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Solid THHN/THWN-2 WireFrom $0.20/ft -
Solid THHN/THWN-2 WireFrom $0.20/ft - Solid THHN/THWN-2 WireFrom $0.20/ft
- Solid THHN/THWN-2 WireFrom $0.20/ft
Airport Lighting Cable is a specialized, high-voltage electrical cable designed for critical airfield ground lighting (AGL) systems, including runways and taxiways. It powers visual aids that ensure safe aircraft operations in all conditions. This cable is engineered for exceptional durability and reliable operation in constant current series circuits, often buried directly in harsh environments.
Unlike standard electrical cables, Airport Lighting Cable is specifically designed for constant current series circuits, typically powered by Constant Current Regulators (CCRs). This means it must withstand high, fluctuating voltages (up to 5kV) without insulation breakdown, rather than being sized for voltage drop in parallel circuits. It also features a heavy-duty construction to resist moisture, jet fuel, de-icing chemicals, soil chemicals, and UV radiation, often for direct burial applications.
Airport Lighting Cable is mandated by rigorous standards to ensure safety and reliability. The primary standard is FAA Specification L-824, which outlines specific materials and construction. Additionally, FAA Advisory Circulars (ACs) such as AC 150/5345-7 and AC 150/5345-53 provide further guidance on cable selection and installation practices.
Airport Lighting Cable is primarily rated for 5kV for use in high-voltage primary series circuits, connecting Constant Current Regulators (CCRs) to isolation transformers. Lower voltage ratings, such as 600V, are used for secondary circuits that connect isolation transformers to individual lamps or LED fixtures. Some designs may also utilize 2kV cables.
Airport Lighting Cable is essential for powering and controlling a wide range of airfield ground lighting systems. Typical applications include: - Runway Lighting: Edge lights, centerline lights, touchdown zone lights, and runway end lights. - Taxiway Lighting: Edge lights and centerline lights. - Approach Lighting Systems: Visual aids for aircraft landing. - Other Airfield Lighting: Obstruction lighting, navigational aids, and various control circuits within the airport.
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Airport lighting cable, specifically Type L-824, is a highly specialized underground conductor designed to power airfield lighting circuits, including runway, taxiway, and approach lighting systems. These cables are engineered to operate within constant current series circuits, typically powered by a Constant Current Regulator (CCR). Available in both 600V and 5000V (5kV) ratings, L-824 cable is constructed with high-performance Cross-Linked Polyethylene (XLPE) or Ethylene Propylene Rubber (EPR) insulation. This robust shielding provides exceptional resistance to moisture, soil chemicals, and specialized aviation fluids such as jet fuel and de-icing agents. Whether used for direct burial or installed in conduit, these cables ensure the reliable operation of critical visual aids necessary for safe aircraft navigation.
Installation Note: Per FAA guidelines, L-824 cable must be handled with extreme care to avoid nicks or abrasions in the insulation, as even minor damage can lead to "ground faults" that disrupt the entire series circuit. When making connections, it is mandatory to use FAA-approved L-823 heat-shrinkable or molded rubber connector kits. Always perform an insulation resistance (Megger) test prior to and after backfilling the trench to ensure the circuit's integrity meets the minimum megohm requirements specified in FAA AC 150/5340-30.
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