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GB 14287.2-2014 English PDF

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GB 14287.2-2014: Electrical fire monitoring system -- Part 2: Residual current electrical fire monitoring detectors
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GB 14287.2: Evolution and historical versions

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GB 14287.2-2014English509 Add to Cart 4 days [Need to translate] Electrical fire monitoring system -- Part 2: Residual current electrical fire monitoring detectors Valid GB 14287.2-2014
GB 14287.2-2005English399 Add to Cart 3 days [Need to translate] Alarm system for electric fire prevention -- Part 2: Leakage current detectors for electric fire prevention Obsolete GB 14287.2-2005

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Basic data

Standard ID GB 14287.2-2014 (GB14287.2-2014)
Description (Translated English) Electrical fire monitoring system -- Part 2: Residual current electrical fire monitoring detectors
Sector / Industry National Standard
Classification of Chinese Standard C81
Classification of International Standard 13.220.20
Word Count Estimation 22,231
Date of Issue 7/24/2014
Date of Implementation 6/1/2015
Older Standard (superseded by this standard) GB 14287.2-2005
Quoted Standard GB 4706.1-2005; GB/T 9969; GB 12978; GB 14287.3; GB 16838; GB/T 17626.2; GB/T 17626.3; GB/T 17626.4; GB/T 17626.5; GB/T 17626.6; GB/T 17626.8; GB/T 17626.11; GB 23757
Regulation (derived from) National Standards Bulletin No. 19, 2014
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This standard specifies the terms and definitions residual current electric fire detectors, classification, requirements, testing, inspection rules, signs. This standard applies to electrical fire control system of residual current electric fire detectors

GB 14287.2-2014: Electrical fire monitoring system -- Part 2: Residual current electrical fire monitoring detectors


---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Electrical fire monitoring system.Part 2. Residual current electrical fire monitoring detectors ICS 13.220.20 C81 National Standards of People's Republic of China Replacing GB 14287.2-2005 Electrical fire monitoring system Part 2. residual current electric fire Monitoring detector Part 2. Residualcurrentelectricalfiremonitoringdetectors Issued on. 2014-07-24 2015-06-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Preface Ⅰ 1 Scope 1 2 Normative references 1 3 Terms and definitions 4 Category 2 5 Requirement 2 6 Test 7 7 Inspection rules 16 8 Marking 16 Appendix A (normative) Residual current transformer 17

Foreword

GB section 14287 Chapter 5, Chapter 7, Chapter 8 is mandatory, the rest are recommended. GB 14287 "electrical fire monitoring system" consists of the following components. --- Part 1. Electrical fire monitoring equipment; --- Part 2. residual current electric fire detectors; --- Part 3. temperature electrical fire detectors; This section GB Part of 214,287. This section drafted in accordance with GB/T 1.1-2009 given rules. This Part replaces GB 14287.2-2005 "electric fire monitoring systems - Part 2. residual current electric fire detection Device ", compared with GB 14287.2-2005 The main technical changes are as follows. --- Increased repeatability (see 6.5); --- Increasing the consistency test (see 6.6); --- Increasing the balance test (see 6.7); --- Increasing the impact of high current adaptive test (see 6.8); --- Increased leakage current test (see 6.10); --- Increased RFEMS test (see 6.12); --- Increased conducted disturbances induced RF field immunity test (see 6.13); --- Increased electrostatic discharge immunity test (see 6.14); --- Increased electrical fast transient burst immunity test (see 6.15); --- Increased surge (impact) immunity test (see 6.16); --- Increased voltage dips, short interruptions and voltage variations immunity tests (see 6.17); --- Increased frequency magnetic field immunity test (see 6.18); --- Increasing the voltage fluctuation test (see 6.19); --- Vibration (sinusoidal) (endurance) test modified to vibration (sinusoidal) (run) test (see 620, 2005 5.6.); --- Increasing the impact test (see 6.21); --- Canceled impact test (see 2005 edition 5.7). This section presents the People's Republic of China Ministry of Public Security. This part of the National Standardization Technical Committee on Fire fire detection and alarm Technical Committee (SAC/TC113/SC6) centralized. This section is responsible for drafting unit. Shenyang Fire Research Institute Ministry of Public Security. Participated in the drafting of this section. Shenyang Swan Electric Co., Ltd., Beijing Haibo Chi Heng Electric Fire Technology Co., Ltd., Shenyang Shen Tai Electric System Co., Ltd., Beijing Aerospace Chang Xing Technology Development Co., Ltd., Shanghai Electric Technology Co., Ltd. China places. The main drafters of this section. Ding Hongjun, Yang Bo, Kang Weidong, Zhang Ying Cong, with Rui Tao, Sun Zhen Hui, Yan Xiaoguang, Llewelyn, Xu Jiahua, Yuying Fei, Luan Jun, Cai Jun, Hu Shaoying. This part of the standard replaces the previous editions are. --- GB 14287-1993; --- GB 14287.2-2005. Electrical fire monitoring system Part 2. residual current electric fire Monitoring detector

1 Scope

GB This section 14287 specifies the terms and definitions residual current electric fire detectors, classification, requirements, testing, inspection Rules flag. This section applies to electrical fire control system of residual current electric fire detectors.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. Part 1 GB 4706.1-2005 Safety of household and similar electrical appliances. General requirements GB/T 9969 General Instructions industrial products GB 12978 fire electronic products inspection rules GB 14287.3 electrical fire control system - Part 3. The temperature electric fire detectors GB 16838 fire electronic products environment test methods and severities GB/T 17626.2 Electromagnetic compatibility Testing and measurement techniques - Electrostatic discharge immunity test GB/T 17626.3 electromagnetic compatibility test and measurement technology RFEMS test GB/T 17626.4 Electromagnetic compatibility Testing and measurement techniques - Electrical fast transient burst immunity test GB/T 17626.5 electromagnetic compatibility test and measurement technology surge (impact) immunity test GB/T 17626.6 Electromagnetic compatibility Testing and measurement techniques Immunity to conducted disturbances induced field GB/T 17626.8 Electromagnetic compatibility Testing and measurement techniques - Power frequency magnetic field immunity test GB/T 17626.11 Electromagnetic compatibility Testing and measurement techniques - Voltage dips, short interruptions and voltage variations immunity tests GB 23757 fire protection requirements for electronic products

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Residual current electric fire detectors residualcurrentelectricalfiremonitoringdetector Monitoring the protection of residual current circuit change detector. Usually the residual current sensor and the signal processing unit. 3.2 Detached residual current electric fire detectors independentresidualcurrentelectricalfiremonitoringdetector Independent probe of the protected line residual current value change concurrent sound and light signal detector. 3.3 Non-independent residual current electric fire detectors non-independentresidualcurrentelectricalfiremonito- ringdetector Can detect the protected value of residual current lines to the electrical fire monitoring device transmits information about the probe. 3.4 Multi-sensor combined electric fire detectors combinedmulti-sensingelectricalfiremonitoringdetector It can simultaneously monitor the protected line residual current value and temperature detectors. 3.5 Residual current sensor residualcurrentsensor Measuring the residual current protection circuit in the sensor changes, usually residual current transformer. 3.6 The signal processing unit signalprocessingunit Receives the measurement data remains current sensors, analyze the data processing unit. Category 4 4.1 residual current electric fire detectors (hereinafter referred to as the detector) according to work can be divided into. a) stand-alone; b) non-independent. 4.2 Detectors can be divided according to the number of sensors. a) single-cell type; b) Multi-sensor combined.

5 Requirements

5.1 General Detectors should be required to Chapter 6 of the test, the test results should be consistent with the corresponding requirements of Chapter 5. 5.2 Basic Functions 5.2.1 The detector shall be provided with working status indicator and alarm status indicators. 5.2.2 The detector should not have breaker function. 5.2.3 should be used stand-alone detector power AC power supply (AC220V/50Hz), the power line input terminals should be located. 5.2.4 When the protected line residual current alarm setpoint is reached, the detector should alarm signal within 30s, the alarm indicator lights, Non-independent detector alarm indication should be kept to the connected electrical fire monitoring device reset, stand-alone detector alarm indication should To maintain a manual reset. 5.2.5 Detector alarm value should be set between 20mA ~ 1000mA, alarm value within the set range, the difference between the alarm value and set value The absolute value should not exceed 5% of the set value; with real-time display the current value of the remaining functions of the detector display error should not exceed 5%. 5.2.6 non-independent detectors and external sensor connection line between the open or short circuit occurs, the probe should be electrically connected thereto Fire monitoring device transmits fault signal. 5.2.7 detector alarm setpoint can be set on the detector or electrical fire monitoring equipment connected to it, but it should only be through a dedicated worker With means, passwords, etc. for field settings. 5.2.8 has a modular multi-sensor temperature measurement function detector should also meet the requirements of GB 14287.3. 5.3 Monitoring alarm 5.3.1 alarm monitoring requirements apply only to stand-alone detectors. 5.3.2 detector alarm should be visual and audible alarm signals, and displays the remaining time of the current alarm (only applies to residual current detection ) And the sensor location; alarm signal can be manually removed, after the alarm signal is manually removed, silencers should be instructed when to have other alarm signal When the number of the input, the alarm signal should start again. 5.3.3 Under alarm conditions, the sound pressure level (A-weighted) in front of their audio devices should be greater than 1m at 70dB, less than 115dB. 5.3.4 using an external cable residual current sensor detector, the residual current sensor signal processing unit connected thereto disconnection between Or short-circuit, the detector should be able to emit sound in the 100s, the optical signal fault; fault alarm sound signal and sound signal should be a clear distinction; failure sound Signal should be able to eliminate manual; fault signal light should be kept to a fault condition recovery. 5.3.5 detector alarm signal shall take precedence over failure acoustic signal. 5.3.6 independent detectors can connect up to 4 sensors. 5.3.7 Alarm information should take precedence over fault information display, alarm condition, you should be able to manually query the existence of the fault information, alarm information and so Barrier and should not be displayed alternately. 5.3.8 The detector may be provided with a set of control output, the detector alarm, the control output should be in operation within 3s, the control output performance should meet Fit the manufacturer's specifications. 5.3.9 The detector should be able to manually check all lights and displays on its audio devices, panel function, the detector output during the self-control Should not be out of action. 5.4 Communication Function 5.4.1 non-independent probe should be capable of real-time residual current value and the fault signal is transmitted to the mating electrical fire monitoring equipment. 5.4.2 independent detectors should at least have a set of communication ports. 5.5 The main component performance 5.5.1 Indicator 5.5.1.1 indicator should be used Chinese clearly marked its features. 5.5.1.2 Application of LED color-coded red for alarm, yellow for fault, green indicates normal state. 5.5.1.3 In its lights at the front of 3m, in the light of not more than 500lx environmental conditions, should be clearly visible. 5.5.2 Monitor 5.5.2.1 detectors should be independent numeric or alphanumeric display information. 5.5.2.2 In 5lx ~ 500lx ambient light conditions, the information should be displayed in front of 22.5 ° viewing angle, 0.8m at readable. 5.5.3 Terminals 5.5.3.1 detectors should be set connection of the external cable, but the connection is not set up to monitor the line terminals. 5.5.3.2 Terminals shall be clearly marked its features. Terminals 5.5.3.3 strong power in the detector should be located inside or safe, reliable protection measures to protect. 5.5.3.4 electric and electronic terminals shall be provided separately. 5.5.4 Structure Through holes 5.5.4.1 detectors should enable the corresponding nominal current value through the normal conductor. 5.5.4.2 detector housing should be robust and reliable. 5.5.4.3 detectors should be fixed in a reliable manner. Residual current sensor and the signal processing unit connected to the line length of the detector should 5.5.4.4 within 3m. 5.5.5 residual current sensor Such as residual current measurement using current transformers shall comply with the requirements of Appendix A; the use of other measurement principle of the residual current sensor should be The manufacturer's requirements. 5.6 Protective Performance Protective performance of the detector should be consistent with the requirements of GB 23757. 5.7 Repeatability 6 times repeated measurements detector alarm value and the alarm time, the two measured time interval should not be less than 3min, each measuring probe The alarm value and the alarm time shall comply with the requirements of 5.2. 5.8 Consistency The five remaining current sensors and probes provided by the manufacturer are connected with the measurement sample alarm and alarm time should be consistent 5.2 requirements. 5.9 Balance Under the conditions shown in the circuit of Figure 2, according to the pore size of the residual current detector sensor, according to Table 1 Selection Test Guidelines line. Two through holes in the probe and the through-hole conductors WM axis parallel to, and farthest apart and in stationary conditions, tune Whole and keep the remaining 90% of the sample current alarm set value, the detector to not more than 6 °/s angular velocity about the axis of rotation through hole 360 °, the detector should remain normal during this monitoring state; two through holes in the detector and WM wires through the hole axis was 45 ° clip Angle, and is at the farthest distance and stationary conditions, the detector to not more than 6 °/s angular velocity about the axis of rotation through holes 360 °, probe During this period detector should maintain a normal monitoring state; After the test, the detector performance shall comply with the requirements of 5.2, 5.3. Note. The normal monitoring state detector means under normal power supply conditions, no failure alarm, self-test, etc. The state when the operation. Table 1 Main circuit Conductor Requirements Main circuit rated operating current In Test current Wire diameter mm Insulation thickness mm In≤63 63 4 0.5 63 \u003cIn≤100 100 6 1.0 100 \u003cIn≤315 315 10 1.5 315 \u003cIn≤630 630 14 2.0 630 \u003cIn≤1000 1000 20 2.0 1000 \u003cIn≤2000 2000 50 2.0 5.10 current shock adaptability In Figure 3 the circuit conditions, according to the provisions of Table 2 of the main circuit rated current value is applied corresponding to the transient inrush current, duration 0.2s, repeat the test interval 30s, a total of five times. During the test, the detector should be kept normal monitoring state; After the test, the detector performance should be consistent 5.2, 5.3 requirements. Table 2 the impact of current conditions in amperes Main circuit rated current value In the transient inrush current In≤100 1000 100 \u003cIn≤630 2000 630 \u003cIn≤2000 4000 5.11 Insulation resistance Detector external charging terminal and a power plug operating voltage greater than 50V, external charging terminals and the power plug and the shell between Insulation resistance under normal atmospheric conditions should be not less than 100MΩ. 5.12 leakage current Use AC220V/50Hz AC power supply of the detector at 1.06 times the rated voltage, the leakage current value should not exceed 0.5mA. 5.13 Electric strength Detector external charging terminal and a power plug operating voltage greater than 50V, and external power plug charging terminals should be able to withstand frequent Rate of 50Hz, 1250V rms voltage AC voltage, which lasted electric strength test of the 60s ± 5s. During the test, the detector is not Discharge or breakdown should occur (breakdown current less than 20mA); After the test, the performance of the detector should meet the requirements of 5.2, 5.3. 5.14 Electromagnetic compatibility The detector should be able to adapt to the testing requirements in Table 3 under specified conditions. During the test, you should maintain a normal monitoring state; After the test, sex Can comply with the requirements of 5.2, 5.3. Table 3 Electromagnetic Compatibility Test conditions Name of Test Test Parameters Test Conditions Operating status RFEMS test Field strength V/m Frequency Range MHz 80 to 1000 Scan rate 10oct/s ≤1.5 × 10-3 Modulation amplitude 80% (1kHz, sine) Normal monitoring state RF induction field conducting anti-harassment Interference Test Frequency Range MHz 0.15 to 80 Voltage dBμV Modulation amplitude 80% (1kHz, sine) Normal monitoring state Table 3 (Continued) Name of Test Test Parameters Test Conditions Operating status Electrostatic discharge immunity test Discharge voltage kV Air discharge (housing insulator). 8 Contact discharge (shell conductor). 6 Discharge Polarity Positive, Negative Discharge interval ≥1 Each discharge point 10 times Normal monitoring state Electrical Fast Transient Immunity Test Transient Voltage kV AC power cord. 2 × (1 ± 0.1) Other cables. 1 × (1 ± 0.1) repeat frequency kHz AC power cord. 2.5 × (1 ± 0.2) Other cable. 5 × (1 ± 0.2) Polarity Positive, Negative Each time 1min Normal monitoring state Surge (impact) immunity test Surge (impact) voltage kV AC power cord - Line. 1 × (1 ± 0.1) AC power cord - to. 2 × (1 ± 0.1) Other cable lines - to. 1 × (1 ± 0.1) Polarity Positive, Negative Test times 5 Normal monitoring state Voltage dips, short interruptions And voltage variations immunity tests duration 10 cycles (40% of the rated voltage of the power supply voltage) 1 cycle (power supply voltage of 0V) 10 trials Normal monitoring state Power frequency magnetic field immunity test Test Level 4 Magnetic field intensity A/m Normal monitoring state 5.15 voltage fluctuation Using 220V/50Hz AC power supply of the detectors in the power supply voltage of AC187V and AC242V normal conditions should be able to Work performance should meet the requirements of 5.2, 5.3. 5.16 Mechanical environmental resistance The detector should be able to withstand the trials live table 4 in the predetermined mechanical environmental conditions. During the test, it should maintain a normal monitoring state; After the test, there should be no mechanical damage and tighten loose parts, performance should meet the requirements of 5.2, 5.3. Table 4 Mechanical environmental test conditions Name of Test Test Parameters Test Conditions Operating status Vibration (sinusoidal) (run) test Loop frequency range Hz 10 to 150 Acceleration amplitude m/s2 0.981 Sweep rate oct/min Each axis sweep frequency 1 The vibration direction X, Y, Z Normal monitoring state Crash Test Collision energy 0.5 ± 0.04

3 number of collisions

Normal monitoring state 5.17 Climate tolerance Detectors should be able to withstand the test specified in Table 5 below lived climate conditions. During the test, the detector should be kept normal surveillance state State; After the test, should be no damage to the coating and corrosion performance should meet the requirements of 5.2, 5.3. Table 5 test climate conditions Name of Test Test Parameters Test Conditions Operating status Low temperature (running) test temperature -10 ± 3 duration Normal monitoring state Damp (run) test temperature 40 ± 2 Relative humidity 93 ± 3 duration Normal monitoring state 5.18 Instructions 5.18.1 detector should be the appropriate Chinese instructions. 5.18.2 Instructions shall comply with GB/T 9969 requirements, and consistent with the performance of the detector.

6 Test

6.1 Test Platform Table 6 Test procedure 6.1.1. Table 6 Test Procedure Terms of Reference number of pilot projects Numbering 1 6.1.5 Check √ √ √ √ before √b test 2 6.2 Basic function test √ √ √ √ √ 3 6.3 monitoring alarm function test a √ √ √ √ √ 4 6.4 Communication function tests √ √ √ √ √ 5 6.5 repeatability √ 6 6.6 conformance test √ 7 6.7 √ balance test 8 6.8 high current impulse aptitude test √ 9 6.9 Insulation resistance test √ 10 6.10 leakage current test √ 11 6.11 electric strength test √ 12 6.12 RFEMS test √ 13 6.13 RF field immunity test conducted disturbances induced √ 14 6.14 electrostatic discharge immunity test √ 15 6.15 electrical fast transient burst immunity test √ 16 6.16 surge (impact) immunity test √ 17 6.17 Voltage dips, short interruptions and voltage variations immunity tests √ 18 6.18 Power frequency magnetic field immunity test √ 19 6.19 voltage fluctuation test √ 20 6.20 vibration (sinusoidal) (run) test √ Crash Test √ 21 6.21 22 6.22 low temperature (operation) test √ 23 6.23 Damp heat (run) test √ a monitoring alarm test only applies to stand-alone detectors. b "√" indicates the test is carried out. 6.1.2 In addition to the relevant provisions otherwise stated, all tests are carried out under the following atmospheric conditions. --- Temperature. 15 ℃ ~ 35 ℃; --- Relative humidity. 25% to 75%; --- Atmospheric pressure. 86kPa ~ 106kPa. 6.1.3 In addition to the relevant provisions otherwise indicated, are the tolerance test data ± 5%; ambient condition parameters deviation should be consistent with GB 16838 Claim. 6.1.4 before the test, the manufacturer shall provide five probes as a test sample (hereinafter referred to as the sample), if the test required, should also be provided with its Sets of electrical fire monitoring equipment. 6.1.5 Detector before the test the following requirements shall be checked. a) visual inspection, and meet the following requirements. 1) surface without corrosion, coating loss and blistering, no scratches, cracks, burrs and other mechanical damage; 2) no loose fastening parts. b) according to the requirements of 5.5 of a sample inspection, the test can be carried out to meet the requirements. 6.2 Basic function test 6.2.1 Test procedure 6.2.1.1 The sample and test equipment as shown in Figure 1 is connected, regulated current source GR, ammeter A reading of less than a sample alarm setpoint 95%, 1min, to observe and record the sample work. Regulated current source GR, ammeter reading is not greater than 0.2 times per second trial Sample rate increase alarm set value, current readings recorded sample issue an alarm signal, the alarm set value of the sample. Explanation. GR --- Residual current generator; A --- meter; WR --- residual current conductor; TR --- detector; CA --- electrical fire monitoring equipment; TS1, TS2 --- signal input. Figure 1 a schematic view of the detector alarm performance test 6.2.1.2 regulated current source GR, so that the reading of the ammeter A 105% alarm set value of the sample, maintaining 60s, alarm recording sample time. 6.2.1.3 For a real-time display of the current value of the residual error of the sample, check the residual current value is displayed with the measured values. 6.2.1.4 for open and short circuits external cable fault residual current sensor sample is provided between the sensor and check faults letter Transfer case number. The setting of the alarm setpoint 6.2.1.5 checking the sample. 6.2.1.6 sample using residual current transformer, according to the requirements of Appendix A test of residual current transformer. 6.2.2 Test Equipment Residual current generator GR should be able to produce in the wire WR 50Hz, a variable alternating current is 0.02A ~ 1A, the minimum amount of change is not Greater than 1mA. A precision ammeter should be at least 0.5 pointer instrument, or a reading of 50mA when the basic error of not more than 0.5 mA digital instruments. 6.3 Monitoring alarm function test 6.3.1 Figure 1, the connection sample and test equipment, regulated current source GR, the sample alarm signal, observe the status of the sample. Measure the sound pressure level sound sample issue an alarm signal. Manually mute function, observe the status of the sample. Regulated current source GR, ammeter A zero reading, the sample manual reset, observe the status of the sample. 6.3.2 Under normal monitoring state of the sample, for the use of an external residual current sensor samples the external surplus and the current sensor The connection between the lines were open and short circuits, observe the status of the sample. Manually mute function, observe the status of the sample. The remaining electricity and external Flow sensor connection line between normal, observe the status of the sample. 6.3.3 Under normal monitoring state of the sample, check sample sound alarm signal acoustic fault signal priority. 6.3.4 both faults and alarm status information, view the sample information display case. The display can not show all Under the information, the manual search function to view a sample of the ...

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