Change List for this Rule

 

Original Version

Rule 59.3-F

 

59.3-F.    Designation of Common Neutral

 

In common neutral systems, where the common neutral line conductor is installed in a primary pin position, it shall be designated by an approved noncorrosive metal tag having a minimum diameter of not less than 1 inch upon which shall be permanently imprinted the letters “CN” not less than 5/16 inch in height.  Said tag shall be attached securely to and maintained on the common neutral conductor at each pin position of line arm and buck arm at a distance not more than 12 inches from the face of the crossarm on the climbing side of each pole and so installed as to be clearly visible at all times.

 

Strikeout and Underline Version

Rule 59.3-F

 

59.3-F.    Designation of Common Neutral

 

In common neutral systems, where the common neutral line conductor is installed in a primary pin position, it shall be designated by an approved noncorrosive at each pin position with the letters “CN”. A weather- and corrosion-resisting material shall be used and the letters shall be clearly legible.

 

Optional Marking methods are:

 

(1)    A metal tag having a minimum diameter of not less than 1 inch upon which shall be permanently imprinted the letters “CN” not less than 5/16 inch in height.  Said tag shall be attached securely to and maintained on the common neutral conductor at each pin position of line arm and buck arm at a distance not more than 12 inches from the face of the crossarm on the climbing side of each pole and so installed as to be clearly visible at all times.  surface of the conductor supports.

 

(2)    Solid letters not less than 3 inches in height or a sign showing the letters “CN” not less than 3 inches in height, solid or with letters cut out there from. Said letters or signs shall be placed on the face of a crossarm, suitable for attaching the letters or signs, directly beneath the common neutral support, or said letters or signs shall be placed on the surface of the pole beneath the common neutral support.

 

Final Version

Rule 59.3-F

 

59.3-F.    Designation of Common Neutral

 

In common neutral systems, where the common neutral line conductor is installed in a primary pin position, it shall be designated at each pin position with the letters “CN”. A weather- and corrosion-resisting material shall be used and the letters shall be clearly legible.

 

Optional Marking methods are:

 

(1)    A tag having a minimum diameter of not less than 1 inch upon which shall be permanently imprinted the letters “CN” not less than 5/16 inch in height.  Said tag shall be attached securely to and maintained on the common neutral conductor at a distance not more than 12 inches from the surface of the conductor supports.

 

(2)    Solid letters not less than 3 inches in height or a sign showing the letters “CN” not less than 3 inches in height, solid or with letters cut out there from. Said letters or signs shall be placed on the face of a crossarm, suitable for attaching the letters or signs, directly beneath the common neutral support, or said letters or signs shall be placed on the surface of the pole beneath the common neutral support.