How to deal with the problems of cable connector in use
How to deal with the problems of cable connector in use
Inner semiconductor shielding treatment
Where the cable body has an inner shielding layer, the inner shielding layer of the connector of the conductor part of the crimping pipe must be restored when making the connector, and a part of the inner semiconductor shielding of the cable shall be reserved, so that the inner shielding of the connector on the connecting pipe can be connected with each other, so as to ensure the continuity of the inner semiconductor, so as to evenly distribute the field strength at the connector.
Treatment of external semiconductor shielding
The outer semiconductor shield is a semi-conductive material that plays the role of uniform electric field outside the insulation of cables and cable joints. Like the inner semiconductor shield, it plays a very important role in cables and joints. The external semiconductor port must be neat and uniform, and it is also required to make a smooth transition with the insulation, and add a semiconductor belt around the cable joint to connect with the semiconductor shield outside the cable.
Treatment of cable reaction cone
During construction, the reaction force cone with accurate shape and size as possible has equal potential distribution on the whole cone. When making the reaction cone of cross-linked cable, special cutting tools are generally used, or it can be slightly heated with low fire and cut with a sharp knife. After it is basically formed, it is scraped with 2mm thick glass, and finally polished with sandpaper from coarse to fine until it is smooth.
Metal shielding and grounding treatment
The function of metal shield in cables and joints is mainly used to conduct cable fault short-circuit current and shield the electromagnetic interference of electromagnetic field to adjacent communication equipment. Under the operation state, the metal shield is at zero potential under good grounding state. When the cable fails, it has the ability to conduct short-circuit current in a very short time. The grounding wire shall be reliably welded, the metal shield and armor strip on the cable body of the box at both ends shall be firmly welded, and the grounding of the terminal head shall be reliable.