SlideShare a Scribd company logo
1 of 7
Download to read offline
Case Study
On
Electrical Maintenance
•Electrical maintenance
• Electrical accidents commonly occur whilst
equipment is being maintained.
• This may be electrical equipment such as switchgear
or equipment that uses electrical power.
• Most accidents happen because workers have not
been adequately trained, are being poorly
supervised, or because the risks of the work have not
been properly assessed.
• The incidents are real.
Unsafe system of work
•An employee was killed by 86 Volts when changing
a welding electrode whilst working in a metal silo.
•An apprentice electrician was severely injured from
contact with live equipment in a substation.
•An employee received an electric shock that broke
both shoulders.
•An employee was trying to apply insulating tape to
a live electrical cable but received an electric shock.
Inadequate information
• An employee received a fatal electric shock whilst
examining a faulty air conditioning unit.
No training
• A worker was injured when working in a live
electrical panel. He had not been trained.
Inadequate isolation
• An electrician received a severe electric shock
because he had not properly isolated the supply.
Unsafe rules
• An electrical fitter had to have both arms
amputated after receiving burns from a 33,000
Volt supply.
Poor control of work activities
• An electrical contractor was injured by live 11,000
Volt switchgear.
Live working
• An employee suffered brain damage following an
electric shock he received whilst live working.
Unsuitable test equipment
• An employee was killed when setting up
equipment to test printed circuit boards.
Poor maintenance
• A worker received a 240 Volt electric
shock whilst using a pressure washer.
Failure to manage work
• A contractor's employee received an electric
shock after confusion over isolation.
Person not competent
• Person received a severe electric shock after he
incorrectly wired a machine.
Uninsulated electrical wiring
• A worker was killed whilst attempting to clear a
blockage in a wrapping machine.

More Related Content

What's hot

Electrical hazards & safety training
Electrical hazards & safety trainingElectrical hazards & safety training
Electrical hazards & safety trainingSYED HAIDER ABBAS
 
Electrical maintenance fundamentals
Electrical maintenance fundamentalsElectrical maintenance fundamentals
Electrical maintenance fundamentalsJames Shearer
 
Safe Operation and Maintenance of Circuit Breakers and Switchgear
Safe Operation and Maintenance of Circuit Breakers and SwitchgearSafe Operation and Maintenance of Circuit Breakers and Switchgear
Safe Operation and Maintenance of Circuit Breakers and SwitchgearLiving Online
 
Electrical hazards
Electrical hazardsElectrical hazards
Electrical hazardsNauman khan
 
Electrical Safety for Non-Electrical Workers.138344394216476.OS
Electrical Safety for Non-Electrical Workers.138344394216476.OSElectrical Safety for Non-Electrical Workers.138344394216476.OS
Electrical Safety for Non-Electrical Workers.138344394216476.OSEiyla Hamdan
 
Grounding,Earthing,Bonding
Grounding,Earthing,BondingGrounding,Earthing,Bonding
Grounding,Earthing,BondingKo Winnwe
 
switchgear and protection by vala kamlesh
switchgear and protection by vala kamleshswitchgear and protection by vala kamlesh
switchgear and protection by vala kamleshKamlesh Vala
 
Unit 06 - Substation and maintenance
Unit 06 - Substation and maintenanceUnit 06 - Substation and maintenance
Unit 06 - Substation and maintenancePremanandDesai
 
Electrical safety
Electrical safetyElectrical safety
Electrical safety1186429
 
Understanding Arc Flash
Understanding Arc FlashUnderstanding Arc Flash
Understanding Arc Flashmichaeljmack
 
Lv switchgear & lv cable sizing
Lv switchgear & lv cable sizingLv switchgear & lv cable sizing
Lv switchgear & lv cable sizingAsif Eqbal
 
Troubleshooting Electrical Faults
Troubleshooting Electrical FaultsTroubleshooting Electrical Faults
Troubleshooting Electrical FaultsSimutech Multimedia
 

What's hot (20)

What is leakage current testing
What is leakage current testingWhat is leakage current testing
What is leakage current testing
 
Electrical hazards & safety training
Electrical hazards & safety trainingElectrical hazards & safety training
Electrical hazards & safety training
 
Electrical maintenance fundamentals
Electrical maintenance fundamentalsElectrical maintenance fundamentals
Electrical maintenance fundamentals
 
Safe Operation and Maintenance of Circuit Breakers and Switchgear
Safe Operation and Maintenance of Circuit Breakers and SwitchgearSafe Operation and Maintenance of Circuit Breakers and Switchgear
Safe Operation and Maintenance of Circuit Breakers and Switchgear
 
Electrical safety
Electrical safetyElectrical safety
Electrical safety
 
Electrical Safety by OSHA
Electrical Safety by OSHAElectrical Safety by OSHA
Electrical Safety by OSHA
 
Electrical hazards
Electrical hazardsElectrical hazards
Electrical hazards
 
Electrical Safety for Non-Electrical Workers.138344394216476.OS
Electrical Safety for Non-Electrical Workers.138344394216476.OSElectrical Safety for Non-Electrical Workers.138344394216476.OS
Electrical Safety for Non-Electrical Workers.138344394216476.OS
 
Insulation Resistance Test
Insulation Resistance TestInsulation Resistance Test
Insulation Resistance Test
 
Grounding,Earthing,Bonding
Grounding,Earthing,BondingGrounding,Earthing,Bonding
Grounding,Earthing,Bonding
 
Electrical safety
Electrical safetyElectrical safety
Electrical safety
 
switchgear and protection by vala kamlesh
switchgear and protection by vala kamleshswitchgear and protection by vala kamlesh
switchgear and protection by vala kamlesh
 
Unit 06 - Substation and maintenance
Unit 06 - Substation and maintenanceUnit 06 - Substation and maintenance
Unit 06 - Substation and maintenance
 
Electrical safety
Electrical safetyElectrical safety
Electrical safety
 
Understanding Arc Flash
Understanding Arc FlashUnderstanding Arc Flash
Understanding Arc Flash
 
Electrical safety
Electrical safetyElectrical safety
Electrical safety
 
Lv switchgear & lv cable sizing
Lv switchgear & lv cable sizingLv switchgear & lv cable sizing
Lv switchgear & lv cable sizing
 
Electrical safety
Electrical safetyElectrical safety
Electrical safety
 
Breaker Operation & Maintenance
Breaker Operation & MaintenanceBreaker Operation & Maintenance
Breaker Operation & Maintenance
 
Troubleshooting Electrical Faults
Troubleshooting Electrical FaultsTroubleshooting Electrical Faults
Troubleshooting Electrical Faults
 

Similar to 4. case studies on electrical maintanance

Electricalsafetyaffectedemployees 131125110440-phpapp01 (1)
Electricalsafetyaffectedemployees 131125110440-phpapp01 (1)Electricalsafetyaffectedemployees 131125110440-phpapp01 (1)
Electricalsafetyaffectedemployees 131125110440-phpapp01 (1)Dean Jendsen
 
Electrical Safety (affected employees)
Electrical Safety (affected employees)Electrical Safety (affected employees)
Electrical Safety (affected employees)buffbuss61
 
5 Common Causes of Electrical Accidents
5 Common Causes of Electrical Accidents5 Common Causes of Electrical Accidents
5 Common Causes of Electrical AccidentsSimutech Multimedia
 
ECCU_ECCU 211_FORMATO TRABAJO FINAL_INGLÉS TÉCNICO_ANTONIO DELGADO MONCADA.pptx
ECCU_ECCU 211_FORMATO TRABAJO FINAL_INGLÉS TÉCNICO_ANTONIO DELGADO MONCADA.pptxECCU_ECCU 211_FORMATO TRABAJO FINAL_INGLÉS TÉCNICO_ANTONIO DELGADO MONCADA.pptx
ECCU_ECCU 211_FORMATO TRABAJO FINAL_INGLÉS TÉCNICO_ANTONIO DELGADO MONCADA.pptxEnocngelArcentalesVa
 
Electrical safety ppt(1)
Electrical safety ppt(1)Electrical safety ppt(1)
Electrical safety ppt(1)Er Ramgarhia
 
Module 011 ElectricalSafetyAwareness.pptx
Module 011 ElectricalSafetyAwareness.pptxModule 011 ElectricalSafetyAwareness.pptx
Module 011 ElectricalSafetyAwareness.pptxRachmanLintang
 
Electrical safety ppt
Electrical safety pptElectrical safety ppt
Electrical safety pptEr Ramgarhia
 
ECCU_ECCU 211_FORMATO TRABAJO FINAL_INGLÉS TÉCNICO_LACHI SAAVEDRA.pptx
ECCU_ECCU 211_FORMATO TRABAJO FINAL_INGLÉS TÉCNICO_LACHI SAAVEDRA.pptxECCU_ECCU 211_FORMATO TRABAJO FINAL_INGLÉS TÉCNICO_LACHI SAAVEDRA.pptx
ECCU_ECCU 211_FORMATO TRABAJO FINAL_INGLÉS TÉCNICO_LACHI SAAVEDRA.pptxEnocngelArcentalesVa
 
ECCU_ECCU 211_FORMATO TRABAJO FINAL_INGLÉS TÉCNICO_TOSHIRO.pptx
ECCU_ECCU 211_FORMATO TRABAJO FINAL_INGLÉS TÉCNICO_TOSHIRO.pptxECCU_ECCU 211_FORMATO TRABAJO FINAL_INGLÉS TÉCNICO_TOSHIRO.pptx
ECCU_ECCU 211_FORMATO TRABAJO FINAL_INGLÉS TÉCNICO_TOSHIRO.pptxEnocngelArcentalesVa
 
Electrical safety
Electrical safetyElectrical safety
Electrical safetyPrem kumar
 
Electrical Safety Training Course 2014
Electrical Safety Training Course 2014Electrical Safety Training Course 2014
Electrical Safety Training Course 2014H&K Equipment Group
 
Module 4 Working Near or Live Parts.pdf
Module 4 Working Near or Live Parts.pdfModule 4 Working Near or Live Parts.pdf
Module 4 Working Near or Live Parts.pdfFrancisco Laddaran
 
ELECTRICAL SAFETY Training module pembelajaran
ELECTRICAL SAFETY Training module pembelajaranELECTRICAL SAFETY Training module pembelajaran
ELECTRICAL SAFETY Training module pembelajaranDianYudhakurniawan
 
2 Gall - Electrical Safety.pdf
2 Gall - Electrical Safety.pdf2 Gall - Electrical Safety.pdf
2 Gall - Electrical Safety.pdfTrainer011
 
Ch. 04 Electrical____________________.PPT
Ch. 04 Electrical____________________.PPTCh. 04 Electrical____________________.PPT
Ch. 04 Electrical____________________.PPTMuhammad Saqib
 

Similar to 4. case studies on electrical maintanance (20)

Electricalsafetyaffectedemployees 131125110440-phpapp01 (1)
Electricalsafetyaffectedemployees 131125110440-phpapp01 (1)Electricalsafetyaffectedemployees 131125110440-phpapp01 (1)
Electricalsafetyaffectedemployees 131125110440-phpapp01 (1)
 
Electrical Safety (affected employees)
Electrical Safety (affected employees)Electrical Safety (affected employees)
Electrical Safety (affected employees)
 
Electrical safety
Electrical safetyElectrical safety
Electrical safety
 
5 Common Causes of Electrical Accidents
5 Common Causes of Electrical Accidents5 Common Causes of Electrical Accidents
5 Common Causes of Electrical Accidents
 
ECCU_ECCU 211_FORMATO TRABAJO FINAL_INGLÉS TÉCNICO_ANTONIO DELGADO MONCADA.pptx
ECCU_ECCU 211_FORMATO TRABAJO FINAL_INGLÉS TÉCNICO_ANTONIO DELGADO MONCADA.pptxECCU_ECCU 211_FORMATO TRABAJO FINAL_INGLÉS TÉCNICO_ANTONIO DELGADO MONCADA.pptx
ECCU_ECCU 211_FORMATO TRABAJO FINAL_INGLÉS TÉCNICO_ANTONIO DELGADO MONCADA.pptx
 
Electrical safety ppt(1)
Electrical safety ppt(1)Electrical safety ppt(1)
Electrical safety ppt(1)
 
Module 011 ElectricalSafetyAwareness.pptx
Module 011 ElectricalSafetyAwareness.pptxModule 011 ElectricalSafetyAwareness.pptx
Module 011 ElectricalSafetyAwareness.pptx
 
Electrical safety ppt
Electrical safety pptElectrical safety ppt
Electrical safety ppt
 
Electrical Safety training.pptx
Electrical Safety training.pptxElectrical Safety training.pptx
Electrical Safety training.pptx
 
ELECTRICAL HAZARD.pptx
ELECTRICAL HAZARD.pptxELECTRICAL HAZARD.pptx
ELECTRICAL HAZARD.pptx
 
ECCU_ECCU 211_FORMATO TRABAJO FINAL_INGLÉS TÉCNICO_LACHI SAAVEDRA.pptx
ECCU_ECCU 211_FORMATO TRABAJO FINAL_INGLÉS TÉCNICO_LACHI SAAVEDRA.pptxECCU_ECCU 211_FORMATO TRABAJO FINAL_INGLÉS TÉCNICO_LACHI SAAVEDRA.pptx
ECCU_ECCU 211_FORMATO TRABAJO FINAL_INGLÉS TÉCNICO_LACHI SAAVEDRA.pptx
 
ECCU_ECCU 211_FORMATO TRABAJO FINAL_INGLÉS TÉCNICO_TOSHIRO.pptx
ECCU_ECCU 211_FORMATO TRABAJO FINAL_INGLÉS TÉCNICO_TOSHIRO.pptxECCU_ECCU 211_FORMATO TRABAJO FINAL_INGLÉS TÉCNICO_TOSHIRO.pptx
ECCU_ECCU 211_FORMATO TRABAJO FINAL_INGLÉS TÉCNICO_TOSHIRO.pptx
 
Electrical safety
Electrical safetyElectrical safety
Electrical safety
 
Electrical Safety Tips
Electrical Safety TipsElectrical Safety Tips
Electrical Safety Tips
 
Electrical Safety Training Course 2014
Electrical Safety Training Course 2014Electrical Safety Training Course 2014
Electrical Safety Training Course 2014
 
Module 4 Working Near or Live Parts.pdf
Module 4 Working Near or Live Parts.pdfModule 4 Working Near or Live Parts.pdf
Module 4 Working Near or Live Parts.pdf
 
ELECTRICAL SAFETY ASPECT
ELECTRICAL SAFETY ASPECTELECTRICAL SAFETY ASPECT
ELECTRICAL SAFETY ASPECT
 
ELECTRICAL SAFETY Training module pembelajaran
ELECTRICAL SAFETY Training module pembelajaranELECTRICAL SAFETY Training module pembelajaran
ELECTRICAL SAFETY Training module pembelajaran
 
2 Gall - Electrical Safety.pdf
2 Gall - Electrical Safety.pdf2 Gall - Electrical Safety.pdf
2 Gall - Electrical Safety.pdf
 
Ch. 04 Electrical____________________.PPT
Ch. 04 Electrical____________________.PPTCh. 04 Electrical____________________.PPT
Ch. 04 Electrical____________________.PPT
 

More from Rohan Homkar

Unlock Your Full Potential By Rohan Homkar
Unlock Your Full Potential By Rohan HomkarUnlock Your Full Potential By Rohan Homkar
Unlock Your Full Potential By Rohan HomkarRohan Homkar
 
Educational Video Content Creation Workshop By Rohan Homkar
Educational Video Content Creation Workshop By Rohan Homkar Educational Video Content Creation Workshop By Rohan Homkar
Educational Video Content Creation Workshop By Rohan Homkar Rohan Homkar
 
Habits of an Effective Entrepreneurs
Habits of an Effective  EntrepreneursHabits of an Effective  Entrepreneurs
Habits of an Effective EntrepreneursRohan Homkar
 
SCHOOL CONNECT BROCHURE
SCHOOL CONNECT BROCHURESCHOOL CONNECT BROCHURE
SCHOOL CONNECT BROCHURERohan Homkar
 
School connect Program KJSP
School connect Program  KJSP School connect Program  KJSP
School connect Program KJSP Rohan Homkar
 
" Role of Digital Content in organisation's Sustainability "
" Role of Digital Content in organisation's  Sustainability "" Role of Digital Content in organisation's  Sustainability "
" Role of Digital Content in organisation's Sustainability "Rohan Homkar
 
Generation Of Power Lecture 1 : Energy and Power scenario in India
Generation Of Power Lecture 1 : Energy and Power scenario in IndiaGeneration Of Power Lecture 1 : Energy and Power scenario in India
Generation Of Power Lecture 1 : Energy and Power scenario in IndiaRohan Homkar
 
Expert lecture on importance of standby power supply industry overview
Expert lecture on importance of standby power supply  industry overviewExpert lecture on importance of standby power supply  industry overview
Expert lecture on importance of standby power supply industry overviewRohan Homkar
 
3. basic electrical safety
3. basic electrical safety3. basic electrical safety
3. basic electrical safetyRohan Homkar
 
2. electrical considering
2. electrical considering2. electrical considering
2. electrical consideringRohan Homkar
 
Defining Your Business Model
Defining Your Business Model Defining Your Business Model
Defining Your Business Model Rohan Homkar
 
Industraial safety Trianing for small and medium scale industries
Industraial safety Trianing for small and medium scale industries Industraial safety Trianing for small and medium scale industries
Industraial safety Trianing for small and medium scale industries Rohan Homkar
 
Application of solar energy for sterling engine
Application of solar energy for sterling engineApplication of solar energy for sterling engine
Application of solar energy for sterling engineRohan Homkar
 

More from Rohan Homkar (14)

Unlock Your Full Potential By Rohan Homkar
Unlock Your Full Potential By Rohan HomkarUnlock Your Full Potential By Rohan Homkar
Unlock Your Full Potential By Rohan Homkar
 
Educational Video Content Creation Workshop By Rohan Homkar
Educational Video Content Creation Workshop By Rohan Homkar Educational Video Content Creation Workshop By Rohan Homkar
Educational Video Content Creation Workshop By Rohan Homkar
 
Habits of an Effective Entrepreneurs
Habits of an Effective  EntrepreneursHabits of an Effective  Entrepreneurs
Habits of an Effective Entrepreneurs
 
SCHOOL CONNECT BROCHURE
SCHOOL CONNECT BROCHURESCHOOL CONNECT BROCHURE
SCHOOL CONNECT BROCHURE
 
School connect Program KJSP
School connect Program  KJSP School connect Program  KJSP
School connect Program KJSP
 
" Role of Digital Content in organisation's Sustainability "
" Role of Digital Content in organisation's  Sustainability "" Role of Digital Content in organisation's  Sustainability "
" Role of Digital Content in organisation's Sustainability "
 
Generation Of Power Lecture 1 : Energy and Power scenario in India
Generation Of Power Lecture 1 : Energy and Power scenario in IndiaGeneration Of Power Lecture 1 : Energy and Power scenario in India
Generation Of Power Lecture 1 : Energy and Power scenario in India
 
Expert lecture on importance of standby power supply industry overview
Expert lecture on importance of standby power supply  industry overviewExpert lecture on importance of standby power supply  industry overview
Expert lecture on importance of standby power supply industry overview
 
5. fire safety
5. fire safety5. fire safety
5. fire safety
 
3. basic electrical safety
3. basic electrical safety3. basic electrical safety
3. basic electrical safety
 
2. electrical considering
2. electrical considering2. electrical considering
2. electrical considering
 
Defining Your Business Model
Defining Your Business Model Defining Your Business Model
Defining Your Business Model
 
Industraial safety Trianing for small and medium scale industries
Industraial safety Trianing for small and medium scale industries Industraial safety Trianing for small and medium scale industries
Industraial safety Trianing for small and medium scale industries
 
Application of solar energy for sterling engine
Application of solar energy for sterling engineApplication of solar energy for sterling engine
Application of solar energy for sterling engine
 

Recently uploaded

STATE TRANSITION DIAGRAM in psoc subject
STATE TRANSITION DIAGRAM in psoc subjectSTATE TRANSITION DIAGRAM in psoc subject
STATE TRANSITION DIAGRAM in psoc subjectGayathriM270621
 
Javier_Fernandez_CARS_workshop_presentation.pptx
Javier_Fernandez_CARS_workshop_presentation.pptxJavier_Fernandez_CARS_workshop_presentation.pptx
Javier_Fernandez_CARS_workshop_presentation.pptxJavier Fernández Muñoz
 
CS 3251 Programming in c all unit notes pdf
CS 3251 Programming in c all unit notes pdfCS 3251 Programming in c all unit notes pdf
CS 3251 Programming in c all unit notes pdfBalamuruganV28
 
Levelling - Rise and fall - Height of instrument method
Levelling - Rise and fall - Height of instrument methodLevelling - Rise and fall - Height of instrument method
Levelling - Rise and fall - Height of instrument methodManicka Mamallan Andavar
 
Main Memory Management in Operating System
Main Memory Management in Operating SystemMain Memory Management in Operating System
Main Memory Management in Operating SystemRashmi Bhat
 
Virtual memory management in Operating System
Virtual memory management in Operating SystemVirtual memory management in Operating System
Virtual memory management in Operating SystemRashmi Bhat
 
Computer Graphics Introduction, Open GL, Line and Circle drawing algorithm
Computer Graphics Introduction, Open GL, Line and Circle drawing algorithmComputer Graphics Introduction, Open GL, Line and Circle drawing algorithm
Computer Graphics Introduction, Open GL, Line and Circle drawing algorithmDeepika Walanjkar
 
70 POWER PLANT IAE V2500 technical training
70 POWER PLANT IAE V2500 technical training70 POWER PLANT IAE V2500 technical training
70 POWER PLANT IAE V2500 technical trainingGladiatorsKasper
 
priority interrupt computer organization
priority interrupt computer organizationpriority interrupt computer organization
priority interrupt computer organizationchnrketan
 
Theory of Machine Notes / Lecture Material .pdf
Theory of Machine Notes / Lecture Material .pdfTheory of Machine Notes / Lecture Material .pdf
Theory of Machine Notes / Lecture Material .pdfShreyas Pandit
 
US Department of Education FAFSA Week of Action
US Department of Education FAFSA Week of ActionUS Department of Education FAFSA Week of Action
US Department of Education FAFSA Week of ActionMebane Rash
 
Input Output Management in Operating System
Input Output Management in Operating SystemInput Output Management in Operating System
Input Output Management in Operating SystemRashmi Bhat
 
2022 AWS DNA Hackathon 장애 대응 솔루션 jarvis.
2022 AWS DNA Hackathon 장애 대응 솔루션 jarvis.2022 AWS DNA Hackathon 장애 대응 솔루션 jarvis.
2022 AWS DNA Hackathon 장애 대응 솔루션 jarvis.elesangwon
 
Comprehensive energy systems.pdf Comprehensive energy systems.pdf
Comprehensive energy systems.pdf Comprehensive energy systems.pdfComprehensive energy systems.pdf Comprehensive energy systems.pdf
Comprehensive energy systems.pdf Comprehensive energy systems.pdfalene1
 
DEVICE DRIVERS AND INTERRUPTS SERVICE MECHANISM.pdf
DEVICE DRIVERS AND INTERRUPTS  SERVICE MECHANISM.pdfDEVICE DRIVERS AND INTERRUPTS  SERVICE MECHANISM.pdf
DEVICE DRIVERS AND INTERRUPTS SERVICE MECHANISM.pdfAkritiPradhan2
 
Robotics-Asimov's Laws, Mechanical Subsystems, Robot Kinematics, Robot Dynami...
Robotics-Asimov's Laws, Mechanical Subsystems, Robot Kinematics, Robot Dynami...Robotics-Asimov's Laws, Mechanical Subsystems, Robot Kinematics, Robot Dynami...
Robotics-Asimov's Laws, Mechanical Subsystems, Robot Kinematics, Robot Dynami...Sumanth A
 
Mine Environment II Lab_MI10448MI__________.pptx
Mine Environment II Lab_MI10448MI__________.pptxMine Environment II Lab_MI10448MI__________.pptx
Mine Environment II Lab_MI10448MI__________.pptxRomil Mishra
 
Turn leadership mistakes into a better future.pptx
Turn leadership mistakes into a better future.pptxTurn leadership mistakes into a better future.pptx
Turn leadership mistakes into a better future.pptxStephen Sitton
 
Comparative study of High-rise Building Using ETABS,SAP200 and SAFE., SAFE an...
Comparative study of High-rise Building Using ETABS,SAP200 and SAFE., SAFE an...Comparative study of High-rise Building Using ETABS,SAP200 and SAFE., SAFE an...
Comparative study of High-rise Building Using ETABS,SAP200 and SAFE., SAFE an...Erbil Polytechnic University
 

Recently uploaded (20)

STATE TRANSITION DIAGRAM in psoc subject
STATE TRANSITION DIAGRAM in psoc subjectSTATE TRANSITION DIAGRAM in psoc subject
STATE TRANSITION DIAGRAM in psoc subject
 
Javier_Fernandez_CARS_workshop_presentation.pptx
Javier_Fernandez_CARS_workshop_presentation.pptxJavier_Fernandez_CARS_workshop_presentation.pptx
Javier_Fernandez_CARS_workshop_presentation.pptx
 
CS 3251 Programming in c all unit notes pdf
CS 3251 Programming in c all unit notes pdfCS 3251 Programming in c all unit notes pdf
CS 3251 Programming in c all unit notes pdf
 
Levelling - Rise and fall - Height of instrument method
Levelling - Rise and fall - Height of instrument methodLevelling - Rise and fall - Height of instrument method
Levelling - Rise and fall - Height of instrument method
 
Main Memory Management in Operating System
Main Memory Management in Operating SystemMain Memory Management in Operating System
Main Memory Management in Operating System
 
Virtual memory management in Operating System
Virtual memory management in Operating SystemVirtual memory management in Operating System
Virtual memory management in Operating System
 
Computer Graphics Introduction, Open GL, Line and Circle drawing algorithm
Computer Graphics Introduction, Open GL, Line and Circle drawing algorithmComputer Graphics Introduction, Open GL, Line and Circle drawing algorithm
Computer Graphics Introduction, Open GL, Line and Circle drawing algorithm
 
70 POWER PLANT IAE V2500 technical training
70 POWER PLANT IAE V2500 technical training70 POWER PLANT IAE V2500 technical training
70 POWER PLANT IAE V2500 technical training
 
priority interrupt computer organization
priority interrupt computer organizationpriority interrupt computer organization
priority interrupt computer organization
 
Theory of Machine Notes / Lecture Material .pdf
Theory of Machine Notes / Lecture Material .pdfTheory of Machine Notes / Lecture Material .pdf
Theory of Machine Notes / Lecture Material .pdf
 
US Department of Education FAFSA Week of Action
US Department of Education FAFSA Week of ActionUS Department of Education FAFSA Week of Action
US Department of Education FAFSA Week of Action
 
Input Output Management in Operating System
Input Output Management in Operating SystemInput Output Management in Operating System
Input Output Management in Operating System
 
2022 AWS DNA Hackathon 장애 대응 솔루션 jarvis.
2022 AWS DNA Hackathon 장애 대응 솔루션 jarvis.2022 AWS DNA Hackathon 장애 대응 솔루션 jarvis.
2022 AWS DNA Hackathon 장애 대응 솔루션 jarvis.
 
Comprehensive energy systems.pdf Comprehensive energy systems.pdf
Comprehensive energy systems.pdf Comprehensive energy systems.pdfComprehensive energy systems.pdf Comprehensive energy systems.pdf
Comprehensive energy systems.pdf Comprehensive energy systems.pdf
 
DEVICE DRIVERS AND INTERRUPTS SERVICE MECHANISM.pdf
DEVICE DRIVERS AND INTERRUPTS  SERVICE MECHANISM.pdfDEVICE DRIVERS AND INTERRUPTS  SERVICE MECHANISM.pdf
DEVICE DRIVERS AND INTERRUPTS SERVICE MECHANISM.pdf
 
Robotics-Asimov's Laws, Mechanical Subsystems, Robot Kinematics, Robot Dynami...
Robotics-Asimov's Laws, Mechanical Subsystems, Robot Kinematics, Robot Dynami...Robotics-Asimov's Laws, Mechanical Subsystems, Robot Kinematics, Robot Dynami...
Robotics-Asimov's Laws, Mechanical Subsystems, Robot Kinematics, Robot Dynami...
 
Mine Environment II Lab_MI10448MI__________.pptx
Mine Environment II Lab_MI10448MI__________.pptxMine Environment II Lab_MI10448MI__________.pptx
Mine Environment II Lab_MI10448MI__________.pptx
 
Turn leadership mistakes into a better future.pptx
Turn leadership mistakes into a better future.pptxTurn leadership mistakes into a better future.pptx
Turn leadership mistakes into a better future.pptx
 
Designing pile caps according to ACI 318-19.pptx
Designing pile caps according to ACI 318-19.pptxDesigning pile caps according to ACI 318-19.pptx
Designing pile caps according to ACI 318-19.pptx
 
Comparative study of High-rise Building Using ETABS,SAP200 and SAFE., SAFE an...
Comparative study of High-rise Building Using ETABS,SAP200 and SAFE., SAFE an...Comparative study of High-rise Building Using ETABS,SAP200 and SAFE., SAFE an...
Comparative study of High-rise Building Using ETABS,SAP200 and SAFE., SAFE an...
 

4. case studies on electrical maintanance

  • 2. •Electrical maintenance • Electrical accidents commonly occur whilst equipment is being maintained. • This may be electrical equipment such as switchgear or equipment that uses electrical power. • Most accidents happen because workers have not been adequately trained, are being poorly supervised, or because the risks of the work have not been properly assessed. • The incidents are real.
  • 3. Unsafe system of work •An employee was killed by 86 Volts when changing a welding electrode whilst working in a metal silo. •An apprentice electrician was severely injured from contact with live equipment in a substation. •An employee received an electric shock that broke both shoulders. •An employee was trying to apply insulating tape to a live electrical cable but received an electric shock.
  • 4. Inadequate information • An employee received a fatal electric shock whilst examining a faulty air conditioning unit. No training • A worker was injured when working in a live electrical panel. He had not been trained. Inadequate isolation • An electrician received a severe electric shock because he had not properly isolated the supply.
  • 5. Unsafe rules • An electrical fitter had to have both arms amputated after receiving burns from a 33,000 Volt supply. Poor control of work activities • An electrical contractor was injured by live 11,000 Volt switchgear. Live working • An employee suffered brain damage following an electric shock he received whilst live working.
  • 6. Unsuitable test equipment • An employee was killed when setting up equipment to test printed circuit boards. Poor maintenance • A worker received a 240 Volt electric shock whilst using a pressure washer.
  • 7. Failure to manage work • A contractor's employee received an electric shock after confusion over isolation. Person not competent • Person received a severe electric shock after he incorrectly wired a machine. Uninsulated electrical wiring • A worker was killed whilst attempting to clear a blockage in a wrapping machine.