Change List for this Rule


Original Version

Rule 21.3

 

21.3    Guy means a tension member (a solid wire or stranded wires) used to withstand an otherwise unbalanced force on a pole, crossarm or other overhead line structure (see Rule 21.11 for definition of messenger).

 

A.    Overhead Guy means a guy extending from a pole, crossarm or structure to a pole, crossarm, structure or tree and is sometimes called a span guy.

 

B.    Anchor Guy means a guy which has its lower anchorage in the earth and is sometimes called a sidewalk, truss or ground guy.

 

C.    Exposed Guy means a guy of which any part is less than 8 feet horizontally from the vertical plane of any supply conductor of more than 250 volts (see Figure 564 , and Appendix G, Figure 44 ).

 

D.    Guy in Proximity means a guy of which any part is both within a vertical distance of less than 8 feet from the level of supply conductors and a radial distance of less than 6 feet from the surface of a wood pole or structure (see Figures 563 , 564 , 565 , 566 , and Appendix G, Figure 45 ).

 

Strikeout and Underline Version

Rule 21.3

 

21.3    Guy means a tension member (a solid wire or stranded wires) used to withstand an otherwise unbalanced force on a pole, crossarm or other overhead line structure (see Rule 21.11 for definition of messenger).

 

A.    Overhead Guy means a guy extending from a pole, crossarm or structure to a pole, crossarm, structure or tree and is sometimes called a span guy.

 

B.    Anchor Guy means a guy which has its lower anchorage in the earth and is sometimes called a sidewalk, truss or ground guy.

 

C.    Exposed Guy means a guy of which any part is less than 8 feet horizontally from the vertical plane of any supply conductor of more than 250 volts (see Figure 564 , and Appendix G, Figure 44 ).

 

D.    Guy in Proximity means a guy of which any part is both within a vertical distance of less than 8 feet from the level of supply conductors and a radial distance of less than 6 feet from the surface of a wood pole or structure (see Figures 563 , 564 , 565 , 566 , and Appendix G, Figure 45 ).

 

21.1    Ground Connection means the equipment used in establishing a conducting path between an electric circuit or equipment and earth. A ground connection consists of a ground conductor, a ground electrode and the earth (soil, rock, etc.) which surrounds the electrode.

 

Final Version

Rule 21.3

 

21.3    Ground Connection means the equipment used in establishing a conducting path between an electric circuit or equipment and earth. A ground connection consists of a ground conductor, a ground electrode and the earth (soil, rock, etc.) which surrounds the electrode.