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Low-voltage line insulator

Manufacturer-supplied / Professionally manufactured / Consistently high quality

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Porcelain insulator

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  • Product Description
  • Overview

    Low-voltage overhead power line insulators are used exclusively in AC or DC power lines with operating voltages of 1,000 volts or less to provide insulation and secure the conductors. They include: low-voltage pin-type insulators (referred to as pin insulators); low-voltage butterfly-type insulators (referred to as butterfly insulators); and low-voltage rod-type insulators (referred to as rod insulators).

    Structure and Model Description

    1. Low-voltage line pin-type insulators are assembled from porcelain components and iron feet. The top of the porcelain body features a wire groove, which bears the conductor load, while the lower portion is equipped with shed skirts that provide a long creepage distance and offer a certain level of electrical insulation performance. The newly redesigned standard product is smaller in size, lighter in weight, and exhibits improved self‑cleaning properties, while its electromechanical performance remains at the same level as that of the previous model.
    PD—low-voltage line pin-type insulator; the numbers 1, 2, and 3 following the dash indicate the product’s shape and size sequence, with No. 1 being the largest size; T, M, and W denote iron crossarm, wooden crossarm, and bent‑foot types, respectively.
    2. Butterfly-type insulators feature two large shed skirts shaped like a butterfly; the conductor is tied between the two sheds, with a central hole through which a pin is inserted to secure the insulator to the crossarm. Our factory also supplies butterfly-type insulators in a three-shed configuration for export.
    ED—low-voltage line butterfly-type insulators: the numbers 1, 2, 3, and 4 following the hyphen indicate the product’s shape and size sequence; for export products, the letters B and C appended to these numbers denote differences in shape and specifications.
    3. Spool-type insulators have two or more ribs; the conductor is tied between the upper and lower sheds, with a central hole for securing the connection to the crossarm or cleat using a pin.
    EX—low‑voltage line post insulators; the numbers 1, 2, 3, and 4 following the hyphen indicate the product’s shape and size sequence. All insulators comply with the national standard GB 1386‑78, “Insulators for Low‑Voltage Overhead Power Lines.” When placing an order, please specify the product name, model and code, glaze color, and quantity.

    Production Capacity

Our advantages

Experienced

More than 15 years of production experience, worry-free after-sales service.

Full category production strength

Covering a full range of equipment for 10-500 kV power transmission and distribution, thousands of products in 10 categories are adapted to diverse scenarios, realizing one-stop supply of insulators, cables, hardware, etc.

Fast delivery

Sufficient inventory, fast and safe delivery.

Factory real view

Factory Environment

Factory Environment

Office Building

Office Building

Payment and distribution

T/T L/C

★ If your order is not very big, we can send it to you by TNT, DHL, UPS or EMS etc.

★ If your order is large, we will suggest you use air or sea freight through your designated freight forwarder. We also have long-term cooperative agents.

7-10 working days

7-10 working days

7-10 working days

7-10 working days

Payment and Distribution

7-10 working days

7-10 working days

7-10 working days

7-10 working days

7-10 working days

Payment and distribution

Common Problems

What is the product's after-sales warranty period, and how are quality issues handled?

The product's free warranty period is 12 months. During the warranty period, if quality problems arise due to product design, manufacturing, or material defects, we are responsible for free repair or replacement. You can call our after-sales service at 0317 - 3667793, and we will respond within 12 hours of receiving feedback and arrange for professionals to resolve the issue. Beyond the warranty period, we also provide paid lifetime maintenance services, charging only for the cost of spare parts.

What logistics method is generally used for product delivery, and how long does it take to arrive?

We cooperate with many well-known logistics companies to comprehensively select suitable logistics according to your delivery address and cargo weight and volume. Domestically, it generally takes 3 - 7 working days to arrive, and remote areas may be slightly delayed; international orders are determined according to the specific destination and transportation method, usually in 15 - 30 days or so, we will follow up the logistics information and give feedback to you in time.

I would like to customize electrical equipment with special specifications. Can your company undertake this?

Yes, we have strong technical strength and a professional R&D team. You only need to inform us of your special specifications, and we will evaluate the feasibility and customize a production plan for you to ensure that your needs are met.

What is the process for ordering products from your company?

First, you select your favorite products on the website and submit an online inquiry or call our customer service at 0317 - 3667793 for consultation. After receiving the information, we will communicate with you about product details, prices, and delivery times. After both parties confirm that there are no errors, we will sign a contract. You will pay the amount as agreed in the contract, and we will arrange production and delivery.

How to view the parameters and model of a specific electrical equipment?

You can visit the product details page of the website. Each product has a detailed parameter introduction, including technical specifications, applicable scenarios and other information. If you still have questions, you can always contact our customer service staff. The contact information is at the bottom of the website homepage.

What electrical equipment products does your company mainly produce?

Our company specializes in producing products for 10 - 500 kV transmission, substation, and distribution projects, covering ceramic insulators, composite insulators, tempered glass insulators, matching hardware, zinc oxide arresters, drop-out fuses, disconnect switches, overhead insulated wires, steel-cored aluminum stranded wires, power cables, iron fittings, and other 10 major categories with thousands of products.

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