Electrical Performance of RTV SIR Coatings

The ability of a coating to suppress surface activity has been investigated both in laboratory and field conditions [6, 9, 10, 13, 15, 16, 19-31, 35-41, 62, 96-112], In the lab, usually salt fog tests and rotating wheel dip tests are applied, involving various stress scenarios (fog and dry periods, fog conductivity, test duration, electrical stress, etc.). [Pg.13]

Leakage current is the parameter used for the material evaluation in both cases and usually an investigation of the material condition is performed by using appropriate methods (contact angle, ESCA, FTIR, etc.). In the field, leakage current and material analysis methods are also incorporated for the coating evaluation. [Pg.13]

In both cases, the coating ability to suppress the surface activity is strongly correlated to the hydrophobicity recovery process. Material formulation in combination with the stresses applied and their influence on the LMW migration mechanism are the crucial parameters that determine the application efficiency and material lifetime. [Pg.13]

Many maintenance methods have been implemented in order to ensure the fault-free performance of a substation [Pg.13]

Grainger, W. Stevenson, Power System Analysis, 1st ed., McGraw-Hill, 1994. [Pg.13]

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