Insulator Selection And Specification Guides
Design guides, comparison guides and reference material on toughened glass suspension insulators, written to be useful before you talk to a supplier.

Toughened Glass Versus Porcelain And Composite Insulators
The three materials fail in different ways, and the difference in failure behaviour matters more to an operator than the difference in catalogue specification.
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How To Select A Suspension Insulator Strength Class
Mechanical failing load is the number in the class name. Tension proof load is the number you should be sizing against.
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Fog Type Insulators Creepage And Pollution Levels
How 400 mm and 450 mm creepage profiles change a polluted string without changing its length.
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IEC And GB Insulator Designations Explained
How to read LXP-160, U160BL, LXWP2-120 and U120BP2, and why two different codes can describe the same unit.
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Packing And Shipping Toughened Glass Insulators
Most breakage happens between the plant and the tower, not on it. What to specify with the order so it does not.
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How Toughened Glass Insulators Are Made
From glass batch to marked unit, and what each production stage is there to prevent.
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Who are these guides written for?
Line designers, substation engineers, procurement teams and distributors who need to turn a site condition and a load case into a class designation.
Will these articles tell me not to buy glass insulators?
Where that is the honest answer, yes. The comparison guide sets out where composite or porcelain units are the better choice, because a string specified wrongly costs more than the order is worth.
Can I get these as PDFs?
The specification tables are available as datasheet PDFs in the Download Center. The guides themselves stay on the site so they can be corrected when something changes.
Still Not Sure Which Class To Specify
Send the line data and the pollution assessment. We will tell you which column of which table fits, and where our range does not cover what you need.