What is the critical fall height for BS EN 1177

The safety of children while playing on outdoor playgrounds is of utmost importance. To ensure their well-being, different standards and regulations are in place, including the

BS EN 1177 standard which focuses on impact attenuating playground surfacing. This article aims to provide an in-depth analysis of the critical fall height outlined in BS EN 1177, highlighting its significance and implications.

Understanding BS EN 1177

BS EN 1177 is a British standard that specifies requirements for impact attenuating playground surfacing materials, such as rubber tiles or loose fill materials like wood chips or sand. The purpose of this standard is to minimize the risk of head injuries when children fall from play equipment onto the ground beneath.

One of the key aspects of BS EN 1177 is the determination of the critical fall height. This refers to the maximum fall height from which a child can reasonably be expected to play without sustaining a severe head injury. It is based on extensive research and testing to ensure adequate safety measures are in place.

The Calculation Process

Determining the critical fall height involves several factors, including the type of playground surfacing material and its critical fall height rating. Each material has a specific rating that signifies its ability to absorb impact and mitigate the risk of serious head injury.

For instance, a rubberized surface may have a critical fall height of 2.1 meters, while wood chips might have a lower rating of only 1 meter. These ratings are determined through laboratory tests where a weighted headform is dropped on the surface repeatedly at varying heights to measure its impact attenuation capabilities.

In addition to the surfacing material, other factors must also be considered, such as the type of play equipment, the fall zones, and the potential fall heights from different platforms or climbing structures. These variables help determine the overall critical fall height for a particular playground configuration.

Ensuring Compliance and Safety

Playground operators and equipment manufacturers must adhere to the guidelines set forth by BS EN 1177 to ensure compliance and safety. It is crucial to carefully evaluate the materials used for playground surfacing, their critical fall height ratings, and their suitability for specific play equipment.

Regular inspections and maintenance are necessary to ensure that the impact attenuation properties of the surfacing material remain effective over time. Any signs of wear, degradation, or inadequate performance should prompt immediate remedial measures to uphold the safety standards outlined in BS EN 1177.

By following the requirements of BS EN 1177, playground operators can create a safe environment where children can enjoy their playtime without unnecessary risks or concerns about severe head injuries.