| Abstrak/Abstract |
The use of polymer materials such as epoxy resin as
electrical insulators on transmission and distribution lines have
been developing to replace porcelain and glass insulator. Several
advantages of using epoxy resin as an insulating materials are its
low density, better dielectric properties and it has higher volume
resistivity than porcelain and glass and can be made at room
temperature so it is economically more advantageous.
Environmental factors such as ultraviolet radiation intensity,
temperature, humidity, rain and pollution, especially in a tropical
climate may affect the insulator performance. The degradation
mechanism of the quality of insulating surfaces can be
determined using the length tracking, leakage current and the
depth of surface damage insulation. These parameters were
compared to determine the index of tracking (Ti).
In this work, the materials used are made of diglycidyl ether
of bisphenol -A (DGEBA), metaphenylene diamine (MPDA),
silane and silica as a filler. Dimension of the tested material is 120
mm x 50 mm x 5 mm. The method of measurement used
Inclined-Plane Tracking (IPT) accordance with IEC 587:1984
standard with NH4Cl as contaminants.
The results of the research showed that the mechanism of
surface degradation begin from button electrode. Damage level
and time to damage also degradation rate were influenced by UV
duration subjected on test sample. Tracking index of epoxy resin
materials being influenced by duration of UV radiation on test
samples. |
