Wherever cables and hoses are in use, overhead cable bridges ensure clear passage for road traffic. In this article, you will learn when they are used, what they have to do with mobile heating systems, and which designs are available.
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What Is an Overhead Cable Bridge?
An overhead cable bridge is a temporary or semi-temporary crossing structure used to guide supply lines such as cables, hoses, or pipes at a safe height over a busy traffic area. Its primary purpose is to guarantee the free passage of road traffic while simultaneously protecting the laid media from damage caused by vehicles driving over them.
What Are Overhead Cable Bridges Used For?
The construction of a cable bridge for road crossing differs fundamentally from simple, ground-level cable protectors (see hose bridges). It typically consists of a stable triangular lattice girder system mounted on two massive bases (often concrete bases).
Such overhead crossings are used in various scenarios where a temporary crossing of traffic routes is necessary:
- Construction Sites: They are used for the safe routing of power cables, water pipes, or hoses over construction site entrances or public roads.
- Events: At large events, trade fairs, or festivals, they enable the temporary routing of lines over access roads.
- Infrastructure Projects: They are used to bridge tracks, bodies of water, or main traffic arteries during construction or maintenance work.
A central criterion for this type of cable bridge is compliance with the legally prescribed minimum clearance height, which is generally 4.5 meters or 5 meters. This ensures that even trucks (LKW) and emergency vehicles can pass through the passage unhindered.
In summary, overhead cable bridges are primarily used in the context of construction sites, events, and infrastructure maintenance work.
Why Are Cable Bridges Needed in Connection with Mobile Heating Systems?
In the context of mobile heating centers, the cable bridge for road crossing is an important accessory. Mobile heating systems are frequently used during outages, maintenance work, or the renovation of stationary heating systems, as well as at large events.
The lines often have to be routed across public roads or access routes. These lines typically include:
- Flexible Hoses: For the flow and return of heating water.
- Power Cables: For the electrical supply of the heating center.
The overhead crossing structure ensures:
- Traffic Safety: Flowing traffic is not obstructed, and there is no danger from obstacles on the roadway.
- Media Protection: The hoses, which may be carrying pressure and heat, and the sensitive power cables are protected from damage by traffic, which ensures a continuous and safe heat supply.
What Are the Different Types of Cable Bridges?
There are two main categories of cable bridges:
| Type | Overhead Cable Bridge (Scaffolding) | Ground-Level Cable Protector (Mat) |
|---|---|---|
| Purpose | Free passage of traffic under the bridge | Protection against driving over on the roadway |
| Height | Minimum 4.5 m to 5 m clearance height | A few centimeters (drive-over threshold) |
| Construction | Triangular lattice girder, concrete bases, cable bracing | Modular rubber elements, plastic |
| Application | Crossing roads, tracks, main traffic routes | Construction sites, sidewalks, events (low speed) |
| Spans | Variable, e.g., 6 m, 8 m, 10 m, 12 m, 15 m | Standard widths (e.g., 1 m) |
The scaffolding structures are modular and available in various spans to cover different road widths.
References:
Ecom Tech GmbH. (seen on 10/10/2025). 8m Strassenüberführung.
Baustrom München. (seen on 10/10/2025). Kabelbrücken und Staßenaufständerungen.