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FIRE PROTECTION Table of Contents Vol. 2 09−00−1 REV 66, Feb 01/07 CHAPTER 9 - FIRE PROTECTION 09−00−1 CL−604 Operating Manual PSP 604−6 TABLE OF CONTENTS Page TABLE OF CONTENTS LIST OF ILLUSTRATIONS DESCRIPTION Figure 09−10−1 Engine Fire Detection 09−10−2 Figure 09−10−2 Jet Pipe/Pylon Overheat Sensing Element 09−10−2 Figure 09−10−3 Engine and APU Fire Extinguishing System 09−10−4 Figure 09−10−4 Glareshield Panels 09−10−5 Figure 09−10−5 Miscellaneous Test Panel 09−10−5 Figure 09−10−6 APU Fire Detection 09−10−6 Figure 09−10−7 Copilot’s Glareshield Panel 09−10−8 Figure 09−10−8 Smoke Detector Test Button 09−10−9 Figure 09−10−9 Main Landing Gear Bay Overheat Heat-Sensing Element 09−10−11 Figure 09−10−10 Landing Gear Control Panel 09−10−12 Figure 09−10−11 Glareshield Panels 09−10−13 Figure 09−10−12 Miscellaneous Test Panel 09−10−14 Figure 09−10−13 Landing Gear Control Panel 09−10−14 Figure 09−10−14 Annunciator Panel 09−10−15 FIRE PROTECTION Table of Contents Vol. 2 09−00−2 REV 66, Feb 01/07 CL−604 Operating Manual PSP 604−6 Page GENERAL The fire protection system is divided into two separate subsystems: • Fire and overheat detection system • Fire extinguishing system The fire and overheat detection system includes components which detect fire, overheat, or smoke conditions. Fire and overheat detection is provided in the following areas: • Engines • Jet pipe and pylons • APU • Main landing gear Smoke detection is provided in the baggage compartment and the lavatory. Provisions are also made for an optional galley overheat detection system. The fire extinguishing system delivers an extinguishing agent to protected areas of the aircraft; Zone A of the engines, and the APU enclosure. The detection and extinguishing systems can be tested and monitored from the cockpit. Portable fire extinguishers are provided in the cockpit and cabin. ENGINE FIRE/OVERHEAT PROTECTION Description The engine fire and overheat protection system detects fire and/or overheat conditions in the nacelle, jet pipe, and pylon areas of the engine. The engine fire and overheat protection system is divided into two zones, Zone A and Zone B: • Zone A includes the combustion area of the engine. Overheat/fire detection and extinguishing is provided. • Zone B consists of the jet pipe and pylon area. Only overheat/fire detection is provided for this zone. Each zone produces a distinctive aural and visual warning when an overheat and/or fire condition is detected. The extinguishing system consists of two fire extinguisher bottles. Either or both bottles can be discharged into the Zone A area of the engines. Components and Operation Heat-Sensing Elements Each zone of the engine is protected by a single continuous heat-sensing element (loop) connected to its respective fire detection control unit. Each sensing element is a coaxial cable, which has an inner conductor surrounded by an insulator material. The resistance of the insulating material decreases with an increase in temperature. The outer metal sheathing is permanently grounded. The loop resistance information is fed to the corresponding fire detection control unit. The Zone A sensing element is used to detect an overheat/fire condition in the combustion area of the engine. FIRE PROTECTION Description Vol. 2 09−10−1 REV 66, Feb 01/07 CL−604 Operating Manual PSP 604−6 ENGINE FIRE/OVERHEAT PROTECTION (CONT'D) The Zone B sensing element is used to detect an overheat/fire condition in the area where electrical harnesses and plumbing go through the engine pylon. In addition, this sensing element is used to detect an overheat condition in the exhaust nozzle area of the engine. Engine Fire Detection Figure 09−10−1 Jet Pipe/Pylon Overheat Sensing Element Figure 09−10−2 FIRE PROTECTION Description Vol. 2 09−10−2 REV 66, Feb 01/07 CL−604 Operating Manual PSP 604−6 ENGINE FIRE/OVERHEAT PROTECTION (CONT'D) Fire Detection Control Units Each heat-sensing element has its own fire detection control unit, which monitors the resistance www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：庞巴迪挑战者604操作手册 Operating Manual 4
