Electrical Safety and Compliance for the Condominium Manager
Tracy Jastrow InfraRed Imaging Solutions Inc.
Slide 2
3 Things You Need to Know 1.Electrical Safety is EVERYONES
RESPONSIBILITY 2.Electrical Safety is PREDICTABLE 3.Electrical
Accidents are PREVENTABLE InfraRed Imaging Solutions Inc.
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SAFETY - RELATED WORK PRACTICES Responsibility:
Employer/Employee: Employer/Employee: The employer must communicate
to workers the safety related work practices required and the
employee must implement those work practices InfraRed Imaging
Solutions Inc. CSA Z462-12 WORKPLACE ELECTRICAL SAFETY
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SAFETY - RELATED WORK PRACTICES Responsibility: Host Employer:
Host Employer: The host employer must inform contract employers of
any hazards related to the work being performed and share any
information about their installation that the contract employer
needs to make the required safety related assessments. The host
employer is also responsible for reporting any worker violations to
the contract employer. InfraRed Imaging Solutions Inc. CSA Z462-12
WORKPLACE ELECTRICAL SAFETY
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SAFETY - RELATED WORK PRACTICES Responsibility: Contract
Employer: Contract Employer: The contract employer must ensure that
any information about these hazards are relayed from the host
employer to the their workers, and ensure that their workers follow
the work practices required by the standards AND any safety related
work rules required by the HOST employer. InfraRed Imaging
Solutions Inc. CSA Z462-12 WORKPLACE ELECTRICAL SAFETY
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The contract employer shall advise the host employer of: (a)
any unique hazards presented by the contract employers work; (b)
any unanticipated hazards found during the contract employers work
that the host employer did not mention; and (c) the measures the
contractor took to correct any violations reported by the host
employer under Clause 4.1.5.1.2 and to prevent such violations from
recurring. InfraRed Imaging Solutions Inc.
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Proactive Safety Measures Infrared Inspections Arc Flash Study
High Voltage/Substation Maintenance InfraRed Imaging Solutions
Inc.
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INFRARED THERMOGRAPHY
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Beginnings of Electrical Fire 1600 Amp Bolt-Lock SwitchHigh
Priority Fault Visible signs of burning across B and C phases due
to arcing. Isolate and Replace all fuses InfraRed Imaging Solutions
Inc.
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Fuse Panels Improper load balance, poor connection, or bad
fuses can cause overheating Improper load balance, poor connection,
or bad fuses can cause overheating InfraRed Imaging Solutions
Inc.
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Starter InfraRed Imaging Solutions Inc.
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Critical Fault Junction Box 14 th floor (spot temp = 149C) Heat
migrating through bus riser Visible signs of melting plastic and
metal InfraRed Imaging Solutions Inc.
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Critical Fault Heat from Junction Box migrating thru Bus Riser
12 floor InfraRed Imaging Solutions Inc.
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Main Breaker Fuse Barrels InfraRed Imaging Solutions Inc.
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HVAC Motors Thermal Variance across Motor Windings Recommended
to perform vibration analysis InfraRed Imaging Solutions Inc.
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Return on Investment Typical costs to repair prior to failure :
repair after failure 1:7 Predict and Prevent production down time
Health and Safety Tenants, Workers Energy savings and reduced
carbon footprint InfraRed Imaging Solutions Inc.
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Electrical Energy Savings When load demands more power than
rating; excess power converted to heat A 40 degree delta on one
3-phase/30Amp transformer will result in a min. 13% rise in
consumption MULTIPLY :Typical plant will save thousands yearly on
energy alone InfraRed Imaging Solutions Inc.
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Predictive to Preventive Predictive Maintenance (PdM) utilizes
non- destructive testing methods to evaluate the working condition
(while online) of various types of equipment and systems in order
to predict the most cost-effective maintenance schedule Preventive
maintenance (PM) scheduled, planned maintenance procedures are
followed in order to keep equipment working efficiently and/or
extend the life of equipment using both preventive and corrective
(repair) measures. InfraRed Imaging Solutions Inc.
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Electrical Preventive Maintenance Structure or Metal Clad
Switchgear High Voltage, Air Circuit Breakers and Disconnect
Switches High Voltage Relays High Voltage Power Transformers Low
Voltage Circuit Breakers, Fused Disconnect Switches and Enclosures
InfraRed Imaging Solutions Inc.
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Low Voltage Preventive Maintenance Inspect, clean and lubricate
all breakers, FDS and enclosures Inspect all for signs of
overheating Inspect main arcing contacts and arc shutes Measure
contact resistance Inspect, clean and test all tripping devices
Verify associated meters (ground fault, voltmeter ammeter) Vacuum
and clean breakers/switch compartment InfraRed Imaging Solutions
Inc.
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Transformer Preventive Maintenance Two 45 KVA open wound
dry-type transformers InfraRed Imaging Solutions Inc.
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Transformers 1: low-voltage bus 2: clamp bolts 3: high voltage
bus 4: core 5: high voltage winding 6: tap 7: tap terminals 8:
transformer base 9: lifting channels 10: lifting channels 11: air
channel 12: high voltage winding conductors 13: low voltage
conductors InfraRed Imaging Solutions Inc.
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Transformer Failure Cause of Failures Electrical
Disturbances29.43% Lightning17.32% Insulation Issues9.80%
Electrical connections, loose or high resistance 7.38% Maintenance
Issues5.91% Moisture4.03% Overload2.01% Sabotage2.01% Other1.24%
The leading cause of transformer failures is line disturbance. This
includes switching surges, voltage spikes, line faults/flashovers,
and abnormalities but not lightning. *20 year study conducted by
Hartford Steam Boiler Inspection and Insurance Co. InfraRed Imaging
Solutions Inc.
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Electrically Induced Factors Operation under transient or
sustained over-voltage conditions Exposure to lightning surges or
switching surges Partial Discharge (Corona) Video LinkVideo Link
Static Electrification InfraRed Imaging Solutions Inc.
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Flashover across glass fog type Insulators InfraRed Imaging
Solutions Inc.
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Mechanically Induced Factors Hoop buckling of the innermost
winding (image) Conductor tipping Conductor telescoping Spiral
tightening End-ring crushing Failure of the coil clamping system
Displacement of incoming and outgoing leads InfraRed Imaging
Solutions Inc.
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Thermally Induced Factors Overloading of transformer beyond its
capacity for extended periods Failure of cooling system, including
blocking or fouling of radiators or coolers, failure of oil pumps
and/or failure of a directed flow oil distribution system Blockage
of axial oil duct spaces, limiting cooling oil distribution to
windings Operating in an overexcited condition (over-voltage or
under-frequency) Operation under excessive ambient temperature
conditions InfraRed Imaging Solutions Inc.
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Overloaded Transformer Arc Flash InfraRed Imaging Solutions
Inc.
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Arc Flash Safety InfraRed Imaging Solutions Inc. Roles and
Responsibility Cause of Arc Flash Electrical Systems Analysis
Boundaries Personal Protective Equipment in relationship to Arc
Flash Labeling of electrical equipment for Arc Flash Rating and PPE
requirements
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What is Arc Flash? InfraRed Imaging Solutions Inc.
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What Causes Arc Flash? Dust and impurities Corrosion
Condensation of water on insulating material Spark discharge
Accidental touching, dropping tools Improperly maintained
electrical meters Over-voltages across narrow gaps Failure to
insulate material Improperly designed or utilized equipment
Improper work procedures. human error InfraRed Imaging Solutions
Inc.
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Everyone is Responsible The Host Employer: Determine all
possible sources of electrical supply to specific equipment Provide
training in electrical and arc flash hazards and protection (PPE)
Conduct an arc flash analysis of the work place Establish shock and
arc flash protection boundaries Place appropriate warning labels on
equipment InfraRed Imaging Solutions Inc.
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Labelling
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Protecting Workers IR Windows Every time a panel is open to
live equipment there is a chance of arc flash due to unseen
circumstances. IR windows allow workers and/or thermographers to
inspect from outside the panel. InfraRed Imaging Solutions
Inc.
Slide 35
Resources CSA, for Canadian Electrical Code, Arc Flash safety
standards etc. visit www.csa.cawww.csa.ca Electrical Safety
Authority, report an incident, find a licensed contractor
www.esasafe.comwww.esasafe.com Toronto Hydro,
www.torontohydro.comwww.torontohydro.com Enersource (Mississauga
Hydro), www.enersource.com www.enersource.com OPA, Ontario Power
Authority, www.powerauthority.on.ca www.powerauthority.on.ca
InfraRed Imaging Solutions Inc.