Copyright 2004 arcaware
Risk Assessment Example;
Voltage is 6.6kV gives a risk rating of 3
Task is racking a breaker gives a risk rating of 3
Arc energy is 25 cal/cm² gives a risk rating of 3
If a remote racking mechanism is now used for the task;
Voltage is 6.6kV gives a risk rating of 3
Task is racking a breaker gives a risk rating of 3
Arc energy is 3.5 cal/cm² gives a risk rating of 3
Voltage is 6.6kV gives a risk rating of 3
Task is racking a breaker gives a risk rating of 3
Arc energy is 25 cal/cm² gives a risk rating of 3
If a remote racking mechanism is now used for the task;
Voltage is 6.6kV gives a risk rating of 3
Task is racking a breaker gives a risk rating of 3
Arc energy is 3.5 cal/cm² gives a risk rating of 3
In this case the final risk is 27
From the table above, full arc
protection is required
In this second example the final
risk rating is 18. So now a
reduced level of PPE can be
worn
From the table above, full arc
protection is required
In this second example the final
risk rating is 18. So now a
reduced level of PPE can be
worn
