General Order 128
Section IV
Requirements for Communication Systems
42.4
Size and Shape
Manholes shall be constructed to provide sufficient working space
so that the cables and equipment therein can be properly and safely installed,
supported, operated and maintained.
Manholes shall not be constructed with smaller dimensions than those required
by Public Utilities Code, Sec.
8051
(Also see
Appendix B, Fig. 9, and Appendix D.)
Handholes shall be of sufficient size to house safely the required cables,
splices, connectors and associated apparatus. Cables shall be arranged so
that they can be safely installed and maintained.