U210B Ceramic Disc Insulator with 210KN Strength for 330kV Transmission Lines - 300mm Diameter, 380mm Creepage

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Brand: HIVOLT

Product Description

Product Overview

IEC standard ceramic disc insulator U210B with zinc sleeve, designed for 330kV transmission lines with anti-fog properties and superior performance in demanding electrical environments.

Technical Specifications

Technical Specification	Unit	Value
Spacing	mm	170
Shed Diameter	mm	300
Creepage Distance	mm	380
Coupling Size	-	24
Rated M&E Strength	KN	210
Impact Strength	N.m	10
Power Frequency Withstand Voltage - Dry	KV	70
Power Frequency Withstand Voltage - Wet	KV	45
Lightning Impulse Withstand Voltage - Positive	KV	105
Lightning Impulse Withstand Voltage - Negative	KV	105
Puncture Voltage	KV	130
RIV test Voltage to the Ground	KV	10
Max RIV at 1 MHz	μV	50

Premium Material Construction

Metal Components

High-density ductile iron insulator caps with magnetic powder inspection
Forged steel insulator pins with zinc sleeve protection
Over 85% bonded area between zinc sleeve and pin for extended service life
Hot-dip galvanized metal fittings meeting IEC 60383 standard coating thickness

Ceramic Components

High aluminum porcelain C130 construction
Shining glaze surface in grey, brown, or white colors (customizable)

Assembly Components

Stainless steel cotter keys for secure insulator string connection
Portland cement 525# for superior mechanical performance and thermal stability

Applications

Ideal for both tension and suspension strings in transmission lines including 220KV, 330KV, 400KV, 500KV, 750KV systems, as well as substation applications.

Competitive Advantages