57-31 57-32 57-33 57-34 57-35 Line Post Insulator

分类 High Voltage Insulator

57 Series porcelain line post insulators designed for medium-voltage overhead lines and substations. ANSI-compliant, durable glazed porcelain construction with long service life.

Thông tin bổ sung

Product Details:

The ANSI 57 Series Porcelain Line Post Insulators are designed for overhead distribution lines, substations, switchgear, and utility transmission systems.

Manufactured from premium electrical-grade porcelain, these insulators provide reliable conductor support, superior electrical insulation, and high mechanical strength under various environmental conditions.

The series includes 57-31, 57-32, 57-33, 57-34, and 57-35 models, widely used in medium-voltage distribution networks worldwide.

Key Features

Manufactured according to ANSI standards
High-strength glazed electrical porcelain
Excellent dielectric performance
High cantilever and tensile strength
Superior resistance to pollution and weathering
UV-resistant glaze finish
Suitable for horizontal and vertical mounting
Long service life with low maintenance
Ideal for utility and industrial applications

Technical Specifications

ANSI Class	57-31	57-32	57-33	57-34	57-35
Nominal Voltage Class	11kV	22kV	33kV	35kV	46kV
Creepage Distance	356 mm	559 mm	737 mm	1015 mm	1145 mm
Dry Flashover Voltage	95 kV	125 kV	170 kV	200 kV	230 kV
Wet Flashover Voltage	60 kV	95 kV	125 kV	150 kV	180 kV
Critical Impulse Flashover Voltage	140 kV	205 kV	265 kV	300 kV	340 kV
Cantilever Strength	12.5 kN	12.5 kN	12.5 kN	12.5 kN	12.5 kN
Material	Porcelain	Porcelain	Porcelain	Porcelain	Porcelain