Insulators

ANSI 52-4 Brown Porcelain Suspension Disc, 70 kN

Product Overview

Brown-glazed ANSI 52-4 porcelain suspension disc with 70 kN rated electromechanical load and 320 mm creepage.

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Parameter	Unit	Value
Colour		Brown-glazed
ANSI class		52-4
Disc diameter	mm	254 ± 11.7
Spacing	mm	146 ± 5
Creepage distance	mm	320
Dry arcing distance	mm	197
Power-frequency puncture voltage	kV	110
Power-frequency dry flashover	kV	80
Power-frequency wet flashover	kV	50
Positive critical impulse flashover	kV	125
Negative critical impulse flashover	kV	130
Rated electromechanical failing load	kN	70
Tension proof load	kN	35
Impact strength	N·m	6