Vertical catenary protection
Vertical steel screen installed on bridges crossing an electrified railway, with solid, perforated or mesh panels.

Use
Catenary protection is installed on road bridges and footbridges that cross an electrified railway. It prevents contact with the overhead line and objects being thrown onto the tracks, and protects the users of the structure.
Design
The screen consists of solid, perforated or mesh panels fixed to posts. It can be built as an extension of a railing. Height, panel type, fixings and corrosion protection are set by the railway infrastructure manager's requirements and the project specifications.
Our scope
Laser cutting of the panels and their perforations, manufacturing of the posts and fixings in our Bouskoura workshop, then installation on the structure by our teams.
For your quote
Tell us the structure, the length to be fitted, the drawings, the applicable railway requirements and any constraints for working near the tracks.
Visuals
Schematic, non-contractual
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.
