Vertical Line Post Insulator 57-12 with Top Clamp | 330mm Length, 12.5KN Strength | ANSI C29.7 Standard

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Price: Negotiable

MOQ: Negotiable

Delivery Time: Negotiable

Brand: HIVOLT

Product Description

Product Overview

ANSI C29.7 standard porcelain line post insulator 57-12 with top clamp design for vertical installation in distribution systems up to 24KV.

Technical Specifications

Specification	Unit	Value
Total Length	mm	330
Max. Shed Diameter	mm	165
Creepage Distance	mm	560
Cantilever Strength	KN	12.5
Power Frequency Flashover Voltage (dry)	KV	100
Power Frequency Flashover Voltage (wet)	KV	70
Critical Impulse Flashover Voltage	KV	160
Radio Interference Voltage Test	KV	22
Max. RIV at 1 MHz	μV	100

Premium Material Construction

Metal Caps: High-density ductile or malleable iron with magnetic powder inspection; top clamps made of cast aluminum alloy suitable for conductor sizes 0.25" to 2.7"; hot-dip galvanized coating meets IEC/ASTM standards
Porcelain Insulation: High-aluminum porcelain C120/C130 with hard, glossy glaze in grey, brown, or white
Cement: Premium Portland cement ensuring reliable mechanical performance and durability

Applications

Designed for vertical installation in distribution lines up to 24KV. Features aluminum top clamps for secure conductor support and positioning.

Competitive Advantages

High-aluminum porcelain construction provides smaller core diameter with superior mechanical strength
Reduced unit weight for easier installation and maintenance
Smooth, glossy glaze surface offers excellent self-cleaning performance
Extended 3-5 year quality guarantee for reliability assurance
Custom design capabilities based on specific technical requirements