Michigan Administrative Code
Department - Labor and Economic Opportunity
MIOSHA
General Industry and Construction Safety and Occupational Health Standards
Construction Safety and Health Standard
Part 15 - EXCAVATORS, HOISTS, ELEVATORS, HELICOPTERS, AND CONVEYORS
GENERAL PROVISIONS
Section R. 408.41515 - Power line clearances; generally
Current through Vol. 24-16, September 15, 2024
Rule 1515.
(1) When working in proximity to power lines, all equipment covered by this part shall maintain clearances as prescribed in Table A "Minimum Clearance Distances."
(2) When traveling with no load in proximity to power lines, all equipment covered by this part shall maintain clearances as prescribed in Table B "Minimum Clearance Distances While Traveling with No Load."
(3) The employer shall designate an employee to observe the clearance and give timely warning if it is difficult for the operator to maintain the prescribed clearance by visual means.
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TABLE A MINIMUM CLEARANCE DISTANCES |
|
|
Voltage (nominal, kV, alternating current) |
Minimum clearance distance (feet) |
|
up to 50 |
10 |
|
over 50 to 200 |
15 |
|
over 200 to 350 |
20 |
|
over 350 to 500 |
25 |
|
over 500 to 750 |
35 |
|
over 750 to 1,000 |
45 |
|
over 1,000 |
(as established by the utility owner or operator or registered professional engineer who is a qualified person with respect to electrical power transmission and distribution) |
|
Note: The value that follows "to" is up to and includes that value. For example, over 50 to 200 means up to and including 200kV. |
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TABLE B MINIMUM CLEARANCE DISTANCES WHILE TRAVELING WITH NO LOAD |
|
|
Voltage (nominal, kV, alternating current) |
Minimum clearance distance (feet) while traveling |
|
Up to 0.75 |
4 |
|
Over .75 to 50 |
6 |
|
Over 50 to 345 |
10 |
|
Over 345 to 750 |
16 |
|
Over 750 to 1,000 |
20 |
|
Over 1,000 |
(as established by the utility owner or operator or registered professional engineer who is a qualified person with respect to electrical power transmission and distribution) |
