What voltage and current range does the Composite Post Insulator cover?

Catalogue voltage range: AC 40.5kV～1100kV / DC ±100kV～±800kV. Confirm the rating of the specific model and drawing.

Which standards are referenced?

Catalogue standard reference: IEC 62231 / IEC 60168 / GB/T 25092. Request type-test evidence for the specific model.

Which applications is it used in?

Circuit Breakers, CT/VT & Surge Arresters; HVDC Converter Stations & Valve Halls.

Home Products Composite & Porcelain Hollow InsulatorsComposite Post Insulator

FZSWAC 40.5kV～1100kV / DC ±100kV～±800kV

Review model drawings and test evidence

Composite & Porcelain Hollow Insulators

Composite Post Insulator

Engineered for extreme mechanical bending loads in substations up to ±800kV DC and 1100kV AC.

Rated VoltageAC 40.5kV～1100kV / DC ±100kV～±800kV

Rated CurrentN/A

Insulation TypeComposite Silicone / FRP Rod

Catalog standardIEC 62231 / IEC 60168 / GB/T 25092

PD requirementConfirm by model

Test evidenceRequest with RFQ

Buyer requirement checklist

Define apparatus duty, mechanical loading and flange interfaces.

Composite, porcelain hollow or station-post application
Tube ID/OD, length, flange and pressure details
Bending/torsion load and installation orientation
Creepage, pollution, altitude and seismic conditions

Scope by product: IEC 61462 composite hollow, IEC 62155 ceramic/glass hollow, IEC 62772 hollow-core station post; IEC 62231 addresses solid-core composite station posts.

Hollow and post insulator catalog (PDF)

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Product Technical Overview

Substation post composite insulators for high-voltage and ultra-high-voltage AC and DC grids. High-strength FRP core rod encased in seamless HTV silicone rubber housing with hot-dip galvanized or forged steel end fittings. Provides ultra-high cantilever load capacity and outstanding anti-pollution performance.

Compatible Substation Apparatus

Substation BusbarsDisconnecting SwitchesFilter Capacitor Banks in HVDCCurrent Transformer Supports

Showing 7 of 7 models

Catalog values are representative. Confirm the selected model, drawings and test evidence during inquiry.Scope by product: IEC 61462 composite hollow, IEC 62155 ceramic/glass hollow, IEC 62772 hollow-core station post; IEC 62231 addresses solid-core composite station posts.

Model	Rated voltage	Structural height	Creepage distance	Arcing distance	1 min power-frequency withstand	Lightning impulse withstand	Cantilever / bending load
FZSW-40.5/20	40.5 kV	680 mm	1900 mm	510 mm	130 kV	250 kV	20 kN
FZSW-126/8	126 kV	1250 mm	4300 mm	1080 mm	230 kV	550 kV	8 kN
FZSW-252/22	252 kV	2400 mm	9000 mm	2200 mm	460 kV	1050 kV	22 kN
FZSW-550/16	550 kV	4600 mm	18900 mm	4200 mm	740 kV	2250 kV	16 kN
FZSW-±400/25	±400 kV DC	5600 mm	14000 mm	5100 mm	±620 kV	1350 kV	25 kN
FZSW-±800/16	±800 kV DC	12270 mm	42750 mm	11200 mm	1620 kV	2750 kV	16 kN
FZSW-±1100/16	±1100 kV DC	15773 mm	55000 mm	14600 mm	—	2550 kV	16 kN

Custom Engineering & Flange Dimensions Note:

Dimensions, interfaces and replacement compatibility require approved drawings and technical review.

Engineering Inquiry Draft

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Composite Post Insulator: FAQ

What voltage and current range does the Composite Post Insulator cover?: Catalogue voltage range: AC 40.5kV～1100kV / DC ±100kV～±800kV. Confirm the rating of the specific model and drawing.
What insulation or construction is used?: Composite Silicone / FRP Rod.
Which standards are referenced?: Catalogue standard reference: IEC 62231 / IEC 60168 / GB/T 25092. Request type-test evidence for the specific model.
Which applications is it used in?: Circuit Breakers, CT/VT & Surge Arresters; HVDC Converter Stations & Valve Halls.