Arched catenary protection
Screen with curved arches above the railing, keeping users away from the overhead line. Arches and panels made to the project drawings.
Schematic, non-contractual
Use
Arched catenary protection is fitted to bridges crossing an electrified railway when the project calls for a screen curving towards the inside of the structure. The arches keep users away from the overhead line and limit objects being thrown onto the tracks.
Design
Curved arches stand above the railing and carry solid, perforated or mesh panels. Arch geometry, panels, fixings and corrosion protection are defined by the railway manager's requirements and the project drawings.
Our scope
Manufacturing of the arches and panels in our Bouskoura workshop to the project drawings, then installation on the structure by our teams.
For your quote
Send us the structure drawings, the length to be fitted, the applicable railway requirements and the planned work period.
Frequently asked questions
What is a BN4 barrier?
It is a steel safety barrier for bridge edges: horizontal rails are fixed to supports anchored into the structure with shear bolts. ADL manufactures the supports in its Bouskoura workshop; the rails are galvanised sections imported by ADL. The BN4 type is described by the Moroccan reference NM 10.9.299, which adopts the French standard NF P 98-421.
Is the S7 railing a safety barrier?
No. The S7 is a railing that protects pedestrians on bridge footways; it does not restrain vehicles. It can complement a safety barrier on the same structure.
Do your products have an approval?
An approval is specific to a product and often to a project or a project owner. We only mention it on a product sheet when we hold the corresponding document, which can then be provided on request. For a tender, ask us for the file available for the equipment concerned.
Do you install on site?
Yes. ADL manufactures the equipment in its Bouskoura workshop and installs it on site with its own teams. In your request, state the structure, the length to be fitted and any site access constraints.