CN103944034A - Manufacturing method for cable intermediate joint - Google Patents

Abstract

The invention relates to the field of metallurgical industry high-voltage cables, in particular to a manufacturing method for a cable intermediate joint. The manufacturing method comprises the steps of cutting an outer plastic sleeve, sawing off an armor layer, stripping a cable protective sheath, stripping a semiconductor cloth belt, crimping a conductor, cleaning the insulating surface, wrapping an insulator, merging cable cores, and wrapping a waterproof layer. The cable intermediate joint is simple and compact in structure, good in insulation, resistant to high temperature, resistant to acid and base, good in sealing waterproofness, and capable of reliably running for a long time.

Description

A kind of cable intermediate joint manufacture method

Technical field

The present invention relates to metallurgy industry high-tension cable field, relate in particular to a kind of cable intermediate joint manufacture method.

Background technology

Along with popularizing of power cable chemical industry journey, cable fault rate is also along with increasing, and a host of facts prove, most cable fault is relevant with electric cable accessories, particularly cable intermediate joint, did the complex process in the middle of cable in the past, and required technique high when end socket, easily cause that moisture and moisture enter, dielectric strength is reduced, and sealing lead overlong time, makes cable body sheath excess Temperature, burn out insulation, operation is caused a hidden trouble.

Summary of the invention

The object of the present invention is to provide a kind of cable intermediate joint manufacture method, solve the defect that prior art exists.

In order to realize above-mentioned object, adopt following technical scheme: a kind of cable intermediate joint manufacture method, it is characterized in that, concrete grammar comprises the steps:

S1. cable two ends needs being connected is overlapping, and than good position, excision plastic wrapper, is generally 600mm left and right from end to cuing open the distance of moulding mouthful;

S2. mouthful steel first is amputated from cuing open to mould, and from saw kerf, turnkey band and alternate filler are excised;

S3. in the time divesting cable cover(ing), strap is not cut off, be using its rollback to cable root as for subsequent use;

S4. the plastic tape outside cable shield and paper tape are peelled off, tightened with metal wire in the place of preparing cut-out shielding, then screen is divested and cut off, and will be by outside otch wedge angle fold back;

S5. the semiconductor strap on core insulating barrier is peeled off and rollback root for subsequent use, the insulation of cable insulation core is divested by the length of joint sleeve, then insert tube connector crimping, and tube connector jut frustrated to flat, wiped clean with file;

S6. will be whittled into taper shape, the clean insulating surface of cloth pattern of moistened with gasoline near the insulation of tube connector termination;

S7. after waiting insulating surface decontamination solvent to volatilize completely, with semiconductor strap by bare exposed conductor looping one deck of core junction, the suitable long insulation that holds of method with self-adhering rubber band partly repeatedly to wrap, be wound on semiconductor strap with the aluminium strip of thick 0.1mm, and there is the overlapping of 20mm left and right with the shielding at cable two ends, tighten two ends with multiply tinned wird again, then on shielding conductor, intersect grafting with annealed copper wire;

S8. the core of having wrapped is closed up, fill and make it reinstatement with strap, and tightening with wide strap is wrapped;

S9. become after the long clavate shape of two end topers with the wrapped water-tight layer of self-adhering rubber band, then use plastic tape outside it wrapped three layers.

Compared with prior art, cable intermediate joint of the present invention is simple and compact for structure, and good insulating is high temperature resistant, resistance to acids and bases, and water-tight is good, can keep moving reliably and with long-term.

Embodiment

Provide a most preferred embodiment below:

A kind of cable intermediate joint manufacture method, is characterized in that, concrete grammar comprises the steps:

S1. cable two ends needs being connected is overlapping, and than good position, excision plastic wrapper, is generally 600mm left and right from end to cuing open the distance of moulding mouthful;

S2. mouthful steel first is amputated from cuing open to mould, and from saw kerf, turnkey band and alternate filler are excised;

S3. in the time divesting cable cover(ing), strap is not cut off, be using its rollback to cable root as for subsequent use;

S4. the plastic tape outside cable shield and paper tape are peelled off, tightened with metal wire in the place of preparing cut-out shielding, then screen is divested and cut off, and will be by outside otch wedge angle fold back;

S5. the semiconductor strap on core insulating barrier is peeled off and rollback root for subsequent use, the insulation of cable insulation core is divested by the length of joint sleeve, then insert tube connector crimping, and tube connector jut frustrated to flat, wiped clean with file;

S6. will be whittled into taper shape, the clean insulating surface of cloth pattern of moistened with gasoline near the insulation of tube connector termination;

S7. after waiting insulating surface decontamination solvent to volatilize completely, with semiconductor strap by bare exposed conductor looping one deck of core junction, the suitable long insulation that holds of method with self-adhering rubber band partly repeatedly to wrap, be wound on semiconductor strap with the aluminium strip of thick 0.1mm, and there is the overlapping of 20mm left and right with the shielding at cable two ends, tighten two ends with multiply tinned wird again, then on shielding conductor, intersect grafting with annealed copper wire;

S8. the core of having wrapped is closed up, fill and make it reinstatement with strap, and tightening with wide strap is wrapped;

S9. become after the long clavate shape of two end topers with the wrapped water-tight layer of self-adhering rubber band, then use plastic tape outside it wrapped three layers.

The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.

Claims (1)

1. a cable intermediate joint manufacture method, is characterized in that, comprises the steps:

S1. cable two ends needs being connected is overlapping, and than good position, excision plastic wrapper, is generally 600mm left and right from end to cuing open the distance of moulding mouthful;

S2. mouthful steel first is amputated from cuing open to mould, and from saw kerf, turnkey band and alternate filler are excised;

S3. in the time divesting cable cover(ing), strap is not cut off, be using its rollback to cable root as for subsequent use;

S4. the plastic tape outside cable shield and paper tape are peelled off, tightened with metal wire in the place of preparing cut-out shielding, then screen is divested and cut off, and will be by outside otch wedge angle fold back;

S5. the semiconductor strap on core insulating barrier is peeled off and rollback root for subsequent use, the insulation of cable insulation core is divested by the length of joint sleeve, then insert tube connector crimping, and tube connector jut frustrated to flat, wiped clean with file;

S6. will be whittled into taper shape, the clean insulating surface of cloth pattern of moistened with gasoline near the insulation of tube connector termination;

S7. after waiting insulating surface decontamination solvent to volatilize completely, with semiconductor strap by bare exposed conductor looping one deck of core junction, the suitable long insulation that holds of method with self-adhering rubber band partly repeatedly to wrap, be wound on semiconductor strap with the aluminium strip of thick 0.1mm, and there is the overlapping of 20mm left and right with the shielding at cable two ends, tighten two ends with multiply tinned wird again, then on shielding conductor, intersect grafting with annealed copper wire;

S8. the core of having wrapped is closed up, fill and make it reinstatement with strap, and tightening with wide strap is wrapped;

S9. become after the long clavate shape of two end topers with the wrapped water-tight layer of self-adhering rubber band, then use plastic tape outside it wrapped three layers.