Standard Porcelain Suspension Insulator

Model 52-3 is a general disc suspension unit for overhead transmission and distribution lines, covering electrical insulation and mechanical connection at suspension or tension positions.
Its 255 mm disc diameter and 146 mm structural height provide fixed dimensions for fitting checks in conventional insulator-string arrangements.
The Standard Porcelain Suspension Insulator can be assembled in a string according to the insulation requirements of the line.

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Product Specifications

Parameter	Specification
Model	52-3
Disc Diameter	255 mm
Structural Height	146 mm
Creepage Distance	292 mm
Rated Electromechanical Failing Load	70 kN

Electrical and Mechanical Reference

Rated electromechanical failing load is 70 kN, supporting selection for line positions within the corresponding mechanical load class.

Creepage distance is 292 mm. The source also states approximately 50 kV wet power-frequency withstand and approximately 100 kV lightning impulse withstand for model 52-3.

Connection mark 16 is confirmed and should be checked together with the intended line fittings before ordering.

Batch Matching and Factory Basis

OEM/ODM production is supported from technical drawings or samples, with confirmation of structural dimensions, connection form, and technical requirements for batch projects.

A sample can be checked before mass production when required for project matching.

Jiangxi Xinhuang Electric Co., Ltd. is stated to have 26 years of operation, approximately 120,000 square meters of production space, and 125 employees.

Pre-Packing Verification

Quality control begins with raw materials and continues through production, finished-product inspection, and after-sales traceability.

The production base has mechanical, electrical, and dimensional inspection equipment for insulator-related performance and size checks.

Every finished product is subject to 100% inspection before packaging.

Reorders and Shipment Planning

Export packaging follows the receiving requirements of the buyer's destination country.

Standard production is generally 30 days and customized production generally 45 days; order progress can be reported through photos or video.

EXW, FOB, and DDP terms are available. Mixed models or colors may be combined within one MOQ after prior confirmation, while the delivery schedule is recalculated according to the actual order.

Repeat orders may have a shorter delivery cycle, subject to the actual production arrangement.

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