Observing Electrical Safety in Workplaces 8 th May 2014 Presenter : Er. Ken Jung Gee Keong Executive Director Quality Power Management Pte Ltd
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An Introduction Mr. Ken Jung Founder & Executive Director Ø Ø Ø Ken Jung Gee Keong Ø Ø A Member of the Association of Professional Engineers of the Province of Ontario, Canada (APEO), the Singapore Professional Engineers Board and the Chartered Engineers of the United Kingdom. 37 Years of Working-Experience An Authorised High-Voltage Switching Engineer (AHVSE) with the Energy Market Authority (EMA). Taught at the Singapore Polytechnic - Property Maintenance and Facilities Management Course Happy to Share My Experience as a Licensed Electrical Engineer for Major Corporations
Overall View of Electrical Safety - Regulatory Aspects Type of Installation Code of Practice Permanent Installations SS CP 5: 1998 SS CP 555: 2010 Electrical Installations (formerly CP 33) Lightning Protection SS 538: 2008 Maintenance of Electrical Equipment of Electrical Installation SS 551: 2009 Temporary Installations (formerly CP 17) (formerly CP 16) Earthing SS CP 88 -1: 2001 Construction and Building Sites SS CP 88 -2: 2001 Festive Lighting, Trade Fairs, Mini-Fairs and Exhibition Sites SS CP 88 -3: 2001 Ship-Building and Ship-Repairing Yards
Topic Focus - Licensing ü 1. 2. 3. 4. 5. 6. 7. 8. 14 Items to be Registered/Approved from Spring Singapore Before Use 3 -pin rectangular type 13 -Amp plugs Fuses ( less than or equal to 13 amperes ) for use in plugs 3 -pin round type 15 -Amp plugs Multi-way Adaptors 3 -pin Portable Socket-outlets Portable Cable Reels Instantaneous Electric Water Heaters Mains Pressure Electric Storage Water Heaters
Topic Focus - Licensing 14 Prescribed Items 9. Earth Leakage Circuit Breakers 10. 3 -pin 13 -Amp Switched Socket-outlets 11. 3 -pin round type 15 -Amp Switched Socketoutlets 12. 13 -Amp Wall Switch 13. Ballasts 14. Isolating Transformers ü
Overall View of Electrical Safety ü Safety Equipment
Overall View of Electrical Safety ü Safety Equipment
Overall View of Electrical Safety ü Safety Equipment
Overall View of Electrical Safety ü Safety Equipment
Arc Flash – A Close-Up • • Temperature 35, 000°F Molten Metals Vaporizes Produces A Plasma Fireball Expansion of Super-Heated Air & Vaporizing Metals Creates Extreme Pressure May Cause Severe Life-Threatening Injuries
Arc Flash and Blast
An LEW’s Perspective Before Stepping Into A Switchroom: ü Smell for ionization, foul or burning smell ü Hear for humming, hissing or rapid energizing and de-energizing of contactors ü See, look out for irregularities like improper installation, broken handle of MCCB or sign of water seepage. Do not step or touch the water surrounding the switch board, it could be “live” ü Feel the heat in the switch room ü Touch for vibration, surface temperature
WOW ! That’s A Lot To Know Or Learn ! Do You Have To Know Everything? ? ?
Good If You Know Everything… If Not, You Should Know Who Knows… WHO?
Your LEW Licensed Electrical Worker
He / She Acts As Your Doctor Or Lawyer For Your Building Or Electrical Installation
There Are: Good Doctors & Bad Doctors Good Lawyers & Bad Lawyers Good LEWs & Bad LEWs
What Makes A Good Inspection Report? ü Clear (eg. Refers to Regulations / Photos) ü Accurate ü Detailed ü Timely ü Provides Advisory
An Inspection Report Sample
An Inspection Report Sample
An Inspection Report Sample
An Inspection Report Sample Report and Defect List Received and Acted Upon by Management On A Timely Basis
Inspection Findings It’s All In The Details 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. Maintenance Regime (Servicing, Inspection etc. ) Accessibility / Housekeeping (Cleanliness, Eqpt. etc) Improper Installation Protection Systems Protection Against Spillage / Rodents Instrument & Indicating Lights Protective Relays Readings – Loading / Temperature Signs of Overheating Excessive Humming Noise Fire Extinguisher
Inspection Findings Poor Housekeeping Areas like passageway, surrounding of switch room should be kept clear
Inspection Findings Improper Installation Loose cable dangling without mechanical protection
Inspection Findings Faulty Protection System Lightning conductor removed by roof retrofitting contractor
Inspection Findings Flashovers Caused by Rodents Ensure rodent bait is used
Inspection Findings Expired or Soon-To-Be Expired Fire Extinguishers
Inspection Findings Overdue Servicing regime should follow the Maintenance Matrix in SS 538: 2008 published by SPRING Singapore
Inspection Findings Signs of Overheating Check for any overloading or overheating on the main switchboard as the surface should not be hot and does not produce any unusual/ excessive humming sound
Inspection Findings Burnt current Relay Over nt Switchboard Bur
Inspection Findings Burnt Air Circuit Breaker
In Summary: ALWAYS PICK A GOOD LEW TO WORK WITH
Quality Power Management Pte Ltd Er. Ken G Jung Executive Director Quality Power Management Pte Ltd 16 Boon Lay Way, #01 -43 Tradehub 21 Singapore 609965 www. qpower. com. sg
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