At the commercial affair, it responsible to the costumer account where all of the information of the billing accounts were organized and updated here. Also cut off electricity for non pay user were also done here, where team will respond to unpaid bill even though warning notice had been delivered. In the service and meter section the responsibility were installing new meter or upgrade the system. The job scope was to estimate, making cost sheet, services and install meter.
The metering section is responsible for the installation and replacing of meters, which gauge the electricity use by either the Ordinary Power Consumer (OPC) or the Large Power Consumer (LPC)
Monday, May 17, 2010
(6/5/2010-17/5/2010) services
Services are lines that tap off from mains (overhead or 5 foot way) to feed one consumer or group of consumer. A 5 foot way main is a cables or PVC cables which run along the eaves or wall of terrace houses or 5 foot way of shop houses. 7.5 meter poles are used, however if clearance are insufficient 9 meter poles may be used if there is insufficient ground clearance at the services cross the road and when the length of services exceed the maximum permissible length of the conductor used. In situation such as road crossing and telephone line crossing, where clearance cannot be obtained by using standard height poles, an extended pole support mat be used. Services are connected to 5 foot way mains using junction boxes. Junction boxes can be used up to a maximum size of 19/1.53. Connection of services to consumer meter board, the phase conductor is terminated at cut outs and neutral is terminated at neutral link. There are two sizes of cut outs 60 amp (for conductor sizes 7/2.14 mm) and 100 amp (for conductor sizes 19/1.53 mm and 19/2.14 mm)
Material used for the service installation 1. Dead end clamp 2. ‘J-Hook’ 3. Bolt and nut 4. ‘Pendakap D’ 5. Insulated piercing connector ( IPC ) 6. Wonpiece insulator 7. Suspension clamp 8. Chasing 9. Neutral link 10. 30A and 60A cut out fuse for single-phase and three-phase 11. Material and equipment that related with service installation.
Wednesday, May 5, 2010
(27/4/2010-5/5/2010) SAVR -(Low Voltage Overhead System )
The SAVR are responsible to fix the end connections from the TNB Distribution supply cables to the consumer’s meter. This section basically receives the electrical fixing infrastructure.
Basically, this section handles, maintains and repairs the Low Voltage (LV) fixings in the area so:
1. The supply is stable and safe for use.
2. Preventing supply disruptions and faults on the fixings
3. Maximizes the lifespan of the fixings.
This is done via a routine maintenance schedule such as:
1. Patrolling and making visual checks on the span of overhead cables
2. Cleaning/cutting tree trunks which are in the way of overhead cables every three months
3. Numbering/renumbering poles that carry overhead cables
4. Monitoring/Taking load readings from low voltage users
5. Redistributing and splitting the supply from overloaded energy suppliers
6. Tightening contacts on the SAVR fixings
7. Changing old wooden and steel poles with newer concrete poles.
8. Changing old bare aluminum cables with ABC cables for locations that are problematic for the bare cables.
Other jobs include doing operations, switching, isolating and commissioning SAVR fixings to repair faults and maintenance purposes. If needed, this section can request for additional equipment from the Bachok Open Store yard, where most of the stuff is stored and sent back to be scrapped.
