70kN High Voltage Insulator ANSI 52-3 Porcelain Disc Insulators With 254mm Diameter

Price Negotiable

Price: $8

MOQ: 1 pcs

Delivery Time: 20 days

Brand: MacweyTEK

Product Description

ANSI 52-3 Porcelain Disc Insulator with 70kN Strength and 254mm Diameter for Power Transmission

The ANSI 52-3 is a high-strength suspension porcelain disc insulator designed for overhead power transmission and distribution lines, typically operating at 11kV to 33kV. This model delivers excellent mechanical and electrical performance in harsh outdoor environments.

Key Features

Minimum mechanical failing load of 70kN
Diameter: 254 mm | Height: 146 mm
Creepage distance: 320 mm
Net weight: approximately 5.0 kg
Widely used in utility and industrial power systems
Provides reliable insulation and mechanical support for suspension applications

Technical Specifications

Item	Specification
Leakage distance	320mm
Coupling size	16B
Power frequency puncture voltage	110kV
Power frequency withstand voltage (Dry)	70kV
Power frequency withstand voltage (Wet)	40kV
Lightning impulse withstand voltage	100kV
Radio-influence voltage test voltage to ground	10kV
Maximum RIV at 1000KHz	50μV
Rated E&M failing load	70kN
Tension proof load	35kN
Impact strength	6N.m
Quantity per carton	6 pcs
Gross/Net weight	35/30 kg
Carton dimensions	47×44.5×28cm

ANSI Class Comparison

ANSI Class	52-3	52-5	52-8	52-11
Coupling size	Type B	Type J	Type K	Type K
Diameter (D) mm	254	254	254	280
Spacing (H) mm	146	146	146	155
Creepage distance mm	320	320	320	380
Combined M&E strength kN	67	111	178	222
Impact strength N.m	6.2	10	11.3	11.3
Routine proof test load kN	33.3	55.5	89	111
Maximum working load kN	33.3	55.5	89	111
Low frequency dry flashover voltage kV	80	80	80	80
Low frequency wet flashover voltage kV	50	50	50	50
Critical impulse flashover voltage, positive kV	125	125	125	125
Critical impulse flashover voltage, negative kV	130	130	130	130
Low frequency puncture voltage kV	110	110	110	110
Test voltage RMS to ground kV	10	10	10	10
Maximum RIV at 1000kHz μv	50	50	50	50
Net weight, approximate kg	5.0	5.3	7.8	9.7