Table of Contents
Advertisement
10
General maintenance plan
The general maintenance plan is described in the next Table 4.
Component
Composite insulators
Gas SF6
Toroids
Gas
valves,
electrical equipment
and
connecting
cables
Current terminals
Grounding terminals
Nuova Via di Piano Comprensorio Vulcano
Sesto San Giovanni, MI 20099 Italy
Tel. 02-24105.001
Time base
3 Months
1/2 Year
When plant is off
Table 3 – Composite insulator intensive maintenance plan
Time base
See Chapter 9
Inspection and maintenance
Monthly
Check the pressure
Clean the surface and check for
When plant is off
scratches or deformation.
Check the fixing bolts to the flanges.
Clean the cubicle.
Check for gas leaks.
Check
When plant is off
gauge and DILO Type valves.
Check terminal blocks, wiring, cables
and cable glands.
Check and clean the junction box.
Check for evidence of hot spots.
Check the terminals and tighten the
connecting bolts to the bushing
When plant is off
flange.
Check the cable clamps and the
bolting to the terminal.
Check for evidence of hot spots.
Check the connection integrity and
When plant is off
the bolt locking.
Verify
grounding.
X
X
X
X
Description
functionality
of
pressure
the
effectiveness
of
IS 2653 GB
Page 16 of 18
X
Notes
See Chapter 9
Record the data
Anticipate the controls if
UV
camera
corona inception.
Check all gas joints to
the DILO Type valves on
the bushing.
Check the cables and the
cable tray to the bushing.
Anticipate the controls if
IR camera reveals hot
spots.
Contact
GE
Solutions RPV in case of
evidence of hot spots
during the inspection.
Contact
GE
Solutions RPV in case of
the
evidence of hot spots.
reveals
Grid
Grid
Advertisement
Table of Contents
