ANSI 57-4 High Voltage Tie Top Porcelain Line Post Insulator

ANSI 57-4 High Voltage Tie Top Porcelain Line Post Insulator It is a ceramic high-voltage line post insulator that complies with American national standards and uses top tied wire fixation. Its main function is to serve as both a mechanical support for wires and an insulator to isolate current in high voltage environments.

Minimum Leakage Distance 29 In
Dry-arcing distance 12.25 In
Reference height/length 15 In
Cantilever strength 2800 Lbs

Product Details

Video

Product drawing

ANSI 57-4L.jpg

Product parameters

*Line post type porcelain insulators*
ANSI Class		57-1	57-2	57-3	57-4	57-5
Dimensions
Creepage distance	mm	356	559	737	1015	1145
Dry arcing distance	mm	165	241	311	368	438
*Mechanical Values*
Cantilever strength	kn	12.5	12.5	12.5	12.5	12.5
Cantilever strength routine test	kn	5	5	5	5	5
Electrical Values
Type application voltage	kv	25	35	45	55	66
Low frequency dry flashover voltage	kv	80	110	125	150	175
Low frequency wet flashover voltage	kv	60	85	100	125	150
Critical impulse flashover voltage,positive	kv	130	180	210	255	290
Critical impulse flashover voltage,negative	kv	155	205	260	340	380
Radio influence Voltage Data
Test voltage RMS to ground	kv	15	22	30	44	44
Maximum RIV at 1000kHz	μv	100	100	200	200	200
Packing and Shipping Data
Net weight,approximate	kg	5.2	9.0	11.0	16.0	18.0

Detailed Photos

The ANSI 57-3 High Voltage Tie Top Porcelain Line Post Insulator is a classic, standardized insulator used in high-voltage transmission and distribution lines.


ANSI 57-4 POST INSULATOR	LONG STEEL PIN	ANSI 57-4 POST INSULATOR WIHT SPINDLE

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