GOVERNMENT OF INDIA North Eastern Railway ... - Tenders India

Dy.CSTE/Con/ IZN/02 of 2011 North Eastern Railway
All care should be taken in handling cable drums with a view to ensure safety not of
the cables but also of the working party handling them. The man should not be allowed to
brake the cable drum by standing in front but only from side.
3.11. REWINDING AND REDRUMING OF CABLES.
i) If for any reason it is found necessary to rewind a cable on a drum, cable drum
with a proper barrel diameter not less than of the original drum should be
chosen.
ii) The drums should be mounted on cable jacks during rewinding operations
using proper size of spindles passed through the flange holes which will
not buckle under the lead. The cable should not be bent opposite to the set it is
having already.
iii) In the redruming operations the full and empty drums should be so turned that
the cable passes from the bottom of the original set as little as possible\
iv) Replace all the laggings on the cable drum.
3.12 CABLE LAYING:
3.12.1 It is advisable to employ the same people at the same place or job while cable is being
laid.
3.12.2 Before commencement of the laying inspection of the trench and inspection of
protection works should be carried out so as to ensure their conformity with the
specification. The trench bottom should be clean, smooth and free of small stone.
When the soil contains stone or pieces of rock and therefore cannot be raddled, sieved
earth about 10 cm thick should be used both for the bedding on which the cable is
laid and for covering the cables.
3.12.3 The cable drum should be brought as close to the cable trench as possible. it should be
lifted with the aid of cable jacks firmly mounted on a support of stone or wood . The
spindle should be minimum of 55mm diameter and lower edge of drum should be 5 to
10 cm above the ground.
3.12.4 Where necessary the cable drum may be placed at such a point so that 2/3 of the cable
is laid directly and the balance in other direction. Care should be taken in such a case
to see that there is no kinks or loops in the cable.
3.12.5 The wooden battens on the drums should be carefully removed shortly prior to laying
and before the drum is mounted on the jack. The nails on the lagging should be
carefully removed.
3.12.6 While rolling a cable drum for laying the drum shall be supported on an axle running
through its center the height of the axle being such that the end frames are free to
rotate and do not touch the ground at any point. The cable shall be carefully uncoiled
by gently pulling the cable assisted as necessary by carefully turning the drums quick
pulling of the cable or turning the drums shall be avoided at all costs. Each cable drum
shall be braked while laying is in progress to prevent sharp bending or buckling,
particularly when the cable coils are sticking together.
3.12.7 The following personnel shall be employed near the drum.
1 Man : for handling the brakes.
1 Man : for permanent observation of the uncoiling of cable.
Signature of Tenderer(s)
Date…………………
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