The Airbus A320 family, a single-aisle, twin-engine jetliner, is the world’s best-selling commercial aircraft series. Since its introduction in 1988, it has relied on a vast internal wiring and cable network to connect its avionics, flight controls, engines, and cabin systems. This network is the aircraft’s central nervous system, and the cables within it are known as aviation cables for Airbus A320.
This article explains what these cables are, their key types, and their critical locations throughout the A320.
Aviation cable for Airbus A320 refers to the specialized wires and cables designed and certified for installation on A320 family aircraft. They are engineered to meet stringent requirements for weight, size, temperature, and electromagnetic compatibility, far exceeding those of industrial cables.
Key Characteristics:
A320 cables are categorized by their function and construction. Here are the primary types:
| Category | Key Examples | Primary Function |
|---|---|---|
| Power Cables | • Aluminum Power Feeder Cables(e.g., 180°C) • High-Temperature Copper Wires(e.g., MIL-W-7139, 250°C) | Distribute electrical power from generators and batteries to systems and equipment. |
| Signal & Control Cables | • EN / MIL Standard Wires(e.g., E0261, E0270) • Thermocouple Extension Wires | Carry low-current signals for sensors, switches, and control systems, ensuring accurate data transmission. |
| Data Bus & Communication Cables | • ARINC 429 Data Bus Cables • Coaxial Cables • Fiber Optic Cables | Transmit digital data between avionics units (ARINC 429), RF signals (coax), and high-bandwidth data (fiber). |
| Audio & Intercom Cables | Shielded audio cables | Connect crew intercom, passenger address, and entertainment systems, with shielding to block interference. |
| Fire-Resistant Safety Cables | Cables per MIL-W-25038 | Provide critical control and indication during fires, maintaining operation for a minimum duration (e.g., 5 minutes at 1093°C). |
| Flight Control System (EFCS) Cables | Wires to actuators, pink-tagged per E0248 | Connect the fly-by-wire computers to control surfaces (ailerons, elevators, rudder). Often have redundant shielding and special routing. |
Cables are routed throughout the entire aircraft, organized into harnesses that connect systems across compartments. Key locations include:
Selecting the right aviation cable for Airbus A320 applications requires careful attention to detail.
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