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Dowei Electric Porcelain Insulator ZSW

Dowei Electric Porcelain Insulator ZSW

Product catalog summary

General Description:
The document provides specifications for porcelain station post insulators, also known as pedestal insulators, manufactured by Ningbo Dowei Electric Co., Ltd. These insulators comply with international standards such as IEC 60168, IEC 60273, and ANSI C29.9, and are certified by ISO 9001, KEMA, CESI, CE, TUV, UL, and ASTA. They are designed to withstand seismic activities and high altitudes up to 5000 meters. The insulators are made from high-strength porcelain materials and are available in brown or gray glaze colors. An optional RTV silicone coating is offered for enhanced weather and UV resistance.

Specifications:

IEC Standard Type: The insulators are categorized by class, nominal voltage, cantilever strength, torsion strength, creepage distance, impulse withstand voltage, and power frequency withstand voltage (both dry and wet). The document lists various models with specific parameters, such as the C4-75 with a nominal voltage of 10 kV and a weight of 6 kg, and the C16-1050 with a nominal voltage of 230 kV and a weight of 227 kg.
ANSI Standard Type: The insulators are classified by ANSI class, basic impulse insulation level, usual line voltage, leakage distance, cantilever strength, tensile strength, torsional strength, compression strength, critical impulse flashover voltage, and withstand voltage. The document provides detailed specifications for each class, such as the ANSI Class 222 with a basic impulse insulation level of 95 kV and a net weight of 22 lb (9.8 kg), and the ANSI Class 362 with a basic impulse insulation level of 1050 kV and a net weight of 362 lb.

Key Features:
The insulators are designed for high performance in power transmission and distribution applications. They offer robust mechanical and electrical properties, ensuring reliability and safety in various environmental conditions. The document highlights the importance of selecting the appropriate insulator type based on specific application requirements.

Catalog excerpts

Dowei Electric Porcelain Insulator ZSW-1

Power Transmission & Distribution One stop equipments solution Porcelain Insulator

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Dowei Electric Porcelain Insulator ZSW-2

General Description: • IEC 60168, IEC 60273, ANSI C29.9 • ISO 9001, KEMA, CESI, CE, TUV, UL, ASTA • Seismic design, ETGI-1.020, IEEE Std 693, NCh2369 • Structural design, ASTM A325, ANSI/AISC 360, AWS D1.1 • High altitude correction per IEC & IEEE, ~ 5000m • Wet & Isostatic method, Brown or Gray glaze color • High-strength insulating materials Porcelains Alkalinalumino-silicates • Optional: RTV silicone coating for higher resistance to weathering & UV Porcelain Station Post Insulator (Pedestal Insulator) Nominal Cantilever Torsion Creepage Impulse Voltage Strength Strength Distance Withstand...

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Dowei Electric Porcelain Insulator ZSW-3

Porcelain Station Post Insulator (Pedestal Insulator) - ANSI Standard Type Item ANSI Class Basic Impulse Insulation Level (kV) Usual Line Voltage (kV) Test Voltage to Ground/kV Critical Impulse Flashover Voltage, Positive (kV) Withstand Voltage Radio-Influence Voltage Data Height-“H”/in(mm) Shed diameter/in(mm) Bolt circle diameter/in(mm) (4)Tapped holes, size/in Cap diameter-“C”/in (mm) Net Weight/Ib (kg) NINGBO DOWEI ELECTRIC CO., LTD. 608, Lingyun Building No.1, High-tech Zone, Ningbo, Zhejiang, China. 315048 Tel: +86-15088801930 | [email protected] | www.dowei-electr

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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