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The intelligent insulator testing
instrument developed by Beijing Shenlang Electronics Co.Ltd.
has been used for the first time in the country to measure
the insulation resistance by exercising pulse electric
pressure on the tested insulators of a charged power line,
which realized the quantitative testing of online
insulators. The new instrument may detect the insulator that
has a leakage but not yet broken down or in a critical
damaged condition. The new technique will make the
establishment of testing database for clients maintenance
information management system and associated scientific
management possible.
The trial applications of
the new instrument in Beijing, Guangzhou and Qingdao last
July have confirmed its reliable performance, easy operation
and accurate testing results. Capable for testing
the resistance of every piece of insulators, the instrument
has found the solution to the technical difficulty that the
existing insulator testing instruments manufactured both at
home and abroad cannot perform online charged quantitative
testing. In addition, technicians may tell the insulation
status of the entire power line based on the data collected
by the new instrument and avoid breaking — down
accidents caused by improper or missed examination.
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