JUNCTION AND TERMINATION MARSHALLING BOXES TO CABLE OPERATING
All junctions, termination
and marshalling boxes shall be of substantial sheet steel construction, having
enclosure classification in accordance and fitted with external fixing lugs and
finished in accordance with this Specification for cleaning, painting and
finishing. The boxes shall allow ample room for wiring, with particular regard
to the deployment of wires from the point of entry.
Outdoor boxes shall have internal
anti-condensation heaters and stay bars fitted to doors. Indoor boxes shall be
designed such that any condensed water cannot affect the insulation of the
terminal boards or cables. No cables shall be terminated into the top of
outdoor boxes unless specifically approved by the Engineer.
Each box shall be complete
with suitably inscribed identification labels.
Any outdoor boxes, cubicles
etc containing instruments or meters shall have glazing suitable to permit the
visual examination of these.
Covers shall be arranged for
padlocking and padlocks with keys shall be supplied. Cast iron boxes shall have
bolted lids requiring the use of special keys or spanners for removal.
All boxes shall be provided
with adequate earthing bars and terminals.
Notwithstanding information
supplied by the Engineer, the Contractor shall, as each box is completed or at
intervals as requested by the Engineer, supply to the Engineer copies of
accurate termination or destination charts showing the as-fitted arrangement of
cables and cores in each box. The Contractor shall, following the Engineer’s
approval, fit one plastic laminated copy of the appropriate chart to the
interior of each box.
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