1. Power supply chu cut nghal rawh .
Cable lum lutuk eng pawh i hmachhawn hmain himna tur ngaihtuah hmasa la, power supply chu tihtlem nghal rawh.
2. Investigation chhan:
Current-Carrying capacity enfiah rawh: cable a overload em tih finfiah rawh. Load hian cable carrying capacity a pelh chuan a lian zawk- cable lian zawk thlak tur a ni.
Cable sheath dinhmun enfiah rawh: Sheath chhiatna emaw, tar emaw chuan wire chu a ti lum thei a ni. A chhiat tawhna hmun chu tihtlem a ngai a, re-insulation a ngai bawk.
Joints enfiah rawh: Cable joint tha lo hi a lum lutuk vang a ni tlangpui. Joint te hi a nghet taka crimp a nih leh nih loh leh connection hian a mamawh a tlin leh tlin loh enfiah a ngai a ni.
