Technological Innovation

What is BS EN 61386?

BS EN 61386, also known as BS EN 61386, is a technical standard that outlines the requirements for conduits for electrical installations. Conduits are protective tubes or ducts used to route and protect electrical wires and cables in buildings, infrastructure, and other installations.

The Purpose of BS EN 61386

The main purpose of BS EN 61386 is to ensure the safety, reliability, and durability of conduit systems in electrical installations. It sets out guidelines for the design, material specifications, installation methods, and performance characteristics of conduits. Compliance with this standard helps eliminate potential hazards and ensures the proper functioning of electrical systems.

Key Requirements of BS EN 61386

One of the key requirements of BS EN 61386 is that conduits should be made of suitable materials that can withstand the environmental conditions and mechanical stress they will be exposed to. The standard specifies different types of conduits, such as rigid metal, flexible metal, and non-metallic conduits, each with their own specific properties and usage guidelines.

Another important requirement is that the conduit system should provide adequate protection against the ingress of moisture, dust, and other foreign particles. It should also have sufficient mechanical strength to prevent damage due to external factors like impact, vibration, or pressure.

Installation and Testing

Proper installation is crucial to maintaining the integrity of the conduit system. BS EN 61386 provides guidelines on various installation methods, including bending, joining, and fixing of conduits. It outlines the recommended minimum bending radius, spacing between supports, and correct orientation when installing bends and fittings.

In addition, BS EN 61386 requires that conduits be subjected to rigorous testing to ensure they meet the required specifications and performance standards. Testing may include checks for electrical continuity, resistance to impact, compression strength, and resistance to fire or extreme temperatures.


BS EN 61386 plays a vital role in ensuring the safety and reliability of electrical installations by providing guidelines for conduit systems. Compliance with this standard helps prevent potential hazards caused by faulty conduits and ensures that electrical systems function properly. It is important for professionals involved in electrical installations to be familiar with and adhere to the requirements set out in BS EN 61386.


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