State of the conductors (presence of broken or frayed, or existence and state of joints and connections, etc.). New highways or roads under or next to the line. New buildings under or next to the line.
Inspection criteria Progress of construction works along or near the line Insulator chains (broken insulators, number of discs in chain, conductors off pin insulator, etc.). General state of the pole, cross-arms and tie- straps. Pole base covered by silt, residues and water retention. Soil erosion at the base of the pole.
Inspection criteria Accessibility of the poles. State of earth wire and connection to the ground. Trees near the line.
Frequency It is recommended that this inspection be done once every six months . However, every area can establish the appropriate frequency depending on the criticality of the area and past experience.
MAINTENANCE PROCEDURES Maintenance Engineer shall receive inspection Reports from Inspection Supervisor and schedule for the maintenance works. Maintenance Engineer Conducts Network improvement studies and refers to Chief Engineer Design for appropriate design and reinforcement. Maintenance Engineer shall assign the job to Maintenance supervisor.
MAINTENANCE PROCEDURES The supervisor shall book required materials and the team shall start maintenance preparations. Where maintenance requires system outage the Supervisor shall apply for isolation from the System Controller as per approved system operation procedures and assign the job to Maintenance team – Refer to WI:- KPLC1/6C/QMS/OP/02/WI-01
MAINTENANCE PROCEDURES Where no isolation is required, Supervisor shall assign the job to Maintenance team. The maintenance team shall use appropriate Maintenance Handbook and work instruction to execute. The Maintenance Supervisor shall confirm if all identified defects are rectified or if the reinforcement has been executed as designed and where OK, he shall restore supply; in liaison with System Controller as per the normalization of Network, Ref. WI – KPLC1/6C/QMS/OP/02/WI-04
MAINTENANCE PROCEDURES Where maintenance/reinforcement is not completed, details will be recorded, restore supplies and reschedule the outstanding works. The Maintenance Supervisor shall confirm supply after restoration.
THE END THANK YOU FOR LISTENING
You've reached the end of your free preview.
Want to read all 23 pages?
- Spring '18
- Professor Obura Oluoch
- Electricity distribution, Preventive maintenance, Maintenance Supervisor