CHOLAMANDALAM MS RISK SERVICES LTD.

www.cholarisk.com

Manage Risks Profitably

ELECTRICAL SAFETY AUDIT

WHY ELECTRICAL SAFETY AUDITS

• As Per FPA, UK & NFPA, US, 25% Of fires Are Due to Electrical Installations.

• Indian Scenario- 40% fires due to Electrical Causes

• 8 % Fatalities in Indian Factories Are Due to Electrical Causes

STATUTORY REQUIREMENT

Indian Electricity Rule # 29(1) “All Electric Supply Lines & Apparatus Shall be of Sufficient Ratings for

Power, Insulation and Estimated Fault current and of Sufficient Mechanical Strength, for the Duty Which They May Be Required to Perform Under The Environmental Conditions of Installation, and Shall be Constructed, Installed Worked and Maintained in Such a Manner so as to Ensure Safety of Human Beings, Animals and Property”.

(2) “The Relevant Code of Practice or the BIS If any may be followed to carry out the purpose of this Rule and in the Event of any Inconsistency, the provision of this Rule Will Prevail”.

ELECTRICAL RISK MANAGEMENT SERVICES

SUBJECTIVE EVALUATION OBJECTIVE EVALUATION

• Physical Inspection

•Statutory Compliance

•Operations Review

• Equipment Lay out

• Earth Resistance Tests

•Hotspot Measurement

•IR Measurement

•Overload Detection

•Thermography Surveys (Tie-Up with NPC)

PPEB

POWER CONTROL CENTRE

TRANSFORMER

LOAD DISTRIBUTION EQUIPMENT

CRITICAL LOAD

SAMPLE TESTS

• Earth Resistance

• Insulation Resistance

• Hotspot Detection

• Load Current Measurements

HOTSPOT DETECTION

“All electrical failures are preceded by abnormal temperature and sound”

Infra-Red Laser Guided Hot Spot Detection

(Available with CMSRSL)

Ultra-Sound Detector

ELECTRICAL HOTSPOT DETECTION EQUIPMENT

ELECTRICAL SAFETY AUDIT MAJOR FINDINGS

• Elevation of buildings & structures-not considered for LP design

• Protection relays- deviation from original design settings

• RCCBs- wrong sensitivity,bypassing & location

• Earth continuity- not tested

• Use of ordinary copper wire in fuses

• Statutory violations

FINDINGS….• EPM system- heavy slippage in implementation

• Electrical accident investigation- Root cause rectification exercise not carried out

• LHS cable ineffective installation practice

• Passive fire protection inadequacies

• Hotspots in LDB due to unequal load balancing

• No updated reference drawing

• Wrong earth pit identification

• Flameproof Equipment maintenance

• Tracking problem in MCCs due to dust deposits

FINDINGS….

• OLTC- counter meter readings not taken

• Cables added w/o considering derating factors

• Insufficient baffle wall height between transformers

• Wrong OTI/WTI Setting

• Wrong feeder identification

FOCUSSED ERM REVIEWS

• IER Compliance• Lightning Protection• ESD Hazards• Shocks & Fires• Protection Devices• Hotspot Detection• Thermography

Surveys

• Hazardous Area Classification, review of special equipment

• Earthing• Tests (IR, E, O/L)• EPM• Equipment Layout• Cable Size Adequacy• Fire Protection (Active &

Passive)

SOFTWARE AVAILABLE WITH CMSRSL

• Lightning Risk Calculator (Based On Australian Standard)

• Hani Rafat Risk Calculator• EXTool -SWISS Re• HAZOP, FMEA, What If, Job Safety Analysis • Risk Management Planning Software (Based on EPA,

US)• PHAST & SAFETI (Tie-Up)• FPES (National Building Code)

COST

BENEFIT

Manage Risks Profitably

LOSS PREVENTION

THANK YOU!!