GB 16280-2014Line type heat fire detectors (English PDF)

4.2 General requirements

4.2.1 appearance requirements Detector surface should be free from corrosion, coating loss and blistering, no scratches, cracks, burrs and other mechanical damage, no fastening parts Loose.

4.2.2 detectors and alarm standard length

4.2.2.1 detectors should be part of the sensitive components and their associated signal processing unit and other components. Temperature sensitive components can be divided into cable, empty Trachea, temperature fiber, splicing fiber grating and its components, point-type temperature sensing element and connection components.

4.2.2.2 disassembly and connecting the detector elements should only use special tools before proceeding. Standard alarm probe length

4.2.2.3 should not exceed the maker said the standard alarm length, and shall meet the following requirements.

a) Standard alarm cable length type linear heat detectors should not exceed 1m.

b) standard alarm length air tube type linear heat detectors should not exceed 10% of the maximum length of use, and not more than 10m.

c) standard alarm length fiber distributed linear heat detectors should not exceed 3m.

d) standard alarm length of the fiber grating linear heat detectors and linear multi-point type heat fire detectors should not exceed 10m, Each standard alarm length should contain at least one complete temperature sensing element, and should meet one of the following requirements.

--- Not more than 1m;

--- More than 1m, and not more than 3m;

--- Greater than 3m, Localization detectors each temperature sensing element should be able to identify parts of the press, the positioning partition type detectors Each temperature sensing element should be able to identify by district, and the length of each partition sensitive components should not exceed 100m. NOTE. The standard alarm length is consistent with this standard detector movement detector performance requirements for the minimum length required for heating.

4.2.3 Detector sensitive components

4.2.3.1 Each detector sensitive member length should meet the following requirements.

a) The total optical fiber distributed linear heat detectors and fiber grating linear temperature sensitive fire detector is not greater than the length of the member 10km;

b) air tube type linear heat detectors sensitive to individual member length should be between 20m ~ 100m, the total length of no more than 800m;

c) The total cable type linear heat detectors and linear multi-point type heat fire detector sensing element length of not more than 2km.

4.2.3.2 fiber grating linear heat detectors and linear multi-point type heat detectors, temperature sensing element spacing L should meet the following One of the requirements.

a) standard alarm length of not more than 1m, L can not be changed;

b) standard alarm length greater than 1m, and not more than 3m, L may vary within the range of 1m ~ 3m;

c) standard alarm length greater than 3m, L may vary within 3m ~ 10m range.

4.2.3.3 fiber grating linear heat detectors and linear multi-point type heat detectors should be obvious non-attached temperature sensing element at Identification of sensitive components or in the outer jacket is provided with 1m labeled interval Interval Error Flag is not more than 10mm, should be every 50m You can identify sensitive components of the actual length of the length in meters marked.

4.2.3.4 cable type linear heat detectors and sensitive components of distributed fiber optic linear heat detectors shall be provided with an outer sheath 1m Labeled interval Interval Error Flag is not more than 10mm, 50m every sensitive components should be identified the actual length in meters single The length of the bit marked.

4.2.4 Detector signal processing unit

4.2.4.1 Distributed Fiber linear heat detectors and linear multi-point type heat detectors signal processing unit of a large number of channels should not be To four.

4.2.4.2 should set up an independent fire alarm, fault and operational status indicators, fire alarm status light indicates red, a fault condition with Yellow light, green LEDs indicate operating status.

4.2.5 The main component performance

4.2.5.1 General requirements The main components of the detector should comply with the relevant requirements of the national standard stereotypes products, and should meet the following requirements.

4.2.5.2 Indicator 4.2.5.2.1 All lights should be adopted Chinese clearly marked its features. 4.2.5.2.2 When each indicator is lit in front of it at 3m, in the light of not more than 500lx environmental conditions should be clear Xi visible.

4.2.5.3 display (device) 4.2.5.3.1 Display (control) should at least use Chinese display information. 4.2.5.3.2 information display (device) in the display state, in the light of not more than 500lx environmental conditions, should be displayed in front of its positive 0.8m at the side, clearly readable 22.5 ° viewing angle range.

4.2.5.4 Audio Devices Under normal operating conditions, the sound pressure level (A-weighted) sound detector in front of the device should be greater than 1m at 65dB, less than 115dB.

4.2.5.5 switches and buttons Switches and buttons (button) operation should be flexible, reliable, feature clearly labeled.

4.2.5.6 Auxiliary equipment connection When the probe is connected to other auxiliary equipment (remote acknowledgment lights, control relays, etc.), and auxiliary equipment between open and shorted cables should not be Affect the normal operation of the detector.

4.2.5.7 Terminals 4.2.5.7.1 terminals should be located inside the detector. 4.2.5.7.2 Terminal features should be clearly labeled. 4.2.5.7.3 different voltage levels of the terminals should be provided separately.

4.2.5.8 Power overcurrent protection devices Detector power overcurrent protection device rated operating current protection value generally should not be greater than 2 times the maximum operating current of the detector; when most Large operating current is greater than 6A, rated operating current value is advisable to protect its

1.5 times. In close to the device should be clearly marked at its value.

4.2.6 Protective Performance Protective performance of the detector should meet the requirements of

3.2 in GB 23757-2009.

4.2.7 User's Guide Detectors should be the appropriate Chinese instruction manual and use the contents of the specification should meet the GB/T 9969 requirements.

4.3.1 General requirements

4.3.1.1 When the detector temperature parameters monitored area meet the criteria specified alarm condition, fire detectors should alarm signal output, lit fire Disaster warning indicator; multi-channel detector with an alarm shall indicate the channel, and keep to the reset; location-enabled detectors should be able to refer to It shows the alarm location information and upload information to said alarm fire alarm controller.

4.3.1.2 In the event of the following faults when the detector should be in the 100s fault output signal, fault indicator lit with multi-channel detection Shall indicate the faulty channels, the detector should have a positioning function can indicate the fault location information and upload the information to the fire reported the failure Police controllers, standard alarm length greater than 3m fiber grating linear heat detectors and linear multi-point type heat fire detectors should be able to Temperature sensing element indicating failure of parts or partitions.

a) air tube type linear heat detectors when the pipeline leak;

b) detector line in open or short condition;

c) fiber grating linear heat detectors and linear multi-point type heat detectors in either a temperature sensing fault conditions;

d) having a multi-channel detector, and in each channel disconnected.

4.3.1.3 having a multi-channel detector, the detector faulty channel should not affect the normal work of non-faulty channels, fire alarm detector letter Number of output and instructions shall take precedence over fault signal output and indication.

4.3.1.4 detector when the power supply fails, the fault signal to be output in the 100s, the output interface performance should be consistent with the maker known Claim.

4.3.2 Additional requirements for detection alarm detectors

4.3.2.1 detector indication should meet the following requirements.

a) fire detector alarm, should be able to issue a fire alarm sound and light signals, use the text information display fire site, fire reported record Police Time (Day timing error should not exceed 30s), and should be kept to a reset; B) When a fire detector should be a dedicated LED (device), the detector is in alarm state fire, fire lamp (device) should light detection The fire alarm signal should be able to eliminate the manual, when a new fire alarm occurs, the acoustic signal should start again;

c) The detector should be able to display alarm parts, having multi-channel detector should be able to display information for each channel; a plurality of channels of information is not When can be displayed simultaneously, you can automatically or manually switch the query display and manual operation priority;

d) the current alarm information inquiry, should not affect the detector's fire alarm function;

e) alarm information recorded at least 999, and after probe power can be maintained at least 14d;

f) failure of the detector should be able to send out a fire alarm signal and a clear distinction between the failure sound and light signal indicating the type of fault and / Or location, should be kept to an optical signal fault troubleshooting, fault detector acoustic signal should be able to eliminate the manual, when a new fault has occurred When raw, acoustic signal should start again.

4.3.2.2 detector self-test function shall meet the following requirements.

a) The detector should have to manually check the sound, light indication function;

b) during the execution of the self-test, the output contacts are controlled by the state detector should not be changed;

c) detector self-test function should not affect the normal operation of the detector.

4.3.2.3 Reset the detector should only be achieved by means of the use of special tools or password.

4.3.3 Factory setting The factory setting of the detector should only be through the use of special tools or means of password change.

4.4.1 DC-powered detectors

4.4.1.1 detectors should be given priority, DC24V, ceiling (rated operating voltage within the maker said the rated working voltage range Not less than 110% of the normal operating voltage, rated working voltage limit is not higher than 85% of the normal operating voltage), should be able to work properly.

4.4.1.2 overcurrent detector power due measures.

4.4.1.3 External insulation resistance of live terminal and frame insulation requirements between not less than 20MOmega.

4.4.2 AC-powered detectors

4.4.2.1 detectors within the manufacturer's trademark, said the upper limit of the rated working voltage (rated voltage is not less than the normal operating voltage 110% of the rated working voltage limit is not higher than 85% of the normal operating voltage), should be able to work properly.

4.4.2.2 detectors should have the main and backup power conversion. When the main power fails, you should be able to automatically switch to standby power; when the main power is restored Complex, should be able to automatically switch to the main power supply; main and backup power conversion detector should not send out a fire alarm signal.

4.4.2.3 standby power detector at the discharge end voltage to the charging condition 24h, its capacity should be able to ensure normal monitoring state detector After working 8h, working in an alarm state conditions 30min.

4.4.2.4 detectors should have power over-current protection measures, and should indicate the following breakdown.

a) mains failure or undervoltage;

b) to alternate between the power supply and standby power charger charging cable break, short-circuit;

c) between the standby power supply and its load cable break, short circuit or powered by a separate standby power supply when the voltage is insufficient to protect the detector normal work.

4.4.2.5 External insulation resistance of live terminal and frame insulation requirements between not less than 20MOmega, the main power supply input and the chassis between The insulation resistance shall be not less than 50MOmega.

4.4.2.6 between the main power supply terminals and the chassis should be able to withstand a frequency of 50 × (1 ± 0.01) Hz, RMS 1250 × (1 ± 0.1) V for AC voltage, which lasted the test, the electrical strength 60s ± 5s during the test, no flashover or breakdown; test after power is turned on, the probe Should be able to work properly.

4.5 standard temperature operation performance

4.5.1 fixed temperature detectors

4.5.1.1 at 25 °C ± 2 °C initial temperature (the temperature of the sample for action set no lower than 138 °C, the starting temperature of 50 °C ± 2 °C), Airflow rate of 0.8m/s ± 0.1m/s conditions, the detector sensitive components in any period of the standard alarm length to 1 °C/min liters Temperature heating rate, will be moderate and fixed temperature detectors set operating temperature and non-temperature operation shall comply with the provisions in Table 1. Table 1 given moderate fixed temperature detector without setting operation temperature and operating temperature requirements in degrees Celsius Operating temperature detector temperature probe does not move NOTE. The product allows the use of ambient temperature does not exceed the maximum temperature does not operate.

4.5.1.2 error detector operating temperature should not exceed 10% of the set value, and not more than the minimum error of the maker said. Number

4.5.1.3 detector having a plurality of temperature alarm points, operating temperature and non-temperature operation of the detector is set to be given in Table