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