We offer an deal in wide range of Power Lighting Arrestors. 9kv, 12kv, 30kv, 33kv, 66kv, polymer & ceramic lighting arrester 5kn,10kn. Depending on the application, it may be more prudent to choose either a porcelain insulator or a polymer insulator.
Please use the charts below to compare the different types of insulators:
Porcelain Insulator Advantages |
Porcelain Insulator Disadvantages |
- Very long life, made of inorganic materials and do not age.
- Very reliable, with a proven track record. Over 80 years of experience
- Have higher leakage distance profiles
- Easier to maintain, can be coated and washed
- Have more flexibility in length with more units
- Easy to identify a damaged unit
- Strong in compression
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- Heavy, leading to more expensive shipping and more difficult handling
- Could have hidden defects that are hard to detect
- Vandalism is common from thrown rocks, or from being shot at
- Pin erosion, and coupling hardware corrosion
- Cement growth cracking
- Weaker in tension
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Polymer Insulator Advantages |
Polymer Insulator Disadvantages |
- Lighter in weight, almost a 90% weight reduction. This weight reduction leads to easier handling, reduced shipping and installation costs.
- Better performance in high contamination areas
- Overall better handling of shock loads
- More aesthetically pleasing the eye, and smaller profile
- More resistant to vandalism and breakage due to the forgiving nature of polymer
- Strong in tension
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- More susceptible to damage from arcing or flash overs
- Less experience in the field, still changing as more polymer products come out
- Harder to check for inconsistencies or damages
- Dimensions vary
- Storage concerns
- Dry arc distance is lower
- Interface bonding issues
- Weaker in compression
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