Designation
1. The minimum mandatory operations within the framework of the preventive maintenance and maintenance of the pylons are:
2. Tightening the bolts
3. Check that there are no missing elements in the structure
4. Verification that the bars are not deformed, pierced or split
5. Unblocking the water flow holes (bases of the tubular frames, horizontal tubular crosspieces flattened at the heart)
6. NB: only applies to tubular pylons
7. Replacement of missing fasteners and screws (bolts, nuts, lock nuts, washers)
8. Replacement of bolts and screws subject to oxidation
9. Verification of the verticality of the structure using a “theodolite” type device
10. Tightening the upper arm of the fall arrest system and lifeline on the ladder upright and securing the ladder
11. Carefully tighten and check the anchor bolts
12. Tightening, fixing and connection of the various elements of the lightning rod downpipe and the strips
13. Verification & standardization of the tightening of the various cables with fixing on the appropriate supports (RF cable, electrical, earth, collar, cable clamp, …..)
14. Fixing IF (FH) cables and feeders
15. Checking and correcting the tightness of the Feeders/antennas/straps/RF cables
16. Tightening of supports and FH antennas
17. Checking feeder grounding
18. Pylon earth value measurements with a professional earth meter;
19. Checking and correcting the tightness of the hoppers
20. Verification and standardization of earthing installations
21. Measurement and correction of earth resistance values and the resistance must be strictly less than 05 Ohms;
22. Verification of the operation of the night beaconing system
23. Systematic change of beacon lamp in case it is defective. The lamp is the responsibility of the supplier and this lamp must be of good quality and capable of supplying at least 10 candelas and a lifetime of 30,000 hours of operation (supplier’s document in support).
24. Verification and restoration of the antenna support surge protection and grounding system.