Solve the problem of
cable connector in use
1. Internal semiconductor shielding treatment
Where the cable body has an inner shield layer, the inner shield layer of the conductor part of the crimping tube must be restored when the joint is made, and a part of the inner semiconductor shield of the cable must be set aside so that the inner shield of the connector on the connecting tube can communicate with each other. Ensure the continuity of the internal semiconductor, so that the field strength at the joint is evenly distributed.
2. Treatment of external semiconductor shielding
The outer semiconductor shield is a semi-conductive material that acts as a uniform electric field outside the insulation of the cable and the cable joint. Like the inner semiconductor shield, it plays a very important role in the cable and the joint. The external semiconductor ports must be neat and uniform, and smooth transition with insulation is required, and a semiconductor tape is added to the cable joint to connect with the semiconductor shield outside the cable body.
3. Treatment of cable reaction force cone
During the construction, the reaction force cone with the exact shape and size has the same potential distribution on the entire cone surface. When making the cross-linked cable reaction cone, a special cutting tool is generally used, or it can be slightly heated with a slight fire and carried out with a sharp knife. After cutting and basic shaping, use 2mm thick glass to scrape, and finally use sandpaper to polish from coarse to fine until smooth.
4. Metal shielding and grounding treatment
The role of metal shielding in cables and connectors is mainly to conduct cable fault short-circuit currents and to shield electromagnetic interference from electromagnetic fields on nearby communication equipment. In operation, the metal shield is at zero potential under a well-grounded state. When the cable fails, , It has the ability to conduct short-circuit current in a very short time. The grounding wire should be reliably welded, and the metal shields and armor tapes on the cable body of the box at both ends should be firmly welded, and the grounding of the terminal head should be reliable.
