Salam.. huhu.. This week, I follow metering units. The work scopes were to check meter whether ok or not, install new meter and replace meter. Before “round” to find house, Pakcik Sidi and Abe Min brief me some part of meter and the function of meter. There are two type of meter that 1 phase meter and 3 phase meter. Besides that, meter divided into two; electronic and mechanical meter.
1 PHASE METER
Usually using 60A cut out and 30m fuse. Use one cut out and one fuse. There are 4 wires that connect to Tnb meter. 2 phase wire( 1 from street pole to meter and 1 from meter to db inside house) and 2 neutral wire ( 1 from street pole to meter and 1 from meter to db inside house).
3 PHASE METER
Usually used 100A cut out and 60m Fuse. Use 3 cut out and 3 fuse. For house that used larges load. 3 phase wire that indicate red, yellow and blue. 1 neutral wire color with black.
Used in commercial building or biggest building that used larges of load. That power supply are direct connection from underground cable. All task relation with CT meter will refer to TNB kota bharu. Every day, many meters should install. This meter very cheaper than lct meter. So, tnb responsible to fulfill the customer demand. Hehe..