Ans 1) According to OSHA, incidence rate (IR) = Recordable cases x 200000 /number of labor x work time
Assume work rate as 8 hrs per day, then work time = 365 x 8 = 2920
=> IR = 11 x 200000 / (75 x 2920)
= 10.04
Ans 2) According to OSHA table 12-2, for a power line between 50 kV - 345 kV , clearance distance required is 10 ft. So, for power line of 210 kV , clearance distance is 10 ft
Ans 3) According to OSHA maximum limit of sound exposure without hearing protection if exposure is 6 hrs/day is 92 decibel
5:18 IILTE H1Sum193311.docx Homework 1, Summer 2019, AREN/CE 3311, Construction Engineering, Professor Ghandehari Problem 1.A construction...
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