Middle connector process of oil-immersed cable lapping

Abstract

The invention discloses a middle connector process of oil-immersed cable lapping, which comprises the steps of reserving taped cable insulation 25mm, removing the redundant winding, and wrapping the reserved winding with 7-8 layers of a transparent PVC protective belt as the temporary protection; removing the redundant taped insulation and inter-phase stuffing, then wrapping a layer of transparent PVC on the insulated cable conductor in a half overlapping way as the temporary protection, and bending the wire core at 24-26 degrees; stripping the insulating layer at the end of each wire core, and threading the stripped wire core through a connecting pipe for crimping; lapping a polytetrafluoroethylene belt outside the silver paper of the connecting pipe, and then lapping an epoxy resin glass tape in a half overlapping way on the polytetrafluoroethylene belt. The middle connector process of the invention can be operated safely and reliably. With simplicity, convenience and reliable performance, the middle connector process decreases the labor intensity, shortens the power-failure time and improves the economic benefit, the construction technological level of cables and the work efficiency when in manufacture.

Description

technical field [0001] The invention relates to the improvement of the power cable technology, in particular to the oil-immersed cable wrapping intermediate joint technology. Background technique [0002] In the past, the process of cable wrapping intermediate joints: this process is complex and requires highly skilled staff. When smashing lead pipes, it is required to be even, and two people must do it at the same time. High technology is required, and lead sealing is easy to produce trachoma, causing moisture and moisture to enter. The insulation strength is reduced, and the asphalt insulating glue leaks outside. If the lead sealing time is too long, the temperature of the lead package of the cable body will be too high, and the insulation will be burned out, which will cause hidden dangers to the operation. If this work is carried out frequently, it is easy to cause lead poisoning. When the asphalt insulating glue is boiled, the temperature of the asphalt insulating glu...

AI Technical Summary

Problems solved by technology

[0002] In the past, the process of cable wrapping intermediate joints: this process is complex and requires highly skilled staff. When smashing lead pipes, it is required to be even, and two people must do it at the same time. Requires high technology, lead sealing is easy to produce trachoma, causing moisture and moisture to enter

The insulation strength is reduced, and the asphalt insulating glue leaks out

If the lead sealing time is too long, the temperature of the lead package of the cable body will be too high, which will burn out the insulation and cause hidden dangers to the operation.

Frequently doing this work can easily lead to lead poisoning. When the asphalt insulating glue is boiled, the temperature of the asphalt insulating glue is required to be high. When the temperature is too high, the insulating glue will cause partial carbonization and reduce its insulation strength