1. Hygroscopicity chak tak a nei. Fire-resistant cables hian mineral insulating materials magnesium oxide ang chi an hmang tlangpui a, chu chuan melting point sang tak leh kangmei laka invenna tha tak a nei thin. Mahse, mineral insulating materials drawback pakhat chu an hygroscopicity chak tak hi a ni a, chu chuan boruak atanga tuihna an lak chhuah awlsam phah a ni. Cable-a insulation layer-in tui tam tak a lakluh chuan a insulation performance a nghawng ang a, chu chuan kangmei laka invenna leh cable electrical performance a ti tlem thei
2. Cable-a component thenkhat chu nghet takin an seal lo. Moisture emaw tui emaw chu cable end atanga cable insulation layer emaw cable protective layer atang emaw a lut ang a, chutah chuan cable accessory tin ah a lut ang a, chu chuan power system pumpui chu a tichhe vek ang.
