Draft Details
- Maintenance of electrical systems (New Edition...
- DRAFT STANDARD
- Legal Notice for Draft Standards
- + 0 Introduction
- 0.1 Purpose and application
- + 0.2 Organization of this Standard
- Figure 1
- + 1 Scope
- 1.1 General
- 1.2 Purpose
- 1.3 Application
- 1.4 Measurements
- 1.5 Terminology
- + 3 Definitions and abbreviations
- 3.1 Definitions
- 3.2 Abbreviations and acronyms
- + 4 Electrical maintenance program
- 4.1 General
- 4.2 Management commitment
- 4.3 Electrical equipment asset management
- 4.4 Electrical system design
- + 4.5 Risk management
- 4.5.1 General
- 4.5.2 Hierarchy of risk control methods
- + 5 Electrical maintenance as part of workplace s...
- 5.1 General
- + 5.2 Integration of safety within an electrical ...
- 5.2.1 Safety strategies
- 5.2.2 Elements of safety
- 5.2.3 Management responsibility for worker safe...
- 5.2.4 Referenced codes and standards
- + 5.2.5 Electrical equipment and systems to be ma...
- 5.2.5.1 General
- 5.2.5.2 Electrical protective devices
- 5.2.5.3 Switching and isolating equipment
- 5.2.5.4 Electrical power distribution equipment...
- 5.2.6 Electrical equipment safety inspections, ...
- 5.2.7 Resources and support requirements
- 5.2.8 Electrical maintenance plan
- + 5.3 Hazard identification, risk assessment, and...
- 5.3.1 General requirements
- 5.3.2 Hazard identification
- + 5.3.3 Risk assessment for electrical equipment ...
- 5.3.3.1 General
- 5.3.3.2 Probability of equipment failure
- 5.3.3.3 Severity
- 5.3.3.4 Residual risk
- 5.3.3.5 Risk reduction
- 5.3.4 Age of equipment
- 5.3.5 Electrical protective devices
- 5.3.6 Grounding and bonding
- 5.3.7 Concurrent work
- 5.3.8 Maintenance activities performed at heigh...
- 5.3.9 Maintenance activities performed in confi...
- + 5.3.10 Risk assessment process
- 5.3.10.1 Establishment of the risk assessment p...
- 5.3.10.2 Development of the risk assessment pro...
- 5.3.11 Risk assessment methodology and safety i...
- + 5.4 Tools and test equipment safety performance...
- 5.4.1 Selection of tools and protective equipme...
- 5.4.2 Test instruments and test equipment
- + 5.5 Electrical emergency preparedness
- 5.5.1 General
- 5.5.2 Electrical emergency systems and associat...
- 5.5.3 Duties and responsibilities in an ERP
- 5.5.4 Maintenance of electrical emergency equip...
- 5.5.5 Emergency shutdown of facility electrical...
- 5.5.6 Electrical actions, repairs, and restorat...
- 5.5.7 Fire protection for electrical rooms and ...
- 5.5.8 Maintenance of equipment for electrical e...
- + 5.6 Hazardous locations
- 5.6.1 General
- 5.6.2 Area classification
- 5.6.3 Equipment and systems
- 5.6.4 Maintenance of equipment
- 5.6.5 Maintenance and inspection
- 5.6.6 Periodic hazardous location inspections
- + 5.6.7 Removal of power sources — Procedures for...
- 5.6.7.1 Workers’ responsibilities
- 5.6.7.2 Owner’s responsibilities
- 5.6.7.3 Care for flame paths
- 5.6.7.4 Equipment cover bolts and screws
- 5.6.7.5 Cleanliness of equipment
- 5.6.7.6 Products of corrosion
- 5.6.7.7 Portable cables and electrical equipmen...
- + 6 Electrical maintenance program strategies
- + 6.1 Introduction
- 6.1.1 General
- 6.1.2 Selecting a maintenance strategy
- + 6.2 Maintenance strategies
- 6.2.1 General
- + 6.3 Design of an electrical maintenance program...
- 6.3.1 General
- 6.3.2 Technical review of the electrical mainte...
- 6.3.3 Normal operating envelope
- 6.3.4 Selection of maintenance strategies based...
- 6.3.5 Consideration of environmental conditions...
- 6.4 Electrical maintenance program roles and re...
- + 6.5 Identification of assets
- + 6.5.1 Criticality of assets
- 6.5.1.1 Assessment of equipment and maintenance...
- 6.5.1.2 Selection criteria for critical equipme...
- + 6.5.2 Identifying functional failures
- 6.5.2.1 General
- 6.5.2.2 Identifying and evaluating (categorizin...
- 6.5.2.3 Identifying failure modes
- 6.5.3 Identifying maintenance tasks based on cr...
- 6.5.4 Resource Allocation for performing mainte...
- + 6.6 Identification of spare parts inventory met...
- 6.6.1 General
- 6.6.2 Spare inventory management
- 6.6.3 Issues related to spare parts inventory
- 6.6.4 Organization’s perspective
- 6.6.5 Developing effective inventory management...
- 6.6.6 Spare parts inventory cost reduction
- + 6.7 Baseline reference as part of an electrical...
- 6.7.1 FAT
- 6.7.2 SAT
- 6.7.3 Commissioning process
- 6.7.4 End-of-warranty testing
- + 6.8 Analysis of inspection, testing, and failur...
- 6.8.1 General
- 6.8.2 Analysis of PM results
- 6.8.3 Analysis of PdM results
- 6.9 Equipment condition index
- 6.10 Analysis of failure results — RCA
- 6.11 EOL assessment
- + 6.12 Documentation and record keeping
- 6.12.1 General
- 6.12.2 Critical document list and method of con...
- 6.12.3 Power system studies and single line dia...
- 6.12.4 Equipment specification data sheets
- 6.12.5 Documentation of baseline testing, commi...
- 6.12.6 Documentation of protective device setti...
- 6.13 Approaches to performance management
- 6.14 Program audits
- + 7 General maintenance practices
- 7.1 General
- 7.2 Overview of equipment maintenance practices...
- + 7.3 Planning a maintenance shutdown
- 7.3.1 General
- 7.3.2 Considerations for planning and execution...
- + 7.4 Periodic inspections and testing
- 7.4.1 General
- 7.4.2 Routine periodic inspections
- 7.4.3 Periodic inspections with equipment onlin...
- 7.4.4 Periodic inspections with equipment off-l...
- + 7.5 Online CBM diagnostics
- 7.5.1 Visual inspections
- 7.5.2 Infrared scanning and thermography
- 7.5.3 Acoustic and ultrasound inspection
- 7.5.4 Corona imaging
- 7.5.5 Partial discharge
- 7.5.6 Insulating liquid analysis
- 7.5.7 Vibration analysis
- 7.5.8 Motor current signature analysis (start-u...
- 7.5.9 Tan-delta testing (power factor)
- 7.5.10 Battery condition monitoring
- + 7.6 Off-line maintenance diagnostics
- 7.6.1 General
- 7.6.2 Frequency of off-line maintenance diagnos...
- 7.6.3 Off-line maintenance diagnostics techniqu...
- + 7.6.4 Electrical tests
- 7.6.4.1 General
- 7.6.4.2 Insulation testing
- 7.6.4.3 Overpotential test
- 7.6.4.4 Protective device test
- 7.6.4.5 Contact resistance test
- 7.6.4.6 Circuit breaker time travel analysis
- 7.6.4.7 Grounding resistance testing
- 7.6.4.8 Primary and Secondary injection testing...
- 7.6.4.9 Mechanical tests
- 7.7 Test equipment
- 7.8 Specialized cleaning
- + 7.9 Energization of electrical equipment and sy...
- 7.9.1 General
- 7.9.2 Newly-installed electrical equipment
- 7.9.3 Assessment of fitness to energize
- 7.9.4 Authorization to energize
- 7.9.5 Returning electrical equipment to service...
- 7.9.6 Periods of extended disuse
- 7.10 Documentation and records
- + 7.11 Equipment labelling
- 7.11.1 Arc flash and shock equipment labels
- 7.11.2 Test decals
- 7.12 Reconditioned and refurbished equipment
- + 8 Equipment-specific maintenance practices
- 8.1 Introduction
- + 8.2 Equipment-specific maintenance tests
- 8.2.1 Power distribution switchgear and panel b...
- + 8.2.2 Transformers
- + 8.2.2.1 Liquid-filled power transformers
- 8.2.2.1.1 Tasks to be performed while in servic...
- 8.2.2.1.2 Tasks to be performed offline
- + 8.2.2.2 Dry-type power transformers
- 8.2.2.2.1 Tasks to be performed while in servic...
- 8.2.2.2.2 Tasks to be performed offline
- 8.2.3 Reactors
- 8.2.4 Power cables
- 8.2.5 Metal-enclosed busways
- 8.2.6 Disconnect (isolation or load-break) swit...
- + 8.2.7 Circuit breakers
- 8.2.7.1 General
- 8.2.7.2 Circuit breakers — Insulated case and m...
- 8.2.7.3 Circuit breakers — Low-voltage power ci...
- 8.2.7.4 Circuit breakers — Medium-voltage power...
- 8.2.7.5 Circuit breakers — High-voltage circuit...
- 8.2.8 Protection, control, and metering devices...
- + 8.2.9 Instrument transformers
- 8.2.9.1 General
- 8.2.9.2 Instrument transformers — CTs
- 8.2.9.3 Instrument transformers — VTs
- 8.2.9.4 Instrument transformers — Coupling-capa...
- 8.2.10 Grounding and bonding systems
- 8.2.11 Ground fault protection systems
- + 8.2.12 Rotating machines
- 8.2.12.1 General
- 8.2.12.2 Motors
- 8.2.12.3 Generators
- 8.2.13 Motor control centres (MCC)
- 8.2.14 Medium-voltage motor starters
- 8.2.15 Adjustable speed drives (ASD)
- 8.2.16 DC battery systems
- 8.2.17 Surge arrestors
- 8.2.18 Capacitors
- 8.2.19 Outdoor bus structures
- 8.2.20 Emergency systems — Engine generators
- 8.2.21 Emergency systems — Uninterruptible Powe...
- 8.2.22 Emergency systems — Automatic Transfer S...
- 8.2.23 Communication systems
- 8.2.24 Fiber optic cable
- 8.2.25 Charging equipment
- 8.2.26 Overhead power lines
- 8.2.30 Lighting, signs, and outline lighting
- 8.3 Bolted connections
- + 9 Specialized equipment maintenance
- 9.1 General
- 9.2 Automation and control systems
- 9.3 Alarms, signals, and annunciator systems
- 9.4 Public address and mass notification system...
- 9.5 Telecommunication, radio, and television to...
- 9.7 Surveillance and security systems
- 9.7 Fire alarm and fire detection systems
- 9.8 Fire pumps
- + 9.9 Metallic floodlighting and high mast floodl...
- 9.9.1
- 9.9.2
- 9.9.3
- 9.10 Emergency lighting
- 9.11 Cathodic protection
- 9.12 EHT
- 9.13 Cranes, hoists, and temporary elevators
- 9.14 Elevators, material lifts, and moving walk...
- + 9.15 Passenger ropeways (ski lifts) and similar...
- 9.15.1 General
- 9.15.2 Safety
- 9.15.3 Major power components
- 9.15.4 Control systems
- 9.15.5 Grounding and bonding systems
- 9.15.6 Other
- 9.16 Lightning protection
- 9.17 Ports and marinas
- + 9.18 Traction Electrification
- 9.18.1 General
- 9.18.2 Overhead contact systems
- + 9.19 Solar PV systems
- 9.19.1 General
- 9.19.2 PV modules, panels, and arrays
- 9.19.3 PV inverters
- 9.19.4 PV combiner boxes
- 9.19.5 Batteries
- 9.19.6 Charge Controllers
- 9.19.7 Wiring and connections
- 9.19.8 Frames
- + 9.20 Wind generation systems
- 9.20.1 General
- 9.20.2 Safety
- 9.20.3 Power distribution and major components
- 9.20.4 Control systems
- 9.20.5 Grounding and bonding systems
- 9.21 Hydrokinetic systems
- 9.22 Electric vehicle charging system
- 9.23 Energy Storage System
- + 10 Aeronautical ground lighting (AGL) systems
- 10.1 General
- + 10.2 Electrical systems
- Table 4
- + 10.3 AGL system maintenance
- 10.3.1.1
- 10.3.1.2
- 10.3.1.3
- 10.4 Tolerances
- 10.5 Elevated edge lighting (runway, taxiway, a...
- 10.6 High-intensity approach lighting
- 10.7 Inset light units (LED and quartz halogen)...
- 10.8 Precision approach path indicator (PAPI) s...
- 10.9 Flasher-type approach lights — Inspection ...
- 10.10 Airside guidance signs — Inspection and m...
- 10.11 Aeronautical hazard beacons and obstructi...
- 10.12 Aerodrome beacons (rotating type) — Inspe...
- 10.13 Illuminated wind direction indicators — I...
- 10.14 Runway guard lights (RGLs) — Inspection a...
- 10.15 Constant current regulators
- + 10.16 Series circuit selector switches
- 10.16.2 Inspection and maintenance activity sch...
- 10.17 Series and parallel (voltage) circuit con...
- + 10.18 ARCAL
- 10.18.1 General
- 10.18.2 Inspection and maintenance activity sch...
- + 11 Mining operations (under development)
- 11.1 General
- 11.2 Flameproof gaps
- 11.3 Cable couplers
- 11.4 Junction boxes
- 11.5 Test plugs
- 11.6 Live line indicator
- 11.7 Contactors – Switchgear
- 11.8 FLP switchgear
- 11.9 Industrial air circuit breaker switchgear
- 11.10 Vacuum contactor
- 11.11 FLP oil-immersed contactor
- 11.12 Industrial oil immersed contactor
- 11.13 Liquid controllers
- 11.14 Air-break circuit breakers, section switc...
- 11.15 Switch pillar
- 11.16 Potential transformer
- 11.17 High-tension starter (vacuum type)
- 11.18 Isolators
- + 11.19 Transformers
- 11.19.1 Transformer (static)
- 11.19.2 Transformer mobile air cooled
- 11.19.3 Lighting transformers
- 11.19.4 Signalling transformers
- 11.20 Capacitors
- 11.21 Haulage signals (radio signals)
- 11.22 Communications
- 11.23 Coal face and stage loader signalling sys...
- 11.24 Personnel conveyor protection equipment
- 11.25 Personnel hauling — protective devices
- 11.26 Mine fan instrumentation
- 11.27 Smoke detectors
- 11.28 Transfer point equipment
- 11.29 Booster fan instrumentation/position
- 11.30 BM3 methane monitor
- 11.31 High-concentration methane monitor
- 11.32 BA2/BA4 air velocity monitors
- 11.33 Main surface switchboard – HT feeders
- 11.34 Coal face lighting
- 11.35 Roadway lighting
- 11.36 Laser high-intensity light sources
- 11.37 Locomotive battery and charging units
- 11.38 Locomotive lighting
- 11.39 Power loaders, coal cutters, slushers, an...
- 11.40 Bunkers
- 11.41 Drilling machines
- 11.42 Hydraulic power packs
- 11.43 Roadway heading machines
- 11.44 Roadway machines
- 11.45 Machines, continuous miner, loader, shutt...
- 11.46 Shearers
- 11.47 Auxiliary fans (direct drive)
- 11.48 Portable haulages
- 11.49 Thruster and solenoid brakes
- 11.50 Trump iron magnets, vibratory feeders, an...
- 11.51 Photo-Electric Cell Equipment
- + Annex A (informative)
- A.1 General
- A.2 Executive summary
- A.3 Identifying problems with the current appro...
- A.4 Proposing solutions
- A.5 Documenting the financial implications of a...
- A.6 Summarizing the business case
- A.7 Supporting materials
- A.8 FM Global statistics
- B.1 General
- B.2 Asset registers
- B.3 Work orders
- B.4 PM and inspection
- B.5 Inventory
- B.6 List of suppliers, vendors, and POs
- B.7 Reports
- + Annex C (informative)
- D.1 Time-current curves
- D.2 Protective device coordination
- + D.3 Arc flash
- D.3.1
- + D.3.2
- Figure D.1
- Figure D.2
- F.1 Introduction
- F.2 Advantages of FMEA/FMECA
- F.3 When to do FMEA/FMECA
- + F.4 Worksheets for FMEA/FMECA
- + F.4.1 General
- Table F.1
- F.4.2
- F.4.3
- F.4.4
- F.4.5
- F.4.6
- F.4.7
- F.4.8
- G.1 General
- G.2 Categories of spare parts
- G.3 Low-cost spare parts in common use
- G.4 High-cost spare parts less frequently in de...
- G.5
- Annex J (informative)
- + Annex K (informative)
- + K.1 Winding insulation
- K.1.1 Phase output
- K.1.2 Neutral outputs
- + K.1.3 Auxiliary equipment
- K.1.3.1
- K.1.3.2
- + K.1.4 Preliminary measurements
- K.1.4.1 Winding temperature
- K.1.4.2 Winding capacity
- + K.2 Execution of tests
- + K.2.1 Measuring the PI
- K.2.1.1
- K.2.1.2
- + K.2.2 DC voltage gradual rise (ϕ/ϕ)
- K.2.2.1
- K.2.2.2
- L.1
- Table N.1
- Annex P (informative)
- Annex Q (informative)
1.1 General
This Standard specifies requirements for the maintenance of electrical equipment and systems.
This Standard applies to new and existing electrical equipment. For new installations of electrical equipment, this Standard can be applied during the early design stages to allow for the implementation of proactive electrical maintenance practices and maintenance safety.
1.2 Purpose
The purpose of this Standard is to facilitate the safe, reliable, and cost-effective operation of electrical equipment and systems through the application of consistent maintenance practices.
The requirements of this Standard are intended to address worker and public safety as a primary objective and the protection of property and the environment as secondary objectives.
1.3 Application
This Standard does not apply to maintenance of electrical and communications supply equipment and systems owned by electric and communication utilities. These requirements are covered by C22.3 No.11.
1.4 Measurements
The values given in SI units are the units of record for the purposes of this Standard. The values given in parentheses are for information and comparison only.
1.5 Terminology
In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the Standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the Standard.
Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.
Notes to tables and figures are considered part of the table or figure and may be written as requirements.
Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.
This standard refers to the following publications, and where such reference is made, it is to the edition,
You may comment on any section of this document by clicking the “Submit Comment” link at the bottom of the relevant section.