ANSI 52 Series Porcelain Suspension Disc Insulators

ANSI 52 Series Porcelain Suspension Insulators are designed for overhead power transmission and distribution lines. They are assembled into insulator strings to provide electrical insulation and mechanical support for suspended conductors.

Model: ANSI 52

Series Standard: ANSI/NEMA C29.2

Materials: Porcelain

Voltage: High Voltage

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ANSI 52 Series Porcelain Suspension Disc Insulators are designed to support and electrically insulate conductors on overhead power transmission lines. Made from high-quality electrical porcelain with metal end fittings, they can be assembled into insulator strings to meet different voltage and mechanical load requirements.

Key Features

High Mechanical Strength: Available in different rated electromechanical failing loads to suit various conductor tension requirements.
Reliable Electrical Insulation: Electrical porcelain provides dependable insulation performance for overhead transmission lines.
Weather-Resistant Glaze: Glazed porcelain surface helps resist moisture and environmental exposure.
Flexible String Assembly: Multiple disc units can be connected to achieve the required insulation level.
Multiple Connection Options: Ball-and-socket and clevis-and-tongue fittings are available for different installation requirements.
Replaceable Individual Units: Individual damaged discs can be replaced without replacing the entire insulator string, subject to the string design and maintenance procedure.

Technical Parameter	ANSI 52-1	ANSI 52-2	ANSI 52-3	ANSI 52-4	ANSI 52-5
Standard	ANSI C29.2	ANSI C29.2	ANSI C29.2	ANSI C29.2	ANSI C29.2
Unit Spacing (H)	140 mm	146 mm	146 mm	146 mm	146 mm
Nominal Diameter (D)	165 mm	190.5 mm	254 mm	254 mm	254 mm
Creepage Distance	178 mm	210 mm	292 mm	292 mm	292 mm
Dry Arcing Distance	114 mm	154 mm	197 mm	197 mm	197 mm
Rated E&M Failing Load	44 kN	67–70 kN	67–70 kN	67–70 kN	111 kN
Tension Proof Load	22 kN	33.5–35 kN	33.5–35 kN	33.5–35 kN	55.5 kN
Power Frequency Flashover Voltage — Dry	60 kV	65 kV	80 kV	80 kV	80 kV
Power Frequency Flashover Voltage — Wet	30 kV	35 kV	50 kV	50 kV	50 kV
Power Frequency Puncture Voltage	80 kV	90 kV	110 kV	110 kV	110 kV
Mechanical Impact Strength	5 N·m	5.5 N·m	6 N·m	6 N·m	7 N·m
Approx. Weight	2.5 kg	3.6 kg	4.6 kg	4.9 kg	5.6 kg

Applications

Overhead high-voltage power transmission lines.
Suspension insulator strings on transmission towers.
Strain insulator strings at dead-end and tension points.
Electrical substations and overhead line connections where suitable suspension strings are specified.
Utility power transmission projects requiring porcelain disc insulators.

52 series porcelain insulators application3