Tutorial on Safe Man hour Calculations and lost time hours
Today's post is all about the safe man hour calculations at the site. Safe Man-hours shall be calculated from 1st of every month to end of the month.
The man hours worked per month shall be calculated based on the formula:
Total Man hours Worked in a day = (No. of Workmen worked in a day x No. of Man hours worked in a day ) + O.T
O.T = (No of O.T hours x No of workmen on overtime)
Total man hours worked for the month = Sum of total man hours
worked in a day for the month.
Lets See An example for the Safe Man hour Calculations
If 10 workmen working for 8 hours on 1st day without overtime
Total Man hours Worked on 1st day = 10 x 8 = 80 hrs
If 15 workmen working for 8 hours on 2nd day without overtime
Total Man hours worked on 2nd day = 15 x 8 =120 hrs
.
.
If 50 workman working for 8 hours on 31st day without overtime
Total Man-hours worked on 31st day = 50x 8 = 400 hrs
Total man hours for this month = 80+120+.......................+400 (hrs)
= value
To Calculate Man hours lost :
Man hours lost by each and every workman shall be calculated and the cumulative shall be added.
For example:-
No of man-hour lost by one workman for the month = 5 hrs
No of man-hour lost by second workman for the month =3 hrs
Total Man hours Lost = 8 hrs
To Calculate Cumulative Man hours Worked :
Cumulative man hours worked =
Cumulative Man hours worked for the previous month + Total Man hours worked for the present month.
