Original Version

Rule 57.4-A

57.4-A.    Above Ground (see Rule 54.4-A)

Strikeout and Underline Version

Rule 57.4-A

57.4-A.    Above Ground (see Rule 54.4-A)

(1)    Messengers and Insulated Cables: The basic clearances specified in Rule 37, Table 1 for conductors, as modified by provisions of Rule 54.4–A , are applicable to messengers and insulated cables (See Rule 57.8 ).

(2)    Grounded and Bonded Messengers and Insulated Cables: The basic clearances specified in Rule 37 , Table 1, Column D , are applicable to grounded cables having metallic sheaths, and to effectively grounded messengers (see Rule 57.8 ).

Final Version

Rule 57.4-A

57.4-A    Above Ground

(1)    Messengers and Insulated Cables: The basic clearances specified in Rule 37, Table 1 for conductors, as modified by provisions of Rule 54.4–A , are applicable to messengers and insulated cables (See Rule 57.8 ).

(2)    Grounded and Bonded Messengers and Insulated Cables: The basic clearances specified in Rule 37, Table 1, Column D , are applicable to grounded cables having metallic sheaths, and to effectively grounded messengers (see Rule 57.8 ).