TTD系列穿刺线夹主要用来连接绝缘电缆,也可用于独立的照明及其它光源类线路，壳体和JBC及CPB绝缘穿刺线夹一样，也是采用防紫外线的材料制成。It is not only used to connect the (or separate) the self-supporting insulated wire, but also used to separate lighting circuit, the body materials are UV-resistant.