Section 17(b) in The M.P. Licensing Board (Electrical) Regulations, 1960
(b)Underground cables. - Simple calculations and general principles of laying cables direct in ground, in troughs and pipes; handling, bending, jointing, plumbing, under ground and above ground junction boxes. Distributing board and pillars. Joint box compound melting of compounds, and filling boxes with compounds. Testing and fault location.
