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The Advantages of Polymer Insulators over Porcelain Insulators

The Advantages of Polymer Insulators over Porcelain Insulators will be shown through weight, fragibility, packing & transport, installation, handling, maintenance cost, mechanical failure, Manufacturing Process, etc.

Polymer Insulators   Porcelain Insulators

The Advantages of Polymer Insulators over Porcelain Insulators:

The Advantages of Polymer Insulators over Porcelain Insulators
GENERAL COMPARISION
FACTOR
CERAMICS
POLYMER INSULATORS
WEIGHT
Heavy in weight, approx wt of 400 kv is about 135 kgs.
90% Lighter than Porcelain Insulators, but offer an equal to better strength. Approx Wt of 400 kv is less than 14 kgs
FRAGIBILITY
HIGHLY FRAGILE  to Shock & Vibration
NOT FRAGILE TO SHOCKS
PACKING & TRANSPORT
RISKY & EXPENSIVE
EASY & ECONOMICAL
INSTALLATION
RISKY, EXPENSIVE AND More Labour
required
Very EASY & ECONOMICAL
HANDLING
DIFFICULT
EASY
MAINTENANCE COST
HIGH
LOW
VANDALISM
MORE SUSCEPTIBLE
HIGHLY RESISTANT
BREAKAGES & SECONDARYDAMAGE
Highly Fragile - 10 to 15% breakages are reported during transportation, storage and installation
Composite Insulators are flexible and therefore, highly resistant to breakages.
TECHNICAL CAMPARISON
MECHANICAL  FAILURE
REDUCTION IN MECHANICAL STRENGTH AND SEPERATION DUE TO PINGS GETTING ERODED.
SINGLE  PIECE HENCE NO SUCH PROBLEM
RESISTANCE TO FLASHOVERS &PUNCTURES
LOW
HIGH
ANTI TRACKING AND EROSIONRESISTANCE
Very low, Poor Tracking Resistance
Excellent Tracking Resistance avoids erosion or tracking of the housing material.
DIELECTRIC STRENGTH
LOWER THAN POLYMER
EXCELLENT INSULATION PERFORMANCE
CONTAMINATION & POLLUTION
HIGHLY AFFECTED
NOT AFFECTED AND HAS LONGER LIFE
HYDROPHOBICITY
Non hydrophobic, Porcelain surface forms water film on the surface making easy path leading to More flash overs
The Hydrophobicity properties of Silicon Rubber Provide excellent insulating behavior and Resists Wetting by forming Beads of water without the need of washing or greasing even in humid or polluted climates. Hence low failure rate combined with low overall operating and maintenance costs.
SELF CLEANING QUALITY
NO. -Dirt, Sand, Salt & Snow are easily Attracted
YES.
Due to Hydrophobicity recovery characteristic
TENSILE STRENGTH
Good
Excellent due to crimping technology
MAINTENANCE
NEEDS MAINTENANCE LIKE CLEANING, WASHING AND GREASING
NO MAINTENANCE IS REQUIRED
DESIGN
Design Flexibility is limited. Requires larger and heavier towers for installation and more space.
Polymer Insulator Design allows for adaption to suit specific needs such as creepage distance. Results in space saving and lower cost
Manufacturing  Process
Porcelain insulators require long Manufacturing process leading to Long delivery Time. Manufacturing Process causes pollution & health risk.
Pollution Free, safe,  Short Process time Leading to short delivery periods
safety
Porcelain insulators are susceptible to explosion &  Breakages, due to high fragile properties , stone throwing etc.
Composite Insulators provide very high level of safety, superior flexibility and strength. Not susceptible to explosion. No breakages due to stone Throwing etc.


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Orient is an international line post insulator manufacturer and supplier of high quality porcelain line post insulators and porcelain pin post insulator.
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