Case Study 3

CASE STUDY 3 : CHAPTER 7 - ELECTRICAL SAFETY

INTRODUCTION

Assalamualaikum and have a nice day everyone, today we are given the new task for chapter 7. This group discussion consist of 3 members, I,Nur Syafiqa Binti Ibrahim,Puteri Shazmira Sofea Binti Safie, & Nur Hidayah Binti Zarapi and we are from the Solenoid's group.😁

WHAT IS ELECTRICITY?
Electricity is electrical energy or electrical power when its generated , supplied , or utilized .

  

DEFECTIVE INSULATION HAZARD :

⇨IMPROPER GROUNDING HAZARD

• Grounding is the process used to eliminate unwanted voltage. 
•  A ground is a physical electrical connection to the earth
• Electrical equipment must be properly grounded. 
• Grounding reduces the risk of being shocked or electrocuted.
  
• The ground pin safely returns leakage current to ground. 
•  Never remove the ground pin.
• Removing the ground pin removes an important safety feature. 
•  You can get shocked! 

⇨ OVERLOAD HAZARD

• Overloaded circuits can cause fires.
• Use proper circuit breakers
• Never overload an outlet.
  
• Do not use power strips or surge protectors on construction sites. 
• Use a 3-way extension with a GFCI instead.

WET CONDITION HAZARD

• Wet conditions are hazardous. 
•  Damaged insulation increases the hazard.
• Always avoid using tools in wet locations.
•  Water increases the risk of electric shock.
   

PREVENTING MEASURES IN ELECTRICAL SAFETY

• PROTECTION FROM DIRECT CONTACT

which is electrical shock on touching directly a live conductor or cable

• PROTECTION FROM INDIRECT CONTACT

which is occurs due to contact with a part which is connected to the electrical instalation , possibly due to damages in the appliance or insulation  , resulting in leakages of current .

SAVE WORKING ENVIRONMENT

LOCK OUT AND TAG OUT 

• All electrical source
• Place on each disconnecting means used to de-energize circuits
• Attach lock to prevent operating 
• Place tag with each lock

OVERLOAD WIRING BY USING THE RIGHT SIZE AND TYPE OF WIRE

• Max.Ampere rating vs size for copper conductor
• value are not more than 3 conductor in raceway or cable 

WHAT WILL HAPPEN IF ALL ABOVE IS NOT CONTROL? 

•  The number of injuries among electrical workers will be increase

•  There will be no more electrical workers because they to afraid that they will die.
  
  
  • It will been traumatized for the victims
  • Half of their body will been burn and died.
  • They also will lose some of their sensation.
  
  
  
  
  
  
  
  
  
  
  
  
  Conclusion
  
  •Adequate electrical safety in health-care facilities and systems can be achieved at moderate costs by combining:
  
  1.Good power-distribution system
  2.Well designed equipment
  3.Periodic maintenance and testing of power systems and equipment
  4.Modest training program for medical personnel
  
  
   
  
  
  
  
  
    REFERENCE
  •  https://www.lanl.gov/safety/electrical/docs/elec_hazard_awareness_study_guide.pdf
  •  http://ecmweb.com/content/safety-patrol
  •  http://www.atlantictraining.com/blog/electrical-safety-training-powerpoints/
  •  http://www.hobbyprojects.com/electrical-hazards/conclusion-preventing-electrical-hazards.html
  •  http://www.ece.ucy.ac.cy/courses/ece473x665/slides/8.pdf