Line post composite insulators for overhead distribution lines less than or equal to 75 kV
This is the first edition of CSA C411.6, Line post composite insulators for overhead distribution lines.
This Standard covers the requirements for line post composite insulators used on overhead distribution lines operating at nominal voltages up to and including 75 kV. Line post insulators support the line conductor horizontally or vertically. They are subjected to tensile, cantilever, and compressive loads.
These composite insulators are intended to operate in a service environment within a temperature range of -50 to 50 °C.
This Standard deals with composite insulators having a core with metal fittings and a housing and sheds.
The core has resin-impregnated glass fibres. The core is protected with a UV resistive coating. The metal fittings are aluminum, steel, or iron.
In CSA standards, shall is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; should is used to express a recommendation or that which is advised but not required; and may is used to express an option or that which is permissible within the limits of the standard.
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Annexes are designated normative (mandatory) or informative (nonmandatory) to define their application.