Specifications

171
NLUO PMC CONTRACTOR
SIGNATURE AND SEAL SIGNATURE AND SEAL SIGNATURE AND SEAL
All precaution must be taken while laying the conduits on the slabs, R.C. walls, columns etc. and the contractor shall rectify at
his own cost if any defects are found during process of Tendered Drawing cables through the concealed pre laid conduits.
Each PVC / Polythene conduit shall be provided with protruding length of not less than 9 inches on free end of the conduits.
There shall be no intermediate joints in one straight run of conduit.
All ceiling outlets shall be terminated in a round C.I. / G.I. circular box / deep box to suit standard size ceiling rose or / and
rectangular C.I. / M.S. junction box or fan hook box as the case may be.
It will be mandatory for the contractor to get the layouts approved by the Engineer-in-charge / Architect when the conduits are
laid and bound to steel reinforcement rods, before he can release the work for casting of floor / roof.
9. Connector Boxes, Draw-in-Boxes, junction Boxes :
These shall be constructed from 16 SWG M.S. sheet and have M.S. cover. Minimum size for connector boxes in 6” x 4” and
for Draw in Boxes 4” x 4”.
10. Fan Hook Boxes :
These shall be 100 mm (4”) dia x 75 mm (3”) deep, constructed from 16 SWG M.S. sheet, and provided with one 12 mm dia
M.S. rod 300 mm (12” long).
11. Painting :
outside of wall switch boards, connector boxes and draw-in-boxes and other C.I. / M.S. accessories shall be painted with two
coats of anti-rust paint in addition to other painting instruction given elsewhere.