ML050660063
| ML050660063 | |
| Person / Time | |
|---|---|
| Site: | Brunswick  |
| Issue date: | 03/15/2002 |
| From: | - No Known Affiliation |
| To: | Emch R NRC/NRR/DRIP/RLEP |
| Emch R, NRR/DRIP/RLEP, 415-1590 | |
| References | |
| MNT-TRMX-00051 | |
| Download: ML050660063 (3) | |
Text
AUTHORIZED COPY Document title
-- Transmission Line Equipment and Right of Way Maintenance Schedules Document number MNT-TRMX-00051 Appuies to:
Transmission Department - Carolinas and Florda Keywords:
maintenance, transmission line maintenance 1.0 Introduction The schedules shown in this procedure are the result of examining existing company standards at CP&L and Florida Power, industry practices, and new technologies that enable predictive maintenance techniques. These intervals were established to ensure that transmission line equipment and systems are pro-actively maintained to ensure efficiency and reliability.
2.0 Scope This procedure places the maintenance intervals in one location. This provides a quick means to determine the maintenance interval for a given type of equipment. This also permits required maintenance interval changes to be made in only one procedure. This procedure shall be followed in accordance with the Transmission Maintenance Procedures Policy (MNT-TRMX-00000).
3.0 Safety & Environment For the protection of our employees and the environment, employees should stay abreast of, and adhere to all safety rules, all established work practices, and all environmental compliance practices while performing maintenance on this equipment.
4.0 General Information Interval 4.1 Task CP&L Florida Power 4.1.1 Aerial Patrols (Includes line equipment & right of way inspection)
Minimum of two (2) times a year. Approx-imately every six (6) months Minimum of three (3) times a year.
Approximately.
every four (4) months. (Can be reduced to less than (3) times a year with VP -
Transmission approval.)
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AUTHORIZED COPY Interval Task CP&L Florida Power 4.1.2 Ground Patrols
- 1. Steel/Concrete structures (110 - 500kV)
- 2. Wood structures (69-138kV)
- 3. Wood structures (230kV) 60 months 24 months, every fifth structure with a wooden crossarm will have climbing inspection performed 24 months, every fifth structure with a wooden crossarm will have climbing or bucket inspection performed 60 months 60 months detailed climbing inspection performed 60 months detailed climbing or bucket inspection performed.
4.1.3 Manually operated transmission line switches (CP&L 230kV, Florida Power 115kV)
- 1. Functional test
- 2. Visual inspection
- 3. Infrared thermography 24 months 24 months 36 months 24 months 24 months 12 months 4.1.4 Wood pole ground-line inspection and treatment 4.1.5 Metallic structure coatings 10 years 10 years
- 1. Galvanized structures 1st coating after 15 to 25 Same as CP&L years, subsequent coat-ings approx. 20 yrs if coat-ed with Keeler & Long
- 2. Painted structures 1st coating after 15 to 20 Same as CP&L years, subsequent coat-ings approx. 20 yrs if coat-ed with Keeler & Long I MNT-TRMX-00051 I
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Interval Task CP&L Florida Power 4.1.6 Wood pole life extension As necessary As necessar) and replacement 4.1.7 Right of Way
- 1. Re-clearing (mowing) 36 months 36 months
- 2. Re-clearing (hand cutting) 36 months 36 months
- 3. Tree trimming 24 months 24 months
- 4. Danger tree cutting 5 to 9 years*
5 to 9 years*
- Each line has an individual danger tree cutting cycle. The cycle is prescribed by evaluating the right of way width, the type of line construction, the type of easement, and the vegetation.
4.1.8 Re-lamp transmission tower 36 months N/A beacons (Cape Fear River crossing)
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