1. Main types of bridges

According to the material, structure and use, the bridge can be divided into the following categories:

(1) Classification according to material

Steel bridge: galvanised steel or stainless steel, high strength, suitable for industrial environment.

Aluminium alloy bridge: lightweight, corrosion-resistant, suitable for data centres and clean plants.

Fibreglass reinforced plastic bridge (FRP): corrosion-resistant and insulated, used in harsh environments such as chemical and marine.

Plastic bridge (PVC/PE): low cost, suitable for light cable laying.

(2) Classification by structure

Type Characteristics Applicable Scene

Ladder bridge Open structure, good heat dissipation, strong load bearing Power cable, industrial plant 

Trough bridge Fully enclosed, dustproof, anti-interference Data centre, precision electronic equipment 

Tray type bridge Semi-enclosed, both heat dissipation and protection Commercial buildings, integrated wiring system 

Grid-type bridge Lightweight, well ventilated, easy to maintain Data centre, communication room 

2. Core application areas of bridge

(1) Building electrical engineering

Commercial buildings: laying of strong power (distribution cable), weak power (network, monitoring, fire cables).

Residential area: cable management of underground garage and public area.

Hospitals/schools: safe wiring to avoid exposed cables.

(2) Industry and Energy

Factory floor: overhead laying of power cables and control cables (e.g. petroleum, chemical and metallurgical industries).

Power plant / substation: bridge laying of high-voltage cables to ensure safe isolation.

New energy field: cable support systems for photovoltaic power stations and wind farms.

(3) Data centre and communication

Server room: orderly arrangement of optical fibres and network cables (commonly used mesh-type or trough-type bridge).

5G base station: fixing and protection of communication cables.

(4) Transport Infrastructure

Metro/Tunnel: bridge laying of lighting, signal and power supply cables.

Airport/High-speed railway station: integrated cabling to meet the demand for separation of strong and weak power.

(5) Special environment

Chemical/offshore engineering: corrosion-resistant bridge (e.g. FRP, 316 stainless steel).

Mining/oilfield: explosion-proof, impact-resistant heavy-duty bridge.