Test for composite suspension insulator
As one kind of composite polymer insulator, the composite suspension insulator is used on overhead transmission lines with line voltages in the range 10kv to 1000kv. The composite suspension insulator can also be called composite suspension long rod insulator. The composite suspension insulator can be particularly in the heavy polluted areas. In this article, we are focusing on the test for composite suspension insulator.
The test for composite suspension insulator:
The test for composite suspension insulator is intended to verify the suitability of the design, materials and method of manufacture (technology). A composite suspension insulator design is defined by the following elements:
The method of the test for composite suspension insulator:
1. Material of the end fittings, their design and method of attachment (excluding the coupling);
2. Layer thickness of the housing over the core (including a sheath where used);
3. Diameter of the core.
When doing a test for composite suspension insulator, the composite suspension insulator is submitted to the design tests, it becomes a parent insulator for a given design and the results shall be considered valid for that design only.
composite suspension insulator
This tested parent insulator defines a particular design of composite suspension insulators which have all the following characteristics:
a) Same materials for the core and housing and same manufacturing method;
b) Same material of the fittings, the same connection zone design, and the same housing-to- fitting interface geometry;
c) Same or greater minimum layer thickness of the housing over the core (including a sheath where used);
d) Same or smaller stress under mechanical loads;
e) Same or greater diameter of the core;
f) Equivalent housing profile parameters, see Note (a) in Table 1.
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