English
The list of elements to be controlled variates according to local needs but can be summarized in:
a. Checking the presence of stubs in the strings.
b. Checking the presence of pollution at the surface of the insulator.
c. Checking the corrosion of metallic parts.
The first inspection’s step can be fulfilling from the ground with no need of instruments, with an enhanced worker’s safety in live line operations and for a very low cost of inspection for the entire service life of the line.
TGI – A binary behavior
Sediver® Toughened Glass insulators can only exist in two well defined conditions: intact or shattered. It shows a binary status with no intermediate cracked or punctured state.
Therefore, it is easy to quickly and infallibly inspect strings of toughened glass, with no need for instruments other than the naked eye. No need for highly qualified and costly training to learn how to inspect.
Infallible, easy visual inspection
On the following video, please look for the broken piece
A fail-safe inspection
- No risk of wrong interpretation: you get what you see
- Safe live-line working
At a glance visual inspection
- No need for any testing instrument
- No need for climbing the tower: inspection from the ground.
- No risk of hidden defect
- Easiest maintenance procedure
No need for immediate maintenance
- No risk of line drop
- Residual mechanical strength: 80% of the mechanical rating, guaranteed over prolonged periods of time even with in-service dynamic loads and temperature cycling. The broken piece doesn’t represent a weak point in the string
- Residual electrical strength: Avoiding internal puncture and forcing overvoltage induced discharges externally.
Discover our complete range of Toughened Glass insulators
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