For storing of a cable drum visual inspection should be made to detect any damage suffered during transport. Manufacturer’s seals on both ends of the cable should be inspected by removing the battens partially. The condition of armoring, serving, sheathing of the upper layers and the projecting end of the cable should be inspected for any signs of scoring, scratches, dents, mechanical injuries or leakage of impregnation oils.
It the above visual inspection proves satisfactory the following special cares should be taken –

1. Both ends of the cable should be protected from moisture by means of plumbed lead caps in case of PILC cables and sealed plastic caps in case of PVC and XLPE cables.
2. The cable drum should be stored on well drained, hard-packed soil or preferably having a concrete surface which will not cause the drum to sink and so lead to flange rot and extreme difficulties in moving the drums.
3. The cable should be protected from direct rays of the sun.
4. All cable drums should be stored leaving sufficient space between them for air circulation.
5. During storage the drum should be rolled to an angle of 90° once every three months.
6. The cable drums must stand on battens placed directly under flanges. The drums should not be stored on the flat i.e. with flanges horizontal.

1. What is called “Barrier joint” of cable ?
2. Interview Question of Underground Cable
3. What are varnished cambric insulated cables ?
4. What do you mean by XLPE cable and what are its advantages over conventional cables ?
5. What do you mean by MIND cable and where is it used ?
6. What do you mean by the term “Sheath losses” ?
7. What is the procedure of reducing the sheath losses in sheaths of the three single core cables in a 3-phase system ?
8. What do you mean by the term “Dielectric losses” ?
9. What do you mean by thermal resistance of a single core cable ?
10. What are the load conditions of an underground cable ?
11. what special cares are to be taken for storage of cable drum ?
12. What are the methods of cable laying ?
13. What is soil thermal resistivity ?
14. What is proximity effect ?
15. What are the procedures to be adopted for determining the types of cable faults ?
16. What precaution should be taken while taken a cable through trenches in the following locations (a) Road crossing, (b) Railway crossing & (c) Crossing of water mains ?
17. What is called “Heat shrinkable joint” of cable?
18. What can be the causes of damage to PVC cables and paper insulated cables?