case study 3 electric safety

 Introduction 

Assalamualaikum & have a nice day everyone. Today we are given the new task for Chapter 7. This group discussion consist of 3 members, Imuhammad nur safuan bin sahdan ,muhammad mustaqim bin kamarzaman,and muhammad fairuz bin mohamad mashudi.

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.
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• 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.

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• 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.
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• 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
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  • 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

  
  
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• https://www.osha.gov/Publications/electrical_safety.html
• https://www.osha.gov/SLTC/electrical/standards.html
• https://www.osha.gov/dte/grant_materials/fy09/sh.../electrical_safety_manual.pdf