R 408.41515 Power line clearances; generally.

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. 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. 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) EXCAVATORS