Vertical Line Post Insulator

One of the core products of SARAH Electric factory is the Vertical Line Post Insulator; this series of products includes 57-11 to 57-15 (vertical installation type) and 57-31 to 57-35 (horizontal installation type). Its unique umbrella skirt design effectively increases the creepage distance and maintains excellent anti fouling flashover ability in humid and polluted environments.

This product is also widely used in urban power grids, industrial and mining enterprises, railways, and rural power grid renovation projects, and is a key component to ensure the safe operation of overhead lines.

Core strengths

1. The bending strength of the Vertical Line Post Insulator is as high as 12.5kN, which can withstand the mechanical stress caused by extreme weather conditions such as strong winds and icing. Whether suspended vertically or supported horizontally, it can ensure that the wires are stable and not detached, greatly improving the operational reliability of the line.

2. The SARAH 57 series offers two types of structures, vertical and horizontal installation, to meet the installation needs of different towers and crossarms.

-Vertical type: suitable for vertical suspension of straight bars and tension bars.

-Horizontal type: suitable for horizontal support of corner poles and terminal poles.

Application scenarios

In urban 10kV/20kV distribution networks, 57 series insulators are commonly used for supporting and fixing overhead insulated wires. Their high mechanical strength and excellent anti fouling performance can effectively reduce line failures and improve power supply reliability.

In heavily polluted environments such as metallurgy, chemical engineering, and mining, the Vertical Line Post Insulator's long climbing distance and high voltage resistance make it the preferred choice for ensuring the safe operation of internal power grids in enterprises.

Why choose SARAH Electric?

1. In addition to standard models, we also provide non-standard customization services, which can be designed and produced according to customers' special requirements (such as special voltage levels, special installation dimensions).

2. SARAH products have been exported to more than 50 countries and regions in Europe, America, Africa, Southeast Asia, etc. With excellent quality and comprehensive after-sales service, they have won the trust of global customers.

Product Parameter Table

Porcelain Vertical Line Post Insulators

Porcelain Horizontal Line Post Insulator

Customer case studies and actual shipment photos

1. Power grid renovation project

In the 10kV distribution network renovation project in Wenzhou, we provided 5000 Vertical Line Post Insulators. After one year of operation, the line failure rate has decreased by 80%, and customers have given high praise to the performance and stability of the product.

2. Railway contact network project

In a certain electrified railway overhead contact system project, we provided 3000 57-13 type insulators. The product operates stably in cold and windy environments without any malfunctions, ensuring the safe operation of trains.

3. Actual shipment photos

We have a comprehensive logistics system to ensure that our products are delivered to customers in a timely and safe manner. The following are our actual shipment photos, showing the entire process of the product from packaging to transportation.