Original Version
Rule 74.4-D
74.4-D. From Poles
Class T conductors of not more than 750 volts and of the same polarity, potential and system when carried on poles supporting no other conductors are not required to obtain the clearance of 15 inches from center line of pole (Table 1, Case 8), but shall comply with the clearance of 3 inches from surface of pole (Table 1, Case 9). The attachment of clearance arms for either supply or communication service drop does not affect the pole clearance of Class T conductors which are carried on one side or top of a pole.
Where Class T conductors are carried on more than one side of jointly occupied poles the clearance of Table 1, Cases 8 and 9, shall apply and a climbing space conforming to Rule 54.7 shall be provided.
Strikeout and Underline Version
Rule 74.4-D
74.4-D. From Poles
Class T conductors of not more than 750 volts and of the same polarity, potential and system when carried on poles supporting no other conductors are not required to obtain the clearance of 15 inches from center line of pole (Table 1, Case 8), but shall comply with the clearance of 3 inches from surface of pole (Table 1, Case 9). The attachment of clearance arms for either supply or communication service drop does not affect the pole clearance of Class T conductors which are carried on one side or top of a pole.
Where Class T conductors are carried on more than one side of jointly occupied poles the clearance of Table 1, Cases 8 and 9, shall apply and a climbing space conforming to Rule 54.7 shall be provided.
Class T conductors of not more than 750 volts passing unattached shall clear non-climbable street lighting and traffic signal poles, or standards, including mastams, brackets, and lighting fixtures: a radial distance of 15 inches as specified in Table 1. Case 10, Column C; except when the conductors are mechanically protected from abrasion by materials specified in Rule 22.2. Such mechanical protection shall extend 15 inches in each direction along the cable from centerline of pole, standard, attaching mastarms, or fixtures; whether passing above, below or alongside. The conductors shall be installed in such a manner so as not to interfere with light distribution from lighting fixtures and shall not hamper workmen changing lamps or maintaining equipment.
Final Version
Rule 74.4-D
74.4-D. From Poles
Class T conductors of not more than 750 volts and of the same polarity, potential and system when carried on poles supporting no other conductors are not required to obtain the clearance of 15 inches from center line of pole (Table 1, Case 8), but shall comply with the clearance of 3 inches from surface of pole (Table 1, Case 9). The attachment of clearance arms for either supply or communication service drop does not affect the pole clearance of Class T conductors which are carried on one side or top of a pole.
Where Class T conductors are carried on more than one side of jointly occupied poles the clearance of Table 1, Cases 8 and 9, shall apply and a climbing space conforming to Rule 54.7 shall be provided.
Class T conductors of not more than 750 volts passing unattached shall clear non-climbable street lighting and traffic signal poles, or standards, including mastams, brackets, and lighting fixtures: a radial distance of 15 inches as specified in Table 1. Case 10,Column C; except when the conductors are mechanically protected from abrasion by materials specified in Rule 22.2. Such mechanical protection shall extend 15 inches in each direction along the cable from centerline of pole, standard, attaching mastarms, or fixtures; whether passing above, below or alongside. The conductors shall be installed in such a manner so as not to interfere with light distribution from lighting fixtures and shall not hamper workmen changing lamps or maintaining equipment.