18kV Surge Arresters with Polymer Housed | High Performance Polymer Lightning Arrester for Power Distribution

Surge Arrester Series

Product Description

The 18kV Surge Arresters with Polymer Housed are designed to protect electrical equipment and power distribution systems from lightning surges and overvoltage conditions. Using advanced zinc oxide varistor technology, this polymer housed surge arrester provides fast response, low residual voltage, and reliable protection for medium-voltage networks.

The 18kV polymer surge arrester features a lightweight, non-porcelain polymer housing that offers excellent insulation, superior mechanical strength, and strong resistance to pollution, moisture, and UV aging. It is widely applied in overhead lines, substations, and outdoor power distribution systems.

General

1. Ratings:0.22~500KV (porcelain),0.22~220KV(composite)

2. Application:for protection of power transmission & distribution system from over-voltage.

3. Features:

1）Silicone polymer housing composite metal oxide surge arrester and porcelain housing metal Oxide surge arresters are available.

2）Easy installation and maintenance.

3）Good sealing capability to ensure reliable operation.

4）Protection and reliability of the surge arrester have been greatly enhanced.

Product Advantages

1. Fast response to lightning and switching surges

2. Advanced zinc oxide varistor technology

3. Polymer housing with excellent insulation performance

4. Lightweight and impact-resistant design

5. Superior pollution and moisture resistance

6. Low residual voltage for equipment protection

7. Long service life with stable performance

8. Suitable for outdoor and harsh environments

Applications & How to Apply

1. 18kV power distribution systems

2. Overhead power lines and pole-mounted equipmen

3. Substations and distribution transformers

4. Areas with high lightning activity

5. Outdoor electrical infrastructure projects

How to Apply ：

• Select the appropriate 18kV surge arrester with polymer housed according to system voltage and grounding conditions.

• Mount the surge arrester securely on poles, crossarms, or equipment brackets.

• Connect the line terminal to the phase conductor and the ground terminal to the grounding system.

• Ensure proper clearance and insulation distance during installation.

• Inspect periodically to maintain reliable surge protection.

Working Condition

1. Ambient air temperature:-40℃ ~+40℃ ;

2. Altitude：<=2000m;

3. Frequency: 48Hz~62Hz;

4. Power frequency voltage applied between terminals of surge arrester must not exceed continuous operating voltage of surge arrerter;

5. Earthquake intensity is less than 8 degree;

6. Max. Wind speed is 35m/s.

Main Techical Parameter

Quality Assurance

1. High-quality zinc oxide varistor blocks

2. Durable polymer housing with strict quality control

3. Electrical performance and insulation testing

4. Pollution resistance and aging tests

5. Final inspection before shipment

FAQ

Q1: What is an 18kV polymer housed surge arrester used for?

A1: It is used to protect power systems from lightning and overvoltage surges.

Q2: Why choose polymer housed surge arresters instead of porcelain type?

A2: Polymer housings are lighter, more impact-resistant, and better in pollution environments.

Q3: Is this 18kV surge arrester suitable for outdoor use?

A3: Yes, it is designed specifically for outdoor power distribution systems.

Q4: Can the surge arrester handle frequent lightning surges?

A4: Yes, zinc oxide technology allows repeated surge absorption without degradation.

Q5: Does the 18kV polymer surge arrester require regular maintenance?

A5: Minimal maintenance is required under normal operating conditions.