Original Version

Rule 21.10

21.10    Partial Underground Distribution means a supply system of overhead primary conductors supported in vertical configuration, without, crossarms, on nonclimbable, non-joint-poles, and with underground secondary distribution facilities (see .App. G, Fig. 88).

Strikeout and Underline Version

Rule 21.10

21.10    Partial Underground Distribution means a supply system of overhead primary conductors supported in vertical configuration, without, crossarms, on nonclimbable, non-joint-poles, and with underground secondary distribution facilities (see .App. G, Fig. 87).

Maintenance means work done on any line or any element of any line for the purpose of extending its life (excepting the replacement of the supporting poles or structures) and includes the replacement, for any reason, of crossarm, pins, insulators, wires, cables messengers, etc., but does not contemplate the addition of elements (excepting pole stubs and guy wires) which will change the identity of the structure (see Rule 12).

Final Version

Rule 21.10

21.10    Maintenance means work done on any line or any element of any line for the purpose of extending its life (excepting the replacement of the supporting poles or structures) and includes the replacement, for any reason, of crossarm, pins, insulators, wires, cables messengers, etc., but does not contemplate the addition of elements (excepting pole stubs and guy wires) which will change the identity of the structure (see Rule 12).