1. What is an insulator? What are its main functions and uses?

An insulator (High Voltage Insulator) is a special electrical component whose core function is to support a live conductor and prevent the current from flowing to the ground or other components, thereby achieving both electrical insulation and mechanical fixation.

Main Performance

• Electrical Performance: High insulation resistance and high voltage withstand (power frequency and lightning impulse).

• Mechanical Performance: High mechanical strength, capable of withstanding the weight of the conductor, wind loads, short-circuit electromotive force, etc.

• Environmental Performance: Excellent weather resistance, corrosion resistance, flame retardancy (UL certification), and environmental friendliness (RoHS certification).

• Main Applications: Widely used in high and low voltage transmission and distribution systems, substations, rail transit, industrial equipment, communication base stations, and various electronic and electrical equipment, they are key components for ensuring the safe operation of power systems.

2. What is a busbar insulator?

A Busbar Insulator is a device specifically designed to support, secure, and insulate busbars. Busbars are conductors used to collect and distribute high currents in switchgear, distribution boxes, or other equipment.

• Features: They are typically compact and feature specific slots or mounting holes. They securely hold busbars of various shapes (such as copper and aluminum bars) and ensure adequate clearance and creepage distances between busbars and to ground.

3.How to choose the right busbar insulator for project?

Selecting the right busbar insulator requires considering the following key factors:

• Voltage Class: Determine whether the system is a low-voltage (LV) or medium-high voltage (MV) insulator application. DOWE offers a full range of products across all voltage classes, including Low Voltage Busbar Insulator solutions.

• Busbar Size and Shape: Measure the width, thickness, and shape of the busbar to ensure it fits the insulator slots.

• Mounting Method: Determine whether it will be rail-mounted, panel-bolted, or snap-on.

• Environmental Conditions: Consider the ambient temperature, humidity, chemical corrosion, and dust levels to select an insulator made of the appropriate material (e.g., nylon PA66, PC, epoxy resin, etc.). DOWE's products offer excellent environmental resistance.

• Certification Requirements: If your product is intended for export or use in applications with strict safety requirements, choose products with international certifications such as UL test reports and CE certification, such as those from DOWE.

4. What is the difference between a post insulator and an insulator support?

These two terms are often used interchangeably, but they have slightly different emphases:

• Post insulator: Typically refers to a standalone insulator with a support structure. It integrates the insulator body and metal attachments (flanges or screws) at both ends, allowing it to function directly as a support post. It is commonly used in medium- and high-voltage switchgear and disconnectors, providing primary mechanical support and insulation (Standoff Insulator).

• Insulator support: This term has a broader meaning, referring to any base or structural member used to support and secure other insulators or conductive components. Sometimes, multiple post insulators may be mounted on a single insulator support structure. This term emphasizes the mechanical function of the post insulator.

5. Why choose DOWE insulators?

• Quality Certification: We hold CE (European Conformity), RoHS (Restriction of Hazardous Substances), and UL test reports, ensuring our products meet international safety and environmental standards.

• Professional Experience: As a professional insulator manufacturer, DOWE deeply understands the technical requirements of various application scenarios.

• Broad Product Range: We offer a variety of insulator support solutions, including Busbar Insulator, low-voltage insulators, and post insulators.

• Reliable and Durable: Using high-quality materials and sophisticated production processes, our products offer stable performance and a long lifespan.