Should an accident resulting in a fire occur, essential equipment, such as emergency lighting, ventilation systems and rescue equipment would have to remain available.
The fire protection box WKE 54 from Spelsberg guarantees this with its high protection rating IP 67. The special development for tunnels made of robust thermosetting plastic is protected from penetration of foreign objects and moisture. WKE 54 is also a strong element for safety concepts in train tunnels. Pressure and suction resistance were confirmed after testing in accordance with “Tunnel safety lighting for railway tunnels”.
The first inner-city bored tunnel in the Netherlands extends at a depth of 30 metres below Rotterdam. Its 2.4 kilometre-long tubes are part of the “RandstadRail” light rail system.
The WKE 54 fire protection boxes with their especially high protection rating IP 67 assure a reliable flow of electricity at this considerable depth. In addition to maximum functional integrity, the boxes developed especially for tunnels in special thermosetting plastic achieves an insulation retention time of 180 minutes and a functional duration of 120 minutes at a temperature of 400 degrees Celsius.
WKE 54 is also a strong element for safety concepts in train tunnels. Pressure and suction resistance were confirmed after testing in accordance with “Tunnel safety lighting for railway tunnels”.
Line U55 passes below the government quarter in central Berlin. 24 hours per day, 365 days per year. The 1.8 kilometre-long tubes set new benchmarks in large-scale design and in technical standards. Fire protection boxes with safeguarded junctions from Spelsberg protect the electrical circuits.
The junction boxes of the special type WKE 300 BVG and WKE 400 BVT developed specifically for the Berlin Traffic Authority are made of an especially durable, halogen-free and self-extinguishing thermosetting plastic. In the case of fire, they assure the function of lighting and the evacuation equipment for at least 30 minutes. In addition, junction boxes of the Abox-i series from Spelsberg protect the electronics from the penetration of liquid and dust. They are highly resistant to fire, impact and break resistant and withstand even extreme temperatures in a range from -35 to 75 degrees Celsius.
Tunnels are fascinating structures. They shorten routes, pass under seas and bore through mountain massifs. Tunnels facilitate the transport of goods and connect people. In this complex microcosm, the requirements on the technical equipment are especially high. Safety has the highest priority.
Spelsberg products connect the electrical tunnels that are drawn through the tunnel. They provide a safe flow of electricity, even in case of danger. Junction and connection boxes with functional integrity from Spelsberg are part of the safety concept of numerous tunnel systems around the world. The electrical installation that is used must also ensure that emergency lighting, alarm systems, ventilation and extinguishing systems remain available for as long as possible, even in case of fire. Components from Spelsberg with functional integrity in classes E30-E90 in accordance with DIN 4102 Part 12 assure effective protection.
This is essential, because the daily stress on tunnel infrastructure is enormous. Pressure waves, corrosion and dirt subject the electrical installation to a constant endurance test. Optimal installation material must be installed. With their robust design, Spelsberg products for tunnels can withstand extreme conditions.