Manhole covers compliant with EN124 Class A15 are designed to meet specific safety and functionality standards in European infrastructure. The EN124 standard, established by CEN, is widely recognized for its comprehensiveness in regulating covers for vehicular and pedestrian areas.

1. Load-Bearing Capacity

The load-bearing capacity is determined through rigorous testing procedures. During the test, a concentrated load is applied to the surface of the cover in a controlled environment. Class A15 manhole covers are engineered to withstand a test load of 15 kN. This relatively low-load rating makes them suitable for areas where only pedestrians and pedal cyclists are expected. In a quiet residential area, where the heaviest traffic consists of pedestrians and occasional cyclists, these covers offer a practical and cost-effective solution.

2. Material and Construction

These manhole covers can be made from a variety of materials. Cast iron is a common choice due to its durability, strength, and resistance to corrosion over time. Composite Class A15 manhole covers are often lighter in weight compared to their cast-iron counterparts, which can be an advantage during installation and maintenance.

The construction of the cover typically includes a flat or slightly domed top surface to facilitate water runoff. The edges are designed to fit snugly into the manhole frame, ensuring stability and preventing accidental displacement. In certain areas, anti-slip features are added to surfaces, particularly where wet conditions are frequent, to improve pedestrian safety.

3. Installation and Maintenance

Installation of EN124 Class A15 manhole covers is relatively straightforward. The cover is placed into a pre-installed frame that is securely anchored to the surrounding substrate, such as concrete or asphalt. The frame is designed to support the cover and distribute the applied loads evenly.

Periodic inspections are conducted to check for signs of damage, such as cracks or excessive wear. For cast-iron covers, rust prevention measures may be necessary over time, while composite covers are generally more resistant to corrosion.

4. Application Areas

As mentioned, the primary application areas for Class A15 manhole covers are pedestrian-only zones. This includes park walkways, where visitors stroll and enjoy the scenery, and the inner-area sidewalks of shopping malls that are not accessible to vehicles. Additionally, they are suitable for use in areas designated for bicycle paths, ensuring the safety of cyclists as they pass over the manhole covers.