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Lightning Arrester for CCTV 21m Tower: BR Standard Protection Solution

Introduction

Lightning strikes pose a significant threat to CCTV towers, especially those standing at 21 meters or taller. The BR Standard Lightning Arrester provides a robust solution to protect your surveillance infrastructure from electrical surges and direct lightning strikes. This article explores the technical specifications, installation procedures, and maintenance best practices for this critical safety component.

Why Lightning Protection is Essential for CCTV Towers

Tall structures like 21m CCTV towers are particularly vulnerable to lightning strikes due to their height and metallic composition. Without proper protection:

• Equipment can suffer catastrophic failure
• Data loss may occur
• Fire hazards increase significantly
• Downtime leads to security vulnerabilities

BR Standard Lightning Arrester Specifications

The BR Standard arrester for 21m CCTV towers features:

Installation Guidelines

Pre-Installation Preparation

Before installing the lightning arrester:

1. Conduct a site survey to determine optimal placement
2. Verify all components are present and undamaged
3. Ensure proper grounding infrastructure exists
4. Schedule installation during dry weather conditions

Mounting Procedure

Follow these steps for proper installation:

1. Position the arrester at the highest point of the tower
2. Secure the base plate using stainless steel bolts
3. Connect the down conductor to the grounding system
4. Maintain a minimum 45° angle of protection coverage
5. Ensure all connections are tight and corrosion-resistant

Grounding Requirements

Effective grounding is critical for proper arrester performance:

• Ground resistance should be <10 ohms
• Use copper conductors with minimum 50mm² cross-section
• Ground rods should penetrate at least 3m into the earth
• Multiple ground rods should be spaced at least 2m apart

Maintenance and Inspection

Regular Inspection Schedule

To ensure continued protection:

• Visual inspection every