Glossary of firefighting equipment#H

Hose bridges are usually used by the fire service and offer the possibility to transfer hoses on roads or paths without having to lock it, and vehicles continue to ensure a crossing opportunity.

Reason

When hose lines over long distances or to a work site on the other side of the road as the water intake point, hose bridges must be used in order not to bring the traffic to a halt and to avoid damage to the hose.

Species

Single storey

The hose bridges are usually made of screw- on webbing tapered squared timbers. The distances between the timbers are adapted to the tube diameter.

Other hose bridges consist of three aluminum components. The U-shaped central portion is placed over the installed tubing, at the two outer edges of a respective sloping component is inserted, the lower edge is gummed to obtain a clean passing over the tubes is made possible. Also of hard rubber, there are tube bridges each consist of a part.

Per direction of travel of the street three tubing bridges must be designed to allow dual gauge ( Car / Truck )

Above the Street

Tube - tube overpasses, where the hoses should be above the roadway, consisting of two parallel interconnected tubes with B- couplings, and four vertical bars, like a tent pole. This form is carried on hose cart. A tube - tube transfer in accordance with DIN 14 821 has the following dimensions:

Overall height: 4.20m, Height: 4.00m, Width (top ): 3.30m, Width ( bottom): 5.50 m

Couplings: 2 B- Storz (75 mm)

Such transfer may also be provisionally assembled from four scaling ladder parts. For this purpose, two fixed ladders must be constructed, and shall be so positioned on both sides of the road, so that the hose hangs over the road. The vehicles can then pass under the hoses.

Alternatives

Sometimes, but it is also possible that one (usually the storm sewer ) passes under roads through the existing sewer network with the hoses. This is the current flowing traffic, especially at busy roads, hindered considerably less. Otherwise, the lock of the road is often necessary since otherwise still leads to severe traffic delays by the slow crossing the hose bridges and team are tied for the supervision.

In railway tracks underpasses for hoses are often already built-in. Here, a tube can be connected to each side, and in the center is a rigid tube. Alternatively, a hose between the railroad ties under the track itself be carried out.

• Firefighting Equipment