Section R. 408.15351 - Portable electric powered toolsRule 5351.
(1) A portable electric powered tool shall not be used in a tree near an energized conductor where the tool or cord could possibly come in contact with the conductor.(2) Unless a tool is powered by a nonelectric power source or is double insulated and so labeled, it shall be grounded.(3) An extension cord shall have a connected ground wire, be free of defects and have no metal sockets.(4) A portable electric powered tool operator shall: (a) Use such a tool as prescribed in the occupational safety standards commission standard, Part 38. Hand and Portable Powered Tools, being R 408.13801 to R 408.13882 of the Michigan Administrative Code.(b) Prevent the cords from being entangled, damaged or cut by blades and bits.(c) Not lay an extension cord in water, unless it is not spliced and is waterproof with waterproof connections.Mich. Admin. Code R. 408.15351