GB/T 47723-2026Wind energy generation systems - Automatic fire protection systems for wind turbines (English PDF)

8.1 Perfluorohexanone fire extinguishing system

8.1.1 It shall comply with the requirements of GB 45944.

8.1.2 The service life should match the service life of the wind turbine generator set, preferably 10 years.

8.1.3 The working environment temperature should be between -40°C and 70°C.

8.1.4 It should have signal feedback function.

8.2 Aerosol Fire Extinguishing Device

8.2.1 Aerosol fire extinguishing systems shall be designed for total flooding and comply with the provisions of GB 50370.

8.2.2 Aerosol fire extinguishing devices shall meet the requirements of XF499.1-2010.

8.2.3 Aerosol fire extinguishing devices shall be capable of extinguishing Class A polymer fires.

8.2.4 The service life of aerosol fire extinguishing devices should match the service life of wind turbine generator sets.

8.2.5 The insulation strength of the solid sediment of the extinguishing medium in aerosol devices shall not be less than 50 MOmega.

8.2.6 The operating ambient temperature of aerosol fire extinguishing devices should be between -50°C and 85°C.

8.2.7 Aerosol fire extinguishing devices shall meet the electromagnetic compatibility requirements under the actual operating conditions of wind turbine generator sets.

8.2.8 When using the hot start method, the hot initiator should not experience flameout or flame penetration during ignition.

8.2.9 Thermal aerosol fire extinguishing devices shall undergo a transportation hazard assessment and be packaged, transported, and stored in accordance with the corresponding requirements.

8.2.10 Thermal aerosol fire extinguishing devices shall have signal feedback function.

8.2.11 The start/feedback signal line shall be selected with a flammability rating of not less than B2 grade in GB 31247-2014.

8.2.12 To ensure the safety of wind turbine generator equipment, the temperature at a distance of 5mm from the nozzle of a temperature-limited thermal aerosol fire extinguishing device should be less than [temperature value missing]. The nozzle temperature of the non-temperature-limited thermal aerosol fire extinguishing device should not cause damage to the equipment and cables, and a corresponding test report should be provided. prove.

8.2.13 Thermal aerosol fire extinguishing devices shall be able to start and discharge normally after a 2m drop test, without structural damage, and the discharge performance shall meet the requirements. Require.

8.2.14 Thermal aerosol fire extinguishing devices should be evenly distributed within the protected space, with a clear discharge path, and there should be no obstructions in front of them during discharge. Objects should not face the access routes for personnel within the protected area.

8.3 Dry powder fire extinguishing system

8.3.1 Dry powder fire extinguishing devices shall have a type test report issued by a qualified unit, and shall include performance specifications for wind turbine nacelle-specific fire extinguishing devices. Specialized testing. The design of dry powder dosage should refer to the results of specialized testing on the performance of fire extinguishing devices specifically designed for wind turbine nacelles.

8.3.2 The service life of dry powder fire extinguishing devices should match the service life of wind turbine generator sets, preferably 10 years.

8.3.3 The operating ambient temperature of dry powder fire extinguishing devices should be between -50°C and 85°C.

8.3.4 Dry powder fire extinguishing devices shall meet the electromagnetic compatibility requirements under the actual operating conditions of wind turbine generator sets.

8.3.5 Dry powder fire extinguishing devices should be non-pressurized.

8.4 Non-pressurized ultrafine dry powder fire extinguishing device The following requirements shall be met when designing non-pressurized ultrafine dry powder fire extinguishing devices.

a) Ultrafine dry powder fire extinguishing agents shall comply with the requirements of XF578 and shall possess a mandatory fire protection product certification certificate. It should have the ability to prevent the reignition of oil fires and should have a relevant test report issued by an authoritative institution.

b) Non-pressurized ultrafine dry powder fire extinguishing devices should have both automatic control and heat-sensing self-starting modes, and should have a start signal feedback function. Feedback function. After any ultrafine dry powder fire extinguishing device is activated, the activation signal should be fed back to the main control room of the wind power plant.

c) The extinguishing agent mass of a single suspended fire extinguishing device should not exceed 5 kg, and the suspension bracket (base) should be able to withstand more than 5 times its weight. The total mass of the fire extinguishing device should not be deformed or detached. The suspension bracket (base) of the fire extinguishing device should not deform during operation. Phenomena such as deformation, ring detachment, or shedding.

d) The design extinguishing concentration of the extinguishing agent should not be less than

1.2 times the extinguishing concentration certified by an authoritative institution.

e) The calculation and configuration of extinguishing agent dosage for ultrafine dry powder fire extinguishing devices shall be carried out in accordance with the provisions of GB 50347.

f) When used for full-space protection of a specific protected unit, total flooding fire suppression should be employed, preferably using ultrafine dry powder fire extinguishing agents. The opening area of the protective unit, the fire resistance rating of the enclosure structure, etc., should comply with the provisions of GB 50347; when used for protective units... When protecting a specific piece of equipment or component within a building, a localized fire suppression system is recommended. When using a localized fire suppression system, the protection... The air velocity around the protected object should not exceed 2 m/s.

g) When multiple ultrafine dry powder fire extinguishing devices are installed in the same protected unit, the total number of ultrafine dry powder fire extinguishing devices and the total amount of extinguishing agent used should be [not specified]. The quantity, start-up interval, and total start-up time should all comply with the provisions of GB 50347.

9.2 Installation of Linear Beam Smoke Detectors

9.2.1 The vertical distance from the detector beam axis to the top should be 0.3m to 1.0m.

9.2.2 The distance between the transmitter and receiver (the detector and reflector of a reflective detector) should not exceed 100m.

9.2.3 The horizontal distance between the beam axes of two adjacent detector groups should not exceed 14m, and the horizontal distance from the detector beam axis to the sidewall should not exceed 7m, and should not be less than 0.5m.

9.2.4 The transmitter and receiver (detector and reflector of a reflective detector) shall be mounted on a fixed structure and shall be securely installed. If necessary... When installed on a structure prone to displacement and deformation, the displacement of the structure should not affect the normal operation of the detector.

9.2.5 There should be no obstructions in the optical path between the transmitter and the receiver (the detector and the reflector of a reflective detector).

9.2.6 The receiver (the detector of the reflective detector) should be protected from direct sunlight and artificial light sources.

9.3 Installation of Linear Heat Detectors

9.3.1 When installing on equipment such as cable trays and transformers, a contact-type arrangement should be adopted.

9.3.2 The sensitive components of the detector shall be fixed using the fixing devices provided with the product, and the spacing between the fixing devices shall not exceed 2m.

9.3.3 The sensitive components of cable-type linear heat detectors should be installed continuously without joints; if intermediate wiring is absolutely necessary, it should be installed using a dedicated... Connect using a junction box; when installing sensitive components, prevent them from being subjected to heavy pressure or impact, and avoid bending or twisting them. The bending radius of the detector should be large. At 0.2m.

9.4 Installation of point-type flame detectors and image-type fire detectors

9.4.1 The installation location should ensure that its field of view covers the detection area, and the light source should be prevented from shining directly on the detector window.

9.4.2 There should be no obstructions within the detector's field of view.

9.4.3 During installation, dustproof and waterproof measures should be taken.

9.5 Installation of the detector base

9.5.1 It shall be installed securely and the connection to the wire shall be reliably crimped or welded. When welding is used, corrosive flux shall not be used.

9.5.2 The connecting wires should have a slack of not less than 150mm, and their ends should be clearly marked with permanent markings.

9.5.3 The wiring holes should be sealed, and protective measures should be taken for the installed detector base.

9.5.4 The detector alarm confirmation light should face the main entrance in a way that is easy for personnel to observe.

9.5.5 Before debugging, the detector should be properly stored and protected against dust, moisture and corrosion.

9.5.6 Manual fire alarm buttons, start and stop buttons should be installed in conspicuous and easily accessible locations, with their bottom edge preferably at a height of The height should be 1.3m to 1.5m, and a clear, permanent sign should be provided.

9.6 Installation of emergency power supply

9.6.1 Emergency power supplies and backup power batteries for fire-fighting equipment should be installed in well-ventilated locations. If installed in a sealed environment, ventilation is required. measure.

9.6.2 The ambient temperature of the battery installation site should not exceed the battery's nominal operating temperature range; it should not be installed in fire or explosion hazard areas.

9.7 Installation of system grounding and dedicated grounding wire

9.7.1 The power supply and equipment enclosure of the fire protection system shall be connected to the electrical grounding protection conductor (PE).

9.7.2 Fire extinguishing devices in the engine room should preferably be suspended and should cover key components such as generators, gearboxes, main shafts, and high-speed shafts.

9.7.3 The automatic fire suppression system for electrical cabinets is divided into separate zones for each cabinet, and the fire suppression range covers the entire cabinet.

9.7.4 The pre-installed or pre-embedded mounting brackets and mounting base plates on the wind turbine generator set shall be firm and reliable, with sufficient load-bearing capacity.

9.7.5 The cables used in automatic fire suppression systems shall use standard color wires and be flame-retardant or fire-resistant cables. The type of conductor, voltage, etc., shall be specified. The grade should comply with the provisions of GB 50116-2013.

9.7.6 Shielded cables should be used for automatic fire protection cables, and equipotential bonding should be ensured. When metal conduits are used for cable laying, proper equipotential bonding of the conduits should be ensured. Potential and grounding.

9.7.7 The transmission lines of fire detectors shall be labeled, and the wiring terminals shall be numbered.

9.7.8 When various types of pipelines are laid in the open, they should be hoisted or fixed with separate clamps or supports, and the diameter of the hanger rod should not be less than 6mm.

9.7.9 When various types of pipelines are concealed, they should be laid in non-combustible structures, and the thickness of the protective layer should not be less than 30mm.

9.7.10 All pipe openings and pipe connections laid in dusty or damp locations shall be sealed.

9.7.11 Cables should not have joints or kinks inside conduits or cable trays. Wire connections should be completed inside junction boxes and must be made by soldering or crimping. Use either a wire or terminal block to ensure a reliable connection.

9.8 Debugging

9.8.1 The commissioning of automatic fire protection systems shall comply with the relevant requirements of GB 50116-2013.

9.8.2 The commissioning of automatic fire protection systems shall meet the following requirements.

a) After the system wiring is laid, use a 500V megohmmeter to measure the insulation resistance of each circuit wire to ground, and the insulation resistance value should not be small. At 20MOmega.

b) During commissioning, use dedicated smoke and temperature detector testing equipment to simulate tests on the detectors, trigger the corresponding detectors, and check the fire. Disaster alarm and its linkage to the wind turbine generator main control PLC event log.

c) During equipment commissioning, place the gas extinguishing controller in maintenance mode and disconnect the extinguishing device. If disconnection is not possible, activate the extinguishing device. The ignition device is tested using an indicator light or resistor of equivalent power. During the test, it is checked whether the starting power meets the actual load. Equipment requirements.

d) After the installation test is completed, record and save the installation test results, and restore the system to its normal working state before the test.

9.9 Other Doubly-fed, direct-drive, and semi-direct-drive wind turbines differ in structure, resulting in different technical requirements for their automatic fire suppression systems. (Doubly-fed turbine automatic fire suppression system...) Typical installation examples for the system are shown in Appendix B; typical installation examples for direct-drive unit automatic fire suppression systems are shown in Appendix C; and for semi-direct-drive unit automatic fire suppression systems... A typical installation example is shown in Appendix D.

10.1 General Rules

10.1.1 The maintenance and management of the unit's fire protection facilities includes duties such as duty shifts, inspections, testing, repairs, maintenance, and record keeping.

10.1.2 After the unit's fire protection facilities are put into use, they should be in normal working condition. All power switches for the unit's fire protection facilities should be in normal operating condition. The location of the fire protection facilities and related equipment electrical control cabinets should be clearly marked with their on/off status; if the electrical control cabinets of fire protection facilities and related equipment have control mode switching devices, their control mode should be clearly marked with their on/off status. The feedback should be sent to the fire control room.

10.1.3 Fire protection facilities should not be shut down without authorization. If a malfunction is discovered during duty, inspection, or testing, repairs should be organized promptly. Due to malfunction repairs, etc. If it is necessary to temporarily suspend the fire protection system, there should be effective measures to ensure fire safety, and the suspension should be approved by the person in charge of fire safety in the unit.

10.1.4 The fire protection system of the wind turbine generator set shall be kept running continuously and shall not be interrupted at will.

10.1.5 When a fault is discovered, it should be repaired promptly and a record should be made. Major problems should be reported immediately, and maintenance and repair work should be carried out without interruption, with preventative measures implemented. measure.

10.1.6 Records shall be made after daily inspections, patrols, maintenance and functional tests of the fire protection system. See Appendix E for the record form.

10.1.7 Routine inspections should be conducted on the appearance, working status, and self-inspection functions of each component of the wind turbine generator's fire protection system.

10.1.8 Functional testing of fire detectors, fire alarm controllers, and fire extinguishing control devices to ensure annual testing of all units' fire protection system equipment. Test at least once. At the same time, inspect the appearance and safety of key components of the fire extinguishing system, such as the extinguishing agent storage container, automatic activation device, and temperature sensing element. Installation status and working condition.

10.1.9 An annual linkage test of the fire protection system of all wind turbine generators in the entire wind farm shall be conducted, including the test of the fire alarm controller. The functions of the fire extinguishing control device and fire detectors were tested, including simulated activation tests of the fire extinguishing device and related automatic control. Tests such as the linkage start-up of control equipment.

10.1.10 The fire protection system of wind turbine generator sets shall be inspected at least once a year.

10.1.11 The quantity, frequency, and content of daily inspections, patrols, and functional tests of the fire protection system of wind turbine generator sets shall comply with GB 50263. Regulation.

10.2.1 General Requirements

10.2.1.1 The wind farm shall formulate a corresponding inspection system for the inspection of fire protection facilities of wind turbine generator sets.

10.2.1.2 Personnel engaged in fire protection facility inspection should be proficient in operating fire protection facilities.

10.2.1.3 The inspection of fire protection facilities for wind turbine generator sets should clearly specify the inspection locations, frequency, and content. A "Fire Protection Facility Inspection Record" should be filled out during the inspection. Record the faults (see Table E.1). If a fault is found during the inspection, it should be handled according to the maintenance requirements.

10.2.2 Inspection Contents

10.2.2.1 The inspection contents of the automatic fire alarm system are shown in the "Automatic Fire Alarm System" section of Table E.1.

10.2.2.2 The inspection contents of the gas extinguishing system are shown in the "Non-pressurized dry powder and aerosol extinguishing devices" section of Table E.1.

10.2.2.3 The inspection contents of the dry powder fire extinguishing system are shown in the "Dry Powder Fire Extinguishing System" section of Table E.1.

10.2.2.4 The inspection contents of fire extinguishers are shown in the "Fire Extinguisher" section of Table E.1.

10.2.2.5 Other items that need to be inspected are listed in the "Other Inspection Items" section of Table E.1.

10.3 Detection

10.3.1 The fire protection facilities of wind turbine generator sets shall be inspected at least once a year, and the inspection objects shall include all system equipment, components, etc.

10.3.2 Personnel engaged in the testing of fire protection facilities should be able to operate the fire protection facilities proficiently.

10.3.3 The "Fire Protection Facility Inspection Record Form" (see Table E.2) shall be filled out for the inspection of fire protection facilities.

10.4 Maintenance

10.4.1 Personnel engaged in the maintenance of fire protection facilities should have the corresponding qualifications.

10.4.2 If problems or malfunctions are found in fire protection facilities during inspections, tests, and fire drills, the relevant personnel shall fill out the "Fire Protection Facility Malfunction Repair Record". Record the information in the form (see Form E.3) and report it to the unit's fire safety manager.

10.4.3 The unit's fire safety manager shall immediately notify maintenance personnel to repair any problems or malfunctions in the fire protection facilities. Maintenance period. During this period, effective measures should be taken to ensure fire safety. After troubleshooting, corresponding functional tests should be conducted and the unit's fire safety manager should inspect the equipment. Confirmed. The maintenance details should be recorded in the "Fire Protection Fault Maintenance Record Form" (see Form E.3).

10.5.1 General Provisions

10.5.1.1 A plan shall be developed for the maintenance of fire protection facilities, specifying the names of the fire protection facilities, the content of maintenance and the cycle (see Table E.4).

10.5.1.2 Personnel engaged in the maintenance of fire protection facilities should be able to operate the fire protection facilities proficiently.

10.5.1.3 Weighing, pressure measuring, and other measuring instruments used in fire protection facilities that require metrological verification shall be periodically calibrated in accordance with relevant regulations and submitted for approval. Provide valid supporting documentation. The organization should maintain a certain quantity of easily damaged fire-fighting equipment parts or have signed relevant contracts with manufacturers and suppliers. Ensure supply.

10.5.1.4 When performing maintenance on fire protection facilities, fill out the "Fire Protection Facility Maintenance Record Form" (see Table E.4) and perform corresponding functions. test.

10.5.2 Maintenance Procedures

10.5.2.1 Firefighting equipment that is easily contaminated, corroded, or rusted should be cleaned and rusted regularly.

10.5.2.2 Point-type smoke detectors should be cleaned and calibrated regularly according to the requirements of the product manual; if the product manual does not specify otherwise. Fire detectors should be cleaned and calibrated every two years. Calibration of fire detectors should be undertaken by the manufacturer or a qualified testing institution. The unit should issue a calibration record.

10.5.2.3 For fire-fighting equipment where batteries are used as backup power sources, the batteries should be maintained regularly in accordance with the requirements of the product manual.

10.5.2.4 Other types of fire-fighting equipment shall be maintained and serviced regularly in accordance with the requirements of the product manual.

10.5.2.5 For vulnerable parts and fire-fighting equipment whose service life exceeds the lifespan indicated in the product manual, and for equipment that has failed inspection and testing to function properly... Fire detectors, pressure vessels, and extinguishing agents used in fire protection should be replaced in a timely manner.

10.5.2.6 Fire detectors shall have test reports for vibration resistance, high temperature resistance and low temperature resistance for wind turbine generator sets in special environments.

10.6 Archives

10.6.1 Content Fire protection facility files should include basic information about the fire protection facilities and their dynamic management status. Basic information includes acceptance documents and production records for the fire protection facilities. Original technical documents such as product and system user manuals, system debugging records, and electrical schematic diagrams of the unit's fire protection facilities. Dynamic management includes fire... Inspection records, testing records, fault repair records, maintenance plans, and maintenance records of fire prevention facilities.

10.6.2 Retention Period The "Fire Protection Facility Inspection Record Form" should be archived for no less than one year. The "Fire Protection Facility Inspection Record Form" and "Fire Protection Facility Malfunction Repair Record Form" should also be archived. The archiving period for the "Fire Protection Facility Maintenance Record Form" and the "Fire Protection Facility Maintenance Record Form" should not be less than 5 years.