1、 热缩电缆头处理工艺是目前运用最广泛的，制作成本低，技术成熟。热缩电缆头在接地和收缩工艺方面使用的是耐热绝缘材料，温度不能过高，否则会破坏绝缘。在电缆的屏蔽处理工艺上，由于半导体层去除的数量较多，导致电缆头三相间没有电磁屏蔽，也容易发生相位放电，可以通过热缩绝缘材料起到屏蔽作用。热缩绝缘材料可以完全包裹住线芯，缺点是弹性小，容易破裂。1. The heat shrink cable head treatment process is currently the most widely used, with low production costs and mature technology. The heat shrink cable head uses heat-resistant insulation materials in grounding and shrinkage processes, and the temperature cannot be too high, otherwise it will damage the insulation. In the shielding process of cables, due to the removal of a large number of semiconductor layers, there is no electromagnetic shielding between the three phases of the cable head, and phase discharge is also prone to occur. The shielding effect can be achieved through heat shrinkable insulation materials. Heat shrink insulation material can completely wrap around the wire core, but its disadvantage is that it has low elasticity and is prone to breakage.


2. Cold shrink cable heads have developed rapidly in recent years, with high production costs and a service life of about 2 years. For grounding and shrinkage processes, the cold shrink cable head does not require welding and can be directly fixed with spring steel clips. The insulation layer material has elastic shrinkage and does not need to be baked with fire, reducing the impact of temperature control errors on the quality of cable heads. In terms of shielding layer processing technology, the insulation layer removed from cold shrink cables is relatively small, and there is electromagnetic shielding between three-phase cables. Cold shrink cable material has good elasticity, is not prone to wrinkles, and is not easily broken under collision.


Cold shrink cable head and heat shrink cable head treatment processes have their own advantages and disadvantages. Users should choose a reasonable cable head treatment process according to their own needs to achieve power supply stability.