General Order 128

Section IV

Requirements for Communication Systems

42    Manholes and Handholes

The provisions in this rule relating to manholes shall also be applicable to vaults and trenches (permanent cable trenches).

42.1        Definitions
42.2        Maintenance and Inspection
42.3        Material and Strength
42.4        Size and Shape
42.5        Openings
42.6        Drainage
42.7        Covers
42.8        Location
42.9        Foreign Pipes
42.10      Explosion Protection