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Specification for 11kv & 22kv pin insulator and 11kv disc insulators

11kv & 22kv pin insulator and 11kv disc insulators are distribution insulators and transmission insulators used for over head power lines, and divided into porcelain insulators and polymer insulators.

11kv disc insulators

11kv disc insulators
11kv disc insulators are manufactured, designed and tested in accordance with ANSI C29.2 and C29.11 standards providing good insulation and mechanical resistance.

These insulators are designed in brown or grey color made from porcelain, red or grey color insulators made from polymer materials.

11kv & 22kv pin insulator

11kv & 22kv pin insulator
These insulators are generally used for distribution poles lines. The design colors are as well as disc insulators, which is manufactured as per ANSI C29.5 and C29.6 specifications

For ensuring insulators quality, insulator manufacturers shall be done some insulator tests
a) Visual examination.
b) Verification of dimensions.
c) Visible discharge test.
d) Impulse voltage withstand test
e) Impulse voltage flashover test
f) Dry and wet power frequency voltage withstands test
g) Dry and wet power frequency flashover voltage test
h) Temperature Cycle test.
i) 24 Hours mechanical failing load test (for disc. insulators only) or mechanical performance test
j) Electro mechanical failing load test (for disc. insulators only)
k) Mechanical failing load test (for pin insulators only)
l) Puncture test.
m) Porosity test.
n) Galvanizing test (for disc. insulators only)

Tender usually required insulator marking and packaging. 11kv & 22kv pin insulator and 11kv disc insulators are designed as per insulator specifications or customer’s reuiqrments.

 

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