Similar calculations is ok for industries… Things will get complected when you want to calculate the exact working hours including over time of employees.Timing deductions of employees who were on leave etc.
So better to take the exact working hours with the help of an electronic punching card or let the people dealing with the manpower (Basically HR/ER/IR) calculate the man hour worked and give to safety people for further SR calculations.
Please find the attached file. Hope this helps…
|No. of man days lost x 10 6|
|Severity rate = ———————————————-|
|No. of man-hours worked|
|Total no of injuries – 12|
|lost time for injury average – 15 days|
|Total no of employees – 250|
|total work hrs in a day 8hrs|
|weekly 6 working days|
|so how i can calculate man hours worked per month or year||Remove your holidays from the total month days. Ex. 4 sundays deducted from total 31 days. Hence taken as 27 days working days
Deduct any other holidasy in your organization if its there
|SR in the Month of Aug’13||317.4603|
|Similar wise do for year.|