Armored cable and cable assembly using same

Abstract

The invention relates to an armored cable and a cable assembly using the same. The armored cable comprises a cable line which has a cable core and a metal armor layer. At least one end of the cable line is equipped with a metal armor layer grounding line connected with the metal armor layer. A first encapsulation shell is injection-molded at the joint of the metal armor layer grounding line and the metal armor layer and at the corresponding periphery of the cable core. The metal armor layer of the armored cable of the invention is led out by the metal armor layer grounding line before leaving the factory. The metal armor layer is led out by the metal armor layer grounding line before leaving the factory, and then, the first encapsulation shell is injection-molded at the joint of the metal armor layer grounding line and the metal armor layer and at the corresponding periphery of the cable core. The first encapsulation shell ensures the insulating and sealing performance at the metal armor layer lead-out position, and can ensure the structural strength at the corresponding position. When the armored cable is used on site, the metal armor layer grounding line is grounded directly, and there is no need to strip the metal armor layer on site. The efficiency of on-site wiring is improved, and potential failure caused by secondary wiring is avoided.

Description

Technical field [0001] The invention relates to an armored cable for signal transmission and a cable assembly using the armored cable. Background technique [0002] The State Grid Corporation of China proposed the "Research Framework for Key Technologies of New Generation of Transformer Substations" in 2012, which is a new plan and research of State Grid Corporation for the future development of smart grid projects currently under construction. With the goal of "highly integrated system, reasonable structure layout, advanced technology and equipment, economy, energy saving and environmental protection", it adopts intelligent equipment with "high reliability, high integration, and long life", and has "support for control integration, operation and maintenance integration, plug-in Ready-to-use, panoramic information, and other functions, with the features of “digitalization of information on the whole site, networking of communication platforms, standardization of information shari...

AI Technical Summary

Problems solved by technology

[0003] The cables in the prior art are all wire-type cables made on site. The cables include a shielding layer and a metal armor layer on the cable core. The laying and connection of conventional substation cables are carried out on site after the equipment is in place. Strip the wires, and then press the terminals on the shielding layer and the metal armor layer for grounding connection. This kind of operation needs to seal and insulate the stripped cables through adhesive tape. On the one hand, this operation has a long construction period and will affect the progress of cable laying. On the other hand, the on-site sealing and insulating treatment cannot guarantee the quality of operation, nor can it be accurately tested, and it is easy to leave quality risks

Images