A cable wrapping intermediate joint and a manufacturing process thereof
A technology for intermediate joints and cables, applied in cable joints, equipment for connecting/terminating cables, etc., can solve problems such as affecting the high-voltage shielding contact of the cable conductor core, thermal breakdown at the high-voltage shielding electrode, affecting the safety and stability of the cable, etc. , to achieve the effect of long-term safe operation, not easy to breakdown, and high waterproof sealing performance
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[0091] The utility model relates to a cable wrapping intermediate joint, which is used for the butt joint of two sections of cables.
[0092] Such as figure 1 Schematic diagram of the three-core cable structure in the prior art, figure 2 The connection diagram of two same-phase single-phase cables is as follows:
[0093] The three-core cable in the prior art includes a sheath 11, armor 12, liner 13 from the outside to the inside, and the liner 13 includes three strands of single-phase cables, such as figure 1 Three strands of single-phase cables A, B, and C shown in ; each single-phase cable includes a metal shielding layer 14, an insulating shielding layer 15, a main insulating layer 16, an inner shielding layer (not shown in the figure) and a conductor from outside to inside Core 17.
[0094] Wrapped intermediate joints include joint wraps connecting the same-phase single-phase cables, and protective wraps outside the same-phase single-phase cable joint wraps.
[0095] ...
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