What is EN 51391?

Introduction

EN 51391 is a technical standard that specifies requirements for the assessment of cable systems in industrial environments. It provides guidelines for the design, installation, and maintenance of cable networks, ensuring their performance, reliability, and safety.

Scope and Objectives

The primary objective of EN 51391 is to ensure the proper functioning of cable systems by setting out comprehensive requirements and testing procedures. These requirements cover various aspects, including electrical, mechanical, and thermal properties of cables. The standard also addresses environmental factors like temperature, humidity, and chemical exposure that may affect the performance of cables.

Key Requirements

EN 51391 outlines several key requirements that cable systems need to meet. These include electrical characteristics such as voltage rating, insulation resistance, and conductor resistance. Mechanical requirements such as bending radius, tensile strength, and impact resistance are also specified in the standard. Additionally, the standard mandates tests for fire performance, smoke emission, and toxic gas release to ensure the safety of cable systems during a fire incident.

Implementation and Compliance

To comply with EN 51391, cable manufacturers, installers, and maintenance providers must adhere to the prescribed requirements and test procedures. They are required to conduct various tests, such as type tests, routine tests, and sample tests, to confirm the compliance of cables with the standard. Regular inspections and maintenance checks are necessary to ensure ongoing compliance and optimal performance of cable systems.

In conclusion, EN 51391 is an essential technical standard that governs the assessment and maintenance of cable systems in industrial environments. Adhering to this standard ensures the reliability and safety of cable networks, minimizing the risk of electrical failures or accidents. By specifying comprehensive requirements and testing procedures, EN 51391 facilitates the design, installation, and maintenance of efficient cable systems.