| 摘要 |
<p>After cutting out the sheathing (2) of a cable (1) at a certain length l0 of the damaged area the cable cores (3) are covered consecutively by a layer (4) of heat-resistant band of the same length, by a thermoplastic layer (5a) of the same length, by a net-shaped layer (6) of a length l1, by a thermoplastic layer (5b) of a length l2 and by a layer (7) of heat-resistant band of a length l3. Then the cable is placed in a mould (8) of a length l4. Before its heating the diameter D of the sheathing (2) at the repaired section equals to 1.15-1.2 of the diameter d of its undamaged sections (2b) and (2c) the above-mentioned lengths interrelating as: l3>l4>l1>l2>l0. The mould (8) with its internal diameter being equal to 0.85-0.9 is pressed during the softening of the thermoplast (5) until the diameter of the sheathing (2) at the repaired section becomes equal to d and then is cooled down. After hardening the sheathing (2), the layer (7) of heat-resistant band is removed. The method may be used everywhere when a quick repair of a cable is required including explosion risk cases. </p> |
