Manila Electric Co. · PSE:MER
Manila Electric — ESG Presentation (June 2017)
51 slides from Manila Electric's sustainability presentation, June 2017
Slide 1: Power Line Electrical Safety
Power Line Electrical Safety Engr. Efren Domingo Safety, Occupational Health and Environment Management
Slide 2: Power Line Electrical Safety
POWER LINE ELECTRICAL SAFETY Engr. Efren V. Domingo Head - Safety, Occ. Health & Environment Management
Slide 3: Outline
Outline •Public Safety Statistics •Causes & Analysis •Power Line Designs •Elec. Shocks – How it can harm? •Effects to Human Body •Contacts to avoid •Preventive Measures •Meralco Public Safety Initiatives
Slide 4: Majority of public incidents are building work site related
MAJORITY OF PUBLIC INCIDENTS ARE BUILDING WORK SITE (BWS) RELATED Summary of Public Incident Per Type (2012-2016) Natural Phenomenon, Kite Flying, 23, 1% 37, 2% Tree Trimming/ Fruit Picking, 106, 6% Other Random Contacts to Power Lines, 371, 20% BWS Activities, 1153, 62% Antenna Installation, 161, 9
Slide 5: Why do BWS public incidents occur?
WHY DO BWS PUBLIC INCIDENTS OCCUR ? Population increase in the franchise area Continuous development and industry boom Lack of Safety awareness
Slide 6: Voltage increases as the height increases
VOLTAGE INCREASES AS THE HEIGHT INCREASES 115, 000 Volts 34, 500 Volts
Slide 7: Distribution lines are equally dangerous as transmission lines
DISTRIBUTION LINES ARE EQUALLY DANGEROUS AS TRANSMISSION LINES 34, 500 Volts 230 Volts
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Slide 9: Slide 9
Slide 10: Shock is a product of live line and a grounded body contact
SHOCK IS A PRODUCT OF LIVE LINE & A GROUNDED BODY CONTACT Distribution Substation Transformer Secondary / Overhead Lines Service Lines 230V 20,000V Neutral Line Ground Ground Earth ground
Slide 11: Electrical current can be fatal when it passes through the heart
ELECTRICAL CURRENT CAN BE FATAL WHEN IT PASSES THROUGH THE HEART Jewelries are strong conductors, avoid wearing it in worksites
Slide 12: How electricity can harm you?
HOW ELECTRICITY CAN HARM YOU? Organ burns: 5000- 6000 Heart paralysis: 250- 300 Ventricular fibrilation: 75-100 Respiratory paralysis: 30-75 "Let go" threshold: 10- 40 Pain 3-10 Muscle contraction: 1-5 Perception: 0.5-1.5 0.1 1 10 100 1000 10000 Milliamperes 1 Amp 10 Amp
Slide 13: How electricity can harm you? Ohm's Law
HOW ELECTRICITY CAN HARM YOU? OHM’s Law V = IR or I = V R Where: V - potential in VOLTS I - current in AMPERES R - resistance in OHMS
Slide 14: How electricity can harm you? Sample computation
HOW ELECTRICITY CAN HARM YOU? Sample Computation Under dry conditions, the resistance offered by the human body may be as high as 100,000 Ohms. Wet or broken skin may drop the body's resistance to 1,000 Ohms.
Slide 15: How electricity can harm you? Sample computation
HOW ELECTRICITY CAN HARM YOU? Sample Computation I= V Where R =2000 ohms (Resistance of human body) R 12 Volts I = 12 Volts / 2000 Ohms car battery 40 Amperes I = 0.006 Ampere
Slide 16: How electricity can harm you? Battery
HOW ELECTRICITY CAN HARM YOU? Organ burns: 5000- 6000 Heart paralysis: 250- 300 Ventricular fibrilation: 75-100 Respiratory paralysis: 30-75 BATTERY "Let go" threshold: 10- 40 Pain 3-10 Muscle contraction: 1-5 Perception: 0.5-1.5 Milliamperes 0.1 1 10 100 1000 10000 1 Amp 10 Amp
Slide 17: How electricity can harm you? Sample computation
HOW ELECTRICITY CAN HARM YOU? Sample Computation I= V Where R =2000 ohms (Resistance of human body) R 110 Volts I = 110 Volts / 2000 Ohms line-to-ground 15 Amperes I = 0.055 Amperes
Slide 18: How electricity can harm you? Outlet
HOW ELECTRICITY CAN HARM YOU? 220 OUTLET Organ burns: 5000- 6000 Heart paralysis: 250- 300 110 OUTLET Ventricular fibrilation: 75-100 Respiratory paralysis: 30-75 BATTERY "Let go" threshold: 10- 40 Pain 3-10 Muscle contraction: 1-5 Perception: 0.5-1.5 Milliamperes 0.1 1 10 100 1000 10000 1 Amp 10 Am
Slide 19: Effects of electrical contact to the human body
EFFECTS OF ELECTRICAL CONTACT TO THE HUMAN BODY
Slide 20: Possible outcomes after becoming in contact with power lines
POSSIBLE OUTCOMES AFTER BECOMING IN CONTACT WITH POWER LINES Fall from height Unconciousness or head injury from falls
Slide 21: Severe skin burns result from electricity flowing in the body
SEVERE SKIN BURNS RESULT FROM ELECTRICITY FLOWING IN THE BODY
Slide 22: Electrical current enters and exits from extremities
ELECTRICAL CURRENT ENTERS AND EXITS FROM EXTREMITIES
Slide 23: Electrical contact can be fatal
ELECTRICAL CONTACT CAN BE FATAL
Slide 24: Contacts that must be avoided
CONTACTS THAT MUST BE AVOIDED
Slide 25: Antenna Installation
Antenna Installation Entry point
Slide 26: Tree Trimming/Pruning
Tree Trimming/Pruning
Slide 27: Fruit Picking
Fruit Picking
Slide 28: Kite Flying
Kite Flying
Slide 29: Contacts that must be avoided: construction activities
CONTACTS THAT MUST BE AVOIDED CONSTRUCTION ACTIVITIES
Slide 30: Working near powerlines must be avoided
WORKING NEAR POWERLINES MUST BE AVOIDED
Slide 31: Improper handling of items are common accident causes
IMPROPER HANDLING OF ITEMS ARE COMMON ACCIDENT CAUSES
Slide 32: All construction materials are conductors of electricity
ALL CONSTRUCTION MATERIALS ARE CONDUCTORS OF ELECTRICITY
Slide 33: All construction materials are conductors of electricity
ALL CONSTRUCTION MATERIALS ARE CONDUCTORS OF ELECTRICITY
Slide 34: Be mindful of long items that may bring contact to powerlines
BE MINDFUL OF LONG ITEMS THAT MAY BRING CONTACT TO POWERLINES
Slide 35: Spotters are necessary to guide crane operators
SPOTTERS ARE NECESSARY TO GUIDE CRANE OPERATORS AVOID POWERLINE CONTACT
Slide 36: Concrete pumps are exposed to the same hazards as cranes
CONCRETE PUMPS ARE EXPOSED TO THE SAME HAZARDS AS CRANES
Slide 37: Measures to avoid contact: construction activities
MEASURES TO AVOID CONTACT CONSTRUCTION ACTIVITIES
Slide 38: Maintain a minimum safe distance of 3 meters
AVOID POWERLINE CONTACT, MAINTAIN A MINIMUM SAFE DISTANCE OF 3-METERS
Slide 39: Before construction coordination should be made with Meralco
BEFORE CONSTRUCTION COORDINATION SHOULD BE MADE WITH MERALCO
Slide 40: Safe clearances required by law
SAFE CLEARANCES REQUIRED BY LAW *Based from 2009 Philippine Electrical Code Part 1 Volume 1
Slide 41: Meralco Public Safety Initiatives
MERALCO PUBLIC SAFETY INITIATIVES
Slide 42: Reconstruction of Facilities/Engineering Methods
Reconstruction of Facilities/Engineering Methods Installation of conductor covers to provide barrier to construction workers. Reconstruction of facilities to Installation of insulated wires to line maintain safe clearance from facilities to avoid accidental contact. building under construction.
Slide 43: Ground Work Activities
Ground Work Activities Flip Chart Cover Page Content in Filipino for easy comprehension Electrical safety lectures at Roxas High School, Quezon City Building work site safety lectures were conducted using Flip Charts Council of Student Chapters Forum at Meralco Theater
Slide 44: Ground Work Activities
Ground Work Activities Leaflets distributed to customers Poster Type Collaterals for Kiosks and Building Work Sites Filipino English
Slide 45: Ground Work Activities
Ground Work Activities Safety Message Fan distributed to customers Back Front Public Safety Flash Animation (link https://www.youtube.com/watch?v=GhwHb8R7MGk ) 5
Slide 46: Tri-media and Other Engagements
Tri-media and Other Engagements Power line safety discussions during Broadcasters’ Forum CNN Philippines guesting
Slide 47: Tri-media and Other Engagements
Tri-media and Other Engagements Social Media Public Safety Tips
Slide 48: What I can do?
WHAT I CAN DO?
Slide 49: Immediately report dangers before an accident could occur
IMMEDIATELY REPORT DANGERS BEFORE AN ACCIDENT COULD OCCUR
Slide 50: Share what you have learned
SHARE WHAT YOU HAVE LEARNED
Slide 51: Do not hesitate to contact us
DO NOT HESITATE TO CONTACT US SMS : 0920-9716211 (Smart) 0925-7716211 (Sun) 0917-5516211 (Globe) Social Media: Facebook.com/Meralco Twitter.com/Meralco
Manila Electric Company (Meralco) — ESG Presentation (June 2017) on 6ix