and when problem occurred, has problem happened before, is it intermittent or consistent in nature, have any changes recently been made to the system, associated systems or building (painting or removing partitions), latest inspection report, log books, manufacturers’ manuals, standard operating procedures
• facility sources (for information) include: operators, maintenance personnel, supervisors, work order, other trades
• field assessments include: sensory inspections, technical inspections
• diagnostic and test equipment includes: multimeters, voltage testers, ammeters, insulation resistance testers
• bonding components include: metallic raceways, cables, grounding bushings, copper or aluminum conductors, antioxidants, connectors (mechanical, compression and exothermic), lock nuts, terminations

Range of Variables

• bonding components include: metallic raceways, cables, grounding bushings, copper or aluminum conductors, antioxidants, connectors (mechanical, compression and exothermic), lock nuts, terminations

Range of Variables

• ground fault protection and detection systems include: ground fault protection (solidly grounded systems), ground fault detection (ungrounded systems, impedance grounded systems, mobile equipment)
• ground fault protection and detection system components include: CTs, VTs, resistors, relays, annunciators (horns, panels), indicators (pilot lights), reset buttons, breakers, interconnecting wiring, ground fault sensors (direct, residual or zero sequence), meters
• fasteners include: screws, bolts, straps, inserts, anchors, wedge clamps, seismic restraints

Range of Variables

• ground fault protection and detection systems include: ground fault protection (solidly grounded systems), ground fault detection (ungrounded systems, impedance grounded systems, mobile equipment)
• ground fault protection and detection system components include: CTs, VTs, resistors, relays, annunciators (horns, panels), indicators (pilot lights), reset buttons, breakers, interconnecting wiring, ground fault sensors (direct, residual or zero sequence), meters

Range of Variables

• information includes: where and when problem occurred, has problem happened before, is it intermittent or consistent in nature, have any changes recently been made to the system, associated systems or building (painting or removing partitions), utility reconfigurations, latest inspection report, log books, manufacturers’ manuals, standard operating procedures
• facility sources (for information) include: operators, maintenance personnel, supervisors, work order, other trades
• field assessments include: sensory inspections, technical inspections
• diagnostic and test equipment includes: multimeters, voltage testers, ammeters, megohmmeter, non‑contact testers, thermal graphic cameras
• ground fault protection and detection systems include: ground fault protection (solidly grounded systems), ground fault detection (ungrounded systems, impedance grounded systems, mobile equipment)
• ground fault protection and detection system components include: CTs, VTs, resistors, relays, annunciators (horns, panels), indicators (pilot lights), reset buttons, breakers, interconnecting wiring, ground fault sensors (direct, residual or zero sequence), meters

Range of Variables

• ground fault protection and detection systems include: ground fault protection (solidly grounded systems), ground fault detection (ungrounded systems, impedance grounded systems, mobile equipment)
• ground fault protection and detection system components include: CTs, VTs, resistors, relays, annunciators (horns, panels), indicators (pilot lights), reset buttons, breakers, interconnecting wiring, ground fault sensors (direct, residual or zero sequence), meters

Task B-12 Installs and maintains power generating and conversion systems

Task Descriptor

The purpose of generators is to convert kinetic energy into electricity. They can be used when power from the utility is unavailable or the system is isolated from the power grid. DC conversion systems can also be used to convert three-phase AC power to DC power without a prime mover such as 380-volt DC power supplies used in data centres.

For the purpose of this standard, “install” includes both new installations and upgrading of existing systems by removing and replacing components.

For the purpose of this standard, “maintain” includes inspections, preventive/predictive maintenance, troubleshooting, replacing and repairing activities.

Range of Variables

• AC generating systems include: single-phase, three-phase, portable, stationary, manually operated, automatically operated
• AC generating system components include: shaft, armature and stator, bearings, frame, exciter windings, transfer switch, prime mover, cables, conductors, overcurrent devices, overload devices, fuel storage, protection devices, automatic voltage regulator (AVR), governor, isolators, batteries, battery chargers

Range of Variables

• AC generating systems include: single-phase, three-phase, portable, stationary, manually operated, automatically operated
• AC generating system components include: shaft, armature and stator, bearings, frame, exciter windings, transfer switch, prime mover, cables, conductors, overcurrent devices, overload devices, fuel storage, protection devices, AVR, governor, isolators, batteries, battery chargers

Range of Variables

• information includes: where and when problem occurred, has problem happened before, is it intermittent or consistent in nature, have any changes recently been made to the system, associated systems or building (painting or removing partitions), latest inspection report, log books, manufacturers’ manuals, standard operating procedures
• facility sources (for information) include: operators, maintenance personnel, supervisor, work order, other trades
• AC generating systems include: single-phase, three-phase, portable, stationary, manually operated, automatically operated
• field assessments include: sensory inspections, technical inspections, infrared inspections
• diagnostic and test equipment includes: multimeters, voltage testers, ammeters, oscilloscopes, power quality analyzers, hi-pot testers, thermographic imaging devices, phase rotation meters, insulation resistance testers, ground loop testers
• AC generating system components include: shaft, armature and stator, bearings, frame, exciter windings, transfer switch, prime mover, cables, conductors, overcurrent devices, overload devices, fuel storage, protection devices, AVR, governor, isolators, batteries, battery chargers
• maintenance procedures include: cleaning cooling fans, adjusting belt tensioners, lubricating bearings and bushings, cleaning switches, exercising fuel-driven prime movers, examining batteries

Range of Variables

• AC generating systems include: single-phase, three-phase, portable, stationary, manually operated, automatically operated
• AC generating system components include: shaft, armature and stator, bearings, frame, exciter windings, transfer switch, prime mover, cables, conductors, overcurrent devices, overload devices, fuel storage, protection devices, AVR, governor, isolators, batteries, battery chargers

Range of Variables

• DC generating and conversion systems include: portable, stationary, manually operated, automatically operated, two wire, three wire
• DC generating and conversion system components include: transfer switch, brushes and commutators, prime mover, cables, conductors, overcurrent devices, governors, disconnecting means, shaft, armature and stator, bearings, frame, exciter windings, solid state rectifiers, transformers, silicon controlled rectifiers (SCRs), insulated gate bipolar transistors (IGBTs)

Range of Variables

• DC generating and conversion systems include: portable, stationary, manually operated, automatically operated, two wire, three wire
• DC generating and conversion system components include: transfer switch, brushes and commutators, prime mover, cables, conductors, overcurrent devices, governors, disconnecting means, shaft, armature and stator, bearings, frame, exciter windings, solid state rectifiers, transformers, SCRs, IGBTs
• prime mover DC generators include: series, shunt, compound

Range of Variables

• information includes: where and when problem occurred, has problem happened before, is it intermittent or consistent in nature, have any changes recently been made to the system, associated systems or building (painting or removing partitions), latest inspection report, log books, manufacturers’ manuals, standard operating procedures
• facility sources (for information) include: operators, maintenance personnel, supervisors, work order, other trades
• DC generating and conversion systems include: portable, stationary, manually operated, automatically operated, two wire, three wire
• field assessments include: sensory inspections, technical inspections, infrared inspection
• diagnostic and test equipment includes: multimeters, voltage testers, ammeters, hi-pot testers, thermographic imaging devices, insulation resistance testers, ground loop testers
• DC generating and conversion system components include: transfer switch, brushes and commutators, prime mover, cables, conductors, overcurrent devices, governors, disconnecting means, solid state rectifiers, transformers, SCRs, IGBTs
• maintenance procedures include: cleaning cooling fans, adjusting belt tensioners, lubricating bearings and bushings, adjusting and setting brushes, cleaning switches, exercising fuel-driven prime movers, undercutting and dressing commutators, replace rectifiers

Range of Variables

• DC generating and conversion systems include: portable, stationary, manually operated, automatically operated, two wire, three wire
• DC generating and conversion system components include: transfer switch, brushes and commutators, prime mover, cables, conductors, overcurrent devices, governors, shaft, armature and stator, bearings, frame, exciter windings, solid state rectifiers, transformers, SCRs, IGBTs

Task B-13 Installs and maintains renewable energy generating and energy storage systems

Task Descriptor

Renewable energy generating systems can be used as a primary power source or a supplementary source to the utility supply. These systems can also feed energy back to the power grid. For the purpose of this standard, alternative systems are considered non-utility systems. Renewable systems are systems such as solar, fuel cell, wind, tidal or hydrokinetic powered that use renewable sources of energy. Energy storage systems can also be used independently of renewable energy generating systems.

For the purpose of this standard, “install” includes both new installations and upgrading of existing systems by removing and replacing components.

For the purpose of this standard, “maintain” includes inspections, preventive/predictive maintenance, troubleshooting, replacing and repairing activities.

Range of Variables

• renewable energy generating systems include:fuel cells, wind turbines, photovoltaic array, hydrokinetic, hydraulic turbine, geothermal, tidal
• renewable energy generating system connections include: grid dependent, grid independent (stand-alone)
• renewable energy generating system components include: transfer switches, sun-tracking systems, batteries, charge controller, load bank, inverters, isolation disconnects, protection devices
• energy storage system includes: pumped hydro, compressed air energy storage, batteries (various technologies)
• energy storage system components include: transfer switches, inverters, isolation disconnects, controls, battery chargers, protection devices
• fasteners include: screws, straps, inserts, anchors, wedge clamps, seismic restraints

Range of Variables

• renewable energy generating systems include: fuel cells, wind turbines, photovoltaic array, hydrokinetic, hydraulic turbine, geothermal, tidal
• renewable energy generating system connections include: grid dependent, grid independent (stand‑alone)
• renewable energy generating system components include: transfer switches, sun-tracking systems, batteries, charge controller, load bank, inverters, isolation disconnects, protection devices
• energy storage system includes: pumped hydro, compressed air energy storage, batteries (various technologies)
• energy storage system components include: transfer switches, inverters, isolation disconnects, controls, battery chargers, protection devices

Range of Variables

• information includes: where and when problem occurred, has problem happened before, is it intermittent or consistent in nature, have any changes recently been made to the system, associated systems or building (painting or removing partitions), latest inspection report, log books, manufacturers’ manuals, standard operating procedures
• facility sources (for information) include: operators, maintenance personnel, supervisor, work order, other trades
• field assessments include: sensory inspections, technical inspections
• diagnostic and test equipment includes: multimeters, thermographic imaging devices, irradiation meters, tachometers, oscilloscopes, insulation resistance testers
• renewable energy generating systems include: fuel cells, wind turbines, photovoltaic array, hydrokinetic, hydraulic turbine, geothermal, tidal
• renewable energy generating system components include: transfer switches, sun-tracking systems, batteries, charge controller, load bank, inverters, isolation disconnects
• lubrication, cleaning and adjusting procedures include: cleaning fans and filters, adjusting cabinets and door seals, lubricating bearings and bushings, cleaning photovoltaic modules, recalibrating tracking system
• energy storage system includes: pumped hydro, compressed air energy storage, batteries (various technologies)
• energy storage system components include: transfer switches, inverters, isolation disconnects, controls, battery chargers, protection devices

Range of Variables

• renewable energy generating systems include:fuel cells, wind turbines, photovoltaic array, hydrokinetic, hydraulic turbine, geothermal, tidal
• renewable energy generating system components include: transfer switches, sun-tracking systems, batteries, charge controller, load bank, inverters, isolation disconnects
• energy storage system includes: pumped hydro, compressed air energy storage, batteries (various technologies)
• energy storage system components include: transfer switches, inverters, isolation disconnects, controls, battery chargers, protection devices

Task B-14 Installs and maintains high-voltage systems

Task Descriptor

Industrial electricians assemble, install, erect and connect equipment and cables for high voltage applications (voltages above 1 000 V AC or 1 060 V DC) such as switchyards, sub-stations, electrical vaults, electrical equipment rooms and MCCs. They use specific equipment, tests and procedures to ensure the work is performed safely due to the inherent hazards regarding high-voltage systems that can cause property damage, serious injury or death.

For the purpose of this standard, “install” includes both new installations and upgrading of existing systems by removing and replacing components.

For the purpose of this standard, “maintains” includes inspection, troubleshooting, replacing and repairing activities.

Range of Variables

• high-voltage equipment includes: distribution equipment, contactors, motor starters, transformers, MCCs, capacitors, reactors, switches, disconnects, rectifiers, reclosers, VTs, CTs, isolating and load breaking switches, transmission, breakers, protection devices, worker protective grounds, hot sticks
• non-current carrying metallic components include: fences, towers, doors, enclosures, buildings
• testing equipment includes: ground loop impedance tester, megohmmeter, proximity tester, phasing sticks, relay test sets
• commissioning tests include: polarity, ground grid resistance, hi-pot, phasing, functionality, timing, current injection, interlocking, ultrasonic detectors, thermographic equipment
• testing standards include: manufacturer, Institute of Electrical and Electronics Engineers (IEEE), CSA, AHJ, InterNational Electrical Testing Association (NETA)
• documentation includes: as-builts, schematics (AC, DC), drive drawings, shop drawings, single-line drawings

Range of Variables

• high-voltage equipment includes: distribution equipment, contactors, motor starters, transformers, MCCs, capacitors, reactors, switches, disconnects, rectifiers, reclosers, VTs, CTs, isolating and load breaking switches, transmission, breakers, protection devices, worker protective grounds, hot sticks
• documentation includes: as-builts, schematics (AC, DC), shop drawings, single-line drawings
• hazards include: corona discharge, ozone gas, proximity to energized exposed equipment
• commissioning tests include: polarity, ground grid resistance, hi-pot, phasing, functionality, timing, current injection, interlocking, ultrasonic detectors, thermographic imaging device

Range of Variables

• diagnostic and test equipment includes: multimeters, power quality analyzers, hi-pot testers, thermographic imaging devices, ultrasonic audio detectors, insulation resistance testers, ground loop tester, proximity tester, relay test sets
• documentation includes: schematic diagrams and drawings, maintenance schedules, single line diagrams, drawings, as-built drawings
• information includes: where and when problem occurred, has problem happened before, is it intermittent or consistent in nature, have any changes recently been made to the system, associated systems or building (painting or removing partitions), latest inspection report, log books, manufacturers’ manuals, standard operating procedures
• facility sources (for information) include: operators, maintenance personnel, supervisors, work order, other trades
• hazardous insulating mediums include: SF6, polychlorinated biphenyl (PCB)
• field assessments include: sensory inspections, technical inspections

Range of Variables

• high-voltage equipment includes: distribution equipment, contactors, motor starters, transformers, MCCs, capacitors, reactors, switches, disconnects, rectifiers, reclosers, VTs, CTs, isolating and load breaking switches, insulators, transmission, breakers, protection devices, worker protective grounds, hot sticks
• high-voltage cable components include: potheads, stress relief terminations, strapping, bracing, splice kits
• documentation includes: schematic diagrams and drawings, maintenance schedules, single line diagrams, drawings, as-built drawings, manufacturers' specifications
• high-voltage cables include: armoured cables (with or without shielded conductor), TC cable, trailing cables, shielded cables, bus ducts, cable bus
• hazards include: corona discharge, ozone gas, proximity to energized exposed equipment
• temporary protective ground equipment includes:ground clamps and straps, conductors, switchgear ground truck

Task B-15 Installs and maintains transformers

Task Descriptor

Industrial electricians install extra-low, low and high-voltage transformers to condition or change voltage and current values. Common transformer uses include signal control, isolation, power, distribution and transmission. Transformers are part of the distribution system and not the load.

For the purpose of this standard, “install” includes both new installations and upgrading of existing systems by removing and replacing components.

For the purpose of this standard, “maintain” includes inspection, preventive/predictive maintenance, troubleshooting, replacing and repairing activities.

Range of Variables

• documentation includes: schematic diagrams and drawings, maintenance schedules, as-built drawings, manufacturers' specifications

Range of Variables

• extra-low-voltage transformer components include: casings, core, primary and secondary windings, taps

Range of Variables

• information includes: where and when problem occurred, has problem happened before, is it intermittent or consistent in nature, have any changes recently been made to the system, associated systems or building (painting or removing partitions), latest inspection report, log books, manufacturers’ manuals, standard operating procedures
• facility sources (for information) include: operators, maintenance personnel, supervisors, work order, other trades
• field assessments include: sensory inspections, technical inspections
• diagnostic and test equipment includes: multimeters, insulation resistance testers, thermographic imaging devices
• extra-low-voltage transformer components include: casings, core, primary and secondary windings, taps
• cleaning procedures include: removing contaminants
• documentation includes: schematic diagrams and drawings, maintenance schedules, as-built drawings, manufacturers' specifications

Range of Variables

• extra-low-voltage transformer components include: casings, core, primary and secondary windings, taps

Range of Variables

• low-voltage single-phase transformers include: dry-type, dielectric liquid-filled, isolation, step-down, step-up, auto, metering rated transformers
• system requirements include: input/output voltage, polarities, kilovolt-amps (kVA) ratings, conductor size, overcurrent protection, disconnect means
• tests include: insulation test, voltage test, polarity test, turn ratio tests
• documentation includes: schematic diagrams and drawings, maintenance schedules, single line diagrams, as-built drawings, manufacturers' specifications

Range of Variables

• low-voltage single-phase transformers include: dry-type, dielectric liquid-filled, isolation, step-down, step-up, auto, metering rated transformers
• low-voltage single-phase transformer components include: casing and enclosures, core, primary and secondary windings, dielectric liquid, cooling fans, on-line/off-line manual and automatic tap changers

Range of Variables

• information includes: where and when problem occurred, has problem happened before, is it intermittent or consistent in nature, have any changes recently been made to the system, associated systems or building (painting or removing partitions), latest inspection report, log books, manufacturers’ manuals, standard operating procedures
• facility sources (for information) include: operators, maintenance personnel, supervisors, work order, other trades
• low-voltage single-phase transformers include: dry-type, dielectric liquid-filled, isolation, step-down, step-up, auto, metering rated transformers
• field assessments include: sensory inspections, technical inspections, oil sampling
• diagnostic and test equipment includes: multimeters, power quality analyzers, hi-pot testers, thermographic imaging devices, insulation resistance testers, ground loop tester
• low-voltage single-phase transformer components include: casings and enclosures, core, primary and secondary windings, dielectric liquid, cooling fans, on-line/off-line manual and automatic tap changers
• cleaning and adjustment includes: inspecting terminations, cleaning/replacing filters, cleaning cooling fans, vacuuming and cleaning windings
• documentation includes: schematic diagrams and drawings, maintenance schedules, single line diagrams, as-built drawings, manufacturers' specifications

Range of Variables

• low-voltage single-phase transformers include: dry-type, dielectric liquid-filled, isolation, step-down, step-up, auto, metering rated transformers
• low-voltage single-phase transformer components include: casings and enclosures, core, primary and secondary windings, dielectric liquid, cooling fans, on-line/off-line manual and automatic tap changers

Range of Variables

• low-voltage three-phase transformers include: dry-type, dielectric liquid-filled, isolation, step-down, step-up, auto, wye, delta
• system requirements include: input/output voltage, polarities, kVA ratings, conductor size, overcurrent protection, disconnect means
• tests include: insulation test, voltage test, polarity test, turn ratio test, thermographic test
• documentation includes: schematic diagrams and drawings, maintenance schedules, single line diagrams, as-built drawings, manufacturers' specifications

Range of Variables

• low-voltage three-phase transformers include: dry-type, dielectric liquid-filled, isolation, step-down, step-up, auto, wye, delta
• winding configurations include: wye-wye, wye-delta, delta-wye, open-delta, delta-delta, zig-zag, Scott connection
• low-voltage three-phase transformer components include: ventilation fans, casings and enclosures, core, primary and secondary windings, bushings, on-line/off-line manual and automatic tap changers, dielectric liquid

Range of Variables

• diagnostic and test equipment includes: multimeters, power quality analyzers, hi-pot testers, thermographic imaging devices, phase rotation meters, insulation resistance testers, ground loop testers
• cleaning and adjustment procedures include: inspecting terminations, cleaning/replacing filters, cleaning cooling fans, checking external metal case (including external latching system to prevent contamination and access), vacuuming and cleaning windings
• information includes: where and when problem occurred, has problem happened before, is it intermittent or consistent in nature, have any changes recently been made to the system, associated systems or building (painting or removing partitions), latest inspection report, log books, manufacturers’ manuals, standard operating procedures
• facility sources (for information) include: operators, maintenance personnel, supervisors, work order, other trades
• field assessments include: sensory inspections, technical inspections, oil sampling
• low-voltage three-phase transformer components include: ventilation fans, casings and enclosures, core, primary and secondary windings, bushings, on-line/off-line manual and automatic tap changers, dielectric liquid
• documentation includes: schematic diagrams and drawings, maintenance schedules, single line diagrams, as-built drawings, manufacturers' specifications

Range of Variables

• low-voltage three-phase transformers include: dry-type, dielectric liquid-filled, isolation, step-down, step-up, auto, wye, delta
• winding configurations include: wye-wye, wye-delta, delta-wye, open-delta, delta-delta, zig-zag, Scott connection
• low-voltage three-phase transformer components include: ventilation fans, casings and enclosures, core, primary and secondary windings, bushings, on-line/off-line manual and automatic tap changers, dielectric liquid

Range of Variables

• high-voltage transformers include: dielectric liquid-filled, dry
• system requirements include: input/output voltage, polarities, kVA ratings, conductor size, overcurrent protection, impedance, power factor, BIL ratings
• tests include: insulation test, voltage test, hi-pot test, oil analysis test, turn ratio test, thermographic test
• documentation includes: schematic diagrams and drawings, maintenance schedules, single line diagrams, as-built drawings, manufacturers' specifications

Range of Variables

• high-voltage transformers include: dielectric liquid-filled, dry
• winding configurations include: wye-wye, wye-delta, delta-wye, open-delta, delta-delta, zig-zag, Scott connection
• high-voltage transformer components include: oil pumps, ventilation fans, casings and enclosures, core, primary and secondary windings, desiccant breather, bushings, dielectric liquid, indicators (pressure gauges, level gauges, temperature gauges), pressure relief devices, nameplate data, online monitoring systems, on-line/off-line manual and automatic tap changers, phase indicators, cooling fans, conservator tank

Range of Variables

• diagnostic and test equipment includes: multimeters, power quality analyzers, hi-pot testers, thermographic imaging devices, insulation resistance testers, ground loop tester, proximity tester
• cleaning and adjustment procedures include: inspecting terminations, cleaning/replacing filters, cleaning cooling fans, external metal case (including external latching system to prevent contamination and access), cleaning insulators
• information includes: where and when problem occurred, has problem happened before, is it intermittent or consistent in nature, have any changes recently been made to the system, associated systems or building (painting or removing partitions), latest inspection report, log books, manufacturers’ manuals, standard operating procedures
• facility sources (for information) include: operators, maintenance personnel, supervisors, work order, other trades
• field assessments include: sensory inspections, technical inspections, oil sampling
• documentation includes: schematic diagrams and drawings, maintenance schedules, single line diagrams, as-built drawings, manufacturers' specifications

Range of Variables

• high-voltage transformers are: dielectric liquid-filled, dry
• winding configurations include: wye-wye, wye-delta, delta-wye, open-delta, delta-delta, zig-zag, Scott connection
• high-voltage transformer components include: oil pumps, ventilation fans, casings and enclosures, core, primary and secondary windings, desiccant breather, bushings, dielectric liquid, indicators (pressure gauges, level gauges, temperature gauges), pressure relief devices, nameplate data, online monitoring systems, on-line/off-line manual and automatic tap changers, phase indicators, cooling fans, conservator tank

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