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23,000 students trained since 1980 Electrical maintenance, troubleshooting and safety courses Safety programs, procedures and arc flash studies Leadership and Management training
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WHAT IS CSA Z463? Provides guidance on: The application of safety management systems 1. CSA Z460 Control of Hazardous Energy 2. CSA Z462 Arc Flash Hazard The selection of reference standards and maintenance procedures The assessment of electrical equipment to verify correct function Provide an increased level of safety for electrical workers 3
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WHY HAS CSA Z463 BEEN CREATED? To help address the ongoing concerns regarding the impact of maintenance neglect on worker’s safety To define the difference between maintenance on equipment critical for worker safety versus those critical for production CSA Z463 will complement CSA Z462 and CSA Z460 4
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LACK OF MAINTENANCE Results in: Higher risk to all workers Loss of production High repair costs Loss of business Loss of market share Total loss is possible
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WHY IS MAINTENANCE CRITICAL? Unexpected failure while in service or during operation Worker safety as protective equipment operating times can increase causing unexpected high arc flash levels Extreme equipment damage and downtime 6
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7 Maintaining speed of protective device operation reduces arc flash hazard levels Calculated: 5.7 Cal/cm 2 Actual: 94.9 Cal/cm 2 A safe situation becomes extremely dangerous in a very short period of time. A difference of milliseconds can be disastrous! MAINTAINING CALCULATED ARC FLASH HAZARD LEVELS.
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Maintenance Statistics NETA Survey 23% of breakers do not follow their designed operating characteristics 10.5% of circuit breakers do not operate at all 8
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MOTOR STARTER FAILURE Failure of the switchgear was caused to a fault in the feeder system. The protective relay system was not operating.
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TRANSFORMER WINDING Multiple turn to turn faults caused by insulation decay due to highly acidic oil.
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SWITCHGEAR FIRE Failure of the switchgear was caused low insulation resistance of the main bus support insulators. The cause was the build up of corona.
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SWITCHGEAR EXPLOSION Result of water leaking in.
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CABLE FAILURE Corona buildup on stress cone terminations
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CIRCUIT BREAKER FAILURE The contacts of this breaker eventually failed as a result of high contact resistance. The ensuing fire cause severe damage to the switchgear and a power failure to the plant.
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CSA Z463 will provide: Guidance and Measurement to Industry Government Stakeholders 15
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MAINTENANCE STRATEGY System limitations and needs Life span Mean Time To Failure (MTTF) Equipment is designed to operate for a defined number of cycles or operations, meaning planned obsolescence The design life makes periodic maintenance necessary
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STRATEGY CONSIDERATION What are the functions and performance standards of the asset How does it fail to fulfill the intended function What are the causes of each functional failure What is the effect of each functional failure In what way does each functional failure affect operability What can be done to predict each failure What are the alternatives if suitable maintenance can not be performed
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REFERENCED MAINTENANCE PROGRAMS 18 Reactive/Corrective/Breakdown/RTF Preventive: Time Based Predictive: Condition Based Reliability Centered: Function Based Risk Based
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LawsStandards & Guidelines Company Internal Responsibilities Hazard Identification & Control Tasks at hand Isolation lock out & Verification THE SAFETY PYRAMID
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Licensed ElectricianSupervised ApprenticeSupplier Certified Technicians Electrical Safety Training on Series Air Field Circuits (40 Hours) Airfield Lighting Operation and Maintenance Airfield Lighting Regulator Course Arc Flash Safety TrainingLock Out Tag Out Training WORKER QUALIFICATIONS
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Safe Work EnvironmentSchedule with Air Operations Do Not Work on Live Equipment Alone Follow LOTO ProceduresProper Clear CommunicationsBreaking Series Circuits Handling Energized Conductors and Components Re-Lamping While Power Is On SAFETY CONSIDERATIONS
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Operating Conditions Age and General Condition Environmental Conditions Importance to the System MAINTENANCE CONSIDERATIONS
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AIRFIELD LIGHTING CSA Z463 Section9.18 Annex N
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SERIES & PARALLEL CONDUCTORS Insulation resistance test @ 5000 Vdc Tests Results: Circuit Length (m)Recommended Minimum Insulation Resistance Mohms <3300m50 3330-6660m40 >6600m30
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EDGE LIGHTS Daily-Check for lights out Monthly-Check alignment Semi Annual- check elevation, moisture penetration, gaskets and seals, corrosion and peeling paint Annual- check for cracking of fixture, corrosion and shorts CSA Z463 section 9.18.5.3 covers specific maintenance procedures for a) Lamp replacement b) Spare unit replacement c) Cleaning d) Cleaning Schedule e) Moisture f) Strikes and blast damage g) Frangible couplings h) Scheduled painting
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APPROACH LIGHTS Daily- Intensity, burned out lamps and alignment Monthly- Alignment Semi-annual- check alignment, terminal blocks and relays CSA Z463 section 9.18.6.3 covers specific maintenance procedures for a) Steady burning fixtures b) Flashing Fixtures c) Towers and poles
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INSET LIGHTS Weekly- Replace defective lights Monthly- Cleaning and intensity Semi-monthly- check torque of mounting bolts Semi-annual- Full cleaning and service CSA Z463 section 9.18.7.3 covers specific maintenance procedures for a) Light removal b) Cleaning c) Film disc cut-outs d) Light aiming e) Light cleaning and sealing f) Reinstallation g) Water Removal
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PAPI Daily- Replace burned out or darkened bulbs Monthly- Test controls, clean lamps/filters, visual inspection for defects, alignment, evidence of rodents CSA Z463 section 9.18.8.3 covers specific maintenance procedures for a) Aiming
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REGULATORS Semi-annual- Inspect all power and control connections Visual inspection Clean as required Verify all seals and gaskets Annual- Verify all seals and gaskets CSA Z463 Table M17 covers specific maintenance procedures
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OTHER SYSTEMS Wind Direction 9.18.13 Approach Lights 9.18.9Guidance Signs 9.18.10 Beacons 9.18.12 Guard Lights 9.18.14 Obstruction Lights 9.18.11
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REFERENCE TABLES CSA Z463 SectionReference Topic Table N1Insulation Resistance Table N2Test Voltage Table N3Runway, Taxiway, Inset Light Table N4Approach Lights Table N5Aerodrome Beacons Table N6PAPI systems Table N7Approach Lights Table N8Inspection & Maintenance Schedule Table M17Regulating Equipment
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