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55kV Vertical Horizontal Porcelain Line Post Insulator 470mm Length 1030mm Creepage Distance ANSI C29.7 Standard

Name: 55kV Vertical Horizontal Porcelain Line Post Insulator 470mm Length 1030mm Creepage Distance ANSI C29.7 Standard
Brand: Dalian Hivolt Power System Co.,Ltd.

Premium 55kV porcelain line post insulator with 12.5KN cantilever strength and 1030mm creepage distance. Features hot-dip galvanized metal fittings, high-aluminum porcelain core, and universal clamp design for AAAC/ACSR conductors. ANSI C29.7 compliant with 3-5 year warranty and 50+ year service life. Suitable for horizontal or vertical installation on transmission lines.

standard ANSI C29.7

Place of Origin CHINA

color Brown

Packaging Details wooden pallet

with assembly bolt yes , long bolt or short bolt

Model Number N/A

type n female connector type t thermocouple extension wire two post portable car lift

Product Description

55kV Vertical & Horizontal Porcelain Line Post Insulator

Technical Specifications

Parameter	Unit	Value
Total Length	mm	470
Shed Diameter	mm	180
Creepage Distance	mm	1030
Cantilever Strength	KN	12.5
Low Power Frequency Flashover Voltage (Dry)	KV	140
Low Power Frequency Flashover Voltage (Wet)	KV	110
Critical Lightning Impulse Flashover Voltage	KV	230
RIV Test Voltage to Ground	KV	44
Max RIV at 1 MHz	μV	200

Premium Material Construction

Metal Fittings: High-density ductile/malleable iron top clamp frame and bottom base with magnetic powder inspection; high-density cast aluminum alloy top clamps suitable for AAAC/ACSR conductors
Surface Protection: All metal fittings hot-dip galvanized with minimum 85μm zinc thickness
Insulation Core: High-aluminum porcelain C130 with hard, shining glaze surface
Assembly: Metal fittings and porcelain bonded with Portland cement for superior mechanical performance

Application Versatility

Transmission lines up to 55kV capacity
Flexible installation in horizontal or vertical positions
Compatible with wooden poles, round poles, and cross arms
Universal top clamp design accommodates AAAC, AAC, and ACSR conductors

Quality & Performance Advantages

Extended Service Life: Over 50 years of reliable operation with proper maintenance
Warranty Protection: 3 to 5 years quality guarantee
Maintenance Efficiency: Smooth, shining surface provides excellent self-cleaning performance
Custom Solutions: OEM designs available to meet specific requirements

Standards Compliance

Manufactured to ANSI C29.7 standard, available in types ANSI 57-14, ANSI 57-24, and ANSI 57-34