|
FACTORS |
CERAMIC |
COMPOSITE |
|
Resistance to flashovers in Polluted atmosphere. |
Low |
High |
|
Resistance to puncture |
Puncturable
(Class: B insulators) |
Not puncturable |
|
Resistance to
Cracking and Erosion in Polluted
atmosphere. |
Low |
High |
|
Contamination & Pollution |
Highly affected |
Performance not affected |
|
Hydrophobicity |
Non hydrophobic. |
Unique Hydrophobicity character. |
|
Self cleaning property |
Due to Glaze and inclination of sheds. |
Due to Hydrophobicity recovery
characteristic. |
|
Maintenance |
Needs maintenance like cleaning, washing,
greasing. |
No maintenance is required |
|
Weight |
More |
10%
to 35% of Ceramic Insulator |
|
Resistance to breakage and Vandalism |
Breakable in Vandalism prone areas |
Unbreakable |
|
Artificial Pollution Test |
Mandatory |
Not
applicable |
|
Power Arc Test |
Mandatory |
Not
mandatory |
