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GB 14287.4-2014 English PDF

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GB 14287.4-2014: Electrical fire monitoring system -- Part 4: Arcing fault detectors
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GB 14287.4-2014English579 Add to Cart 5 days [Need to translate] Electrical fire monitoring system -- Part 4: Arcing fault detectors Valid GB 14287.4-2014

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Standard similar to GB 14287.4-2014

GB 15322.1   GB 14287.1   GB 14287.3   GB/T 45839   GB 20517   GB 16808   

Basic data

Standard ID GB 14287.4-2014 (GB14287.4-2014)
Description (Translated English) Electrical fire monitoring system -- Part 4: Arcing fault detectors
Sector / Industry National Standard
Classification of Chinese Standard C81
Classification of International Standard 13.220.20
Word Count Estimation 25,232
Date of Issue 6/24/2014
Date of Implementation 6/1/2015
Quoted Standard GB 4706.1; GB/T 9969; GB 12978; GB 16838; GB/T 17626.2; GB/T 17626.3; GB/T 17626.4; GB/T 17626.5; GB/T 17626.6; GB 23757-2009
Regulation (derived from) National Standards Bulletin No. 14 of 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 arc fault detector, classification, requirements, testing, inspection rules, signs and instructions. This section applies to industrial and civil buildings and 10 kW electric arc fault detector following l

GB 14287.4-2014: Electrical fire monitoring system -- Part 4: Arcing fault detectors

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Electrical fire monitoring system.Part 4. Arcing fault detectors ICS 13.220.20 C81 National Standards of People's Republic of China Electrical fire monitoring system Part 4. arc fault detector Issued on. 2014-06-24 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

Introduction Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions 4 Category 1 5 Requirement 2 6 Test 6 7 Inspection rules 18 8 Marking 18 9 Owner's Manual 19 Appendix A (informative) Typical arc fault waveform 20

Foreword

GB this Part 5,7,8 Chapter 14287 are 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; --- Part 4. arc fault detector; This section GB of Section 414 287. This section drafted in accordance with GB/T 1.1-2009 given rules. 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 in part by the Ministry of Public Security is responsible for drafting the Shenyang Fire Research Institute, Ningbo Xi Yu Electronic Development Co., Ltd., Shanghai Hua Su Electrical Technology Co., Secretary, Shenyang Swan Electric Co., Ltd., Fujian Junhao Electronics Co., Ltd. participated in the drafting. The main drafters of this section. Ding Hongjun, Gao Wei, Zhang Ying Cong, Li Xiaobai, Cao, Liu Changan, Qi Zi Bo, Hu Shaoying, Huang Wujie. Electrical fire monitoring system Part 4. arc fault detector

1 Scope

GB This section 14287 specifies the terms and definitions arc fault detector, classification, requirements, testing, inspection rules, signs and use Instructions. This section applies install arc fault detector used in industrial and civil buildings 10kW and below electrical circuits. other Apparatus for use in arc fault detector for an electrical fire monitoring, as well as under other environmental arc fault detector with special requirements, Except as otherwise provided by the special requirements of the relevant standards, are also applicable to this section.

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 Safety of household and similar electrical appliances. General requirements GB/T 9969 General Instructions industrial products GB 12978 fire electronic products inspection rules 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 23757-2009 fire protection requirements for electronic products

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Arc fault arcingfault Since the electrical lines or equipment old and damaged insulation, loose electrical connections, air humidity, voltage and current causes such a sharp increase in air Gas breakdown caused by free gas discharge phenomenon. 3.2 Arc fault detector arcingfaultdetector For detecting protected from electrical lines arc fault detector. Category 4 Arc fault detector (hereinafter referred to as the detector) according to work can be divided into. a) non-independent; b) stand-alone.

5 Requirements

5.1 General Chapter 6 of the detector should be tested, test results should meet the corresponding requirements of Chapter 5. 5.2 appearance requirements No corrosion detector surface, coating loss and blistering, no scratches, cracks, burrs and other mechanical damage, no loose fastening parts. 5.3 Basic requirements 5.3.1 use AC220V/50Hz AC power supply detector, power line input terminals should be located. 5.3.2 The detector should have a red light alarm acknowledgment. When a monitored area parameters meet the alarm condition, the detector alarm confirmation light should point Bright and kept to be reset. Confirm its lamp is lit in front of 3m at no more than 500lx illuminance environmental conditions, should be clearly visible. 5.3.3 Detector When connecting other auxiliary devices (such as remote confirmation lights, control relays, etc.), and the auxiliary device is connected between the line and disconnection Short circuit should not affect the normal operation of the detector. 5.3.4 Detector factory settings should not be easily changed. When the need to change the need to use special means (such as special tools or password), No It should not destroy its seals. 5.3.5 If the performance of the detector alarm can be set the scene on the detector or monitoring device connected thereto, shall meet the following Claim. a) When the manufacturer declares that all settings meet the requirements of this section, any probe under the conditions set by this section shall meet Requirements, and for the field should be set only by special tools, password, or separate probe and the base means to achieve; b) When the manufacturer declares that a setting does not satisfy the requirements of this section, which should be set only by special tools, means of achieving password, And this should be clearly indicated on the detector provided relevant documents or can not meet the requirements of this section. 5.3.6 protective properties of the detector should meet the requirements of GB 23757-2009 in 3.2.1. 5.4 Alarm Properties 5.4.1 When the 14 and more than half an arc fault is detected the line cycle occurs within 1s, the detector should send an alarm signal in the 30s Number, alarm LED lights; non-independent detector alarm indication should be kept to the connected electrical fire monitoring device reset, freestanding Detector alarm indication should be kept to a manual reset. 5.4.2 When the probe line and arc fault occurred nine the following half-cycle is within 1s, the detector should be visual and audible alarm signal And control signals, but it may take other forms of prompts. 5.4.3 The detector shall be provided with a set of control output when an alarm signal, the control output should be in operation within 1s. 5.4.4 false alarm detector test, alarm and control signals should not be issued. 5.4.5 detector inhibition test process loads should alarm and control signals in the 30s. 5.5 Repeatability Repeat 3 times measuring detector alarm time, power 1d and then measured three times the alarm time, the alarm time should meet the requirements of 5.4. During energized, the detector should alarm and fault signals. 5.6 voltage fluctuation performance Use AC220V/50Hz AC power supply of the detectors in the power supply voltage of AC187V and AC242V conditions, should To work properly, the alarm time should meet the requirements of 5.4. 5.7 Insulation resistance Insulation resistance detector external charging terminals and the chassis between not less than 20MΩ; 220V/50Hz AC power input and Insulation resistance value between the cabinet should not be less than 50MΩ. Leakage current 5.8 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. 5.9 Electric strength Between use AC220V/50Hz AC power supply probe power plug (or power terminals) and the chassis should be able to withstand frequent Rate of 50Hz, valid values AC1250V voltage test lasted 1min the electric strength. During the test, the detector should strike occurs Wear phenomenon; After the test, the detector performance shall comply with the requirements of 5.4. 5.10 Climate tolerance The detector should be able to withstand the test specified in Table 1 under the climate conditions. During the test, the detector should be kept normal surveillance state; After the test, it should be no damage to the coating and corrosion detector alarm time should meet the requirements of 5.4. Climate conditions in Table 1 running test requirements 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 5.11 Mechanical environmental resistance 5.11.1 Test run Detectors should be able to withstand the test at the table under the second mechanical environmental conditions. During the test, it should maintain a normal monitoring state; test After, there should be no mechanical damage and tighten loose parts, the detector alarm time should meet the requirements of 5.4. Table 2 Run test mechanical environmental conditions Name of Test Test Parameters Test Conditions Operating status Impact test Peak acceleration m/s2 Adhesive red time ms Impact direction 100-20m (quality m≤4.75kg time) 0 (mass m > 4.75kg time) Normal monitoring state Crash Test Hammerhead speed m/s 1.5 ± 0.125 Collision kinetic energy 1.9 ± 0.1 The number of collisions 1 Normal monitoring state 5.11.2 endurance test Detectors should be able to withstand the trials Table 3 under specified mechanical environmental conditions. During the test, it should maintain a normal monitoring state; test After, there should be no mechanical damage and tighten loose parts, the detector alarm time should meet the requirements of 5.4. Table 3 endurance test mechanical environmental conditions Name of Test Test Parameters Test Conditions Operating status Vibration test (sinusoidal) (durable) Frequency Range Hz 10 ~ 150 ~ 10 Acceleration m/s2 Sweep rate oct/min Number of axes 3 Each axis sweep frequency 20 No power 5.11.3 EMC The detector should be able to withstand the electromagnetic compatibility tests in Table 4 requirements. During the test, it should maintain a normal monitoring state; After the test, the detector Should be able to work properly, the alarm time should meet the requirements of 5.4. Table 4 Electromagnetic compatibility test conditions require Name of Test Test Parameters Test Conditions Operating status RFEMS test Field strength V/m Frequency Range MHz 1 to 1000 Scan rate 10 octave/s ≤1.5 × 10-3 Modulation amplitude 80% (1kHz, sine) Normal monitoring state RF conducted disturbances, induced field Immunity Test Frequency Range MHz 0.15 to 100 Voltage dBμV Modulation amplitude 80% (1kHz, sine) Normal monitoring state Electrostatic discharge immunity test Discharge voltage kV Discharge polarity Discharge interval The number of discharges per point Air discharge (insulator shell Sample) 8 Contact discharge (shell conductor and the sample Coupling plate) 6 Positive and negative ≥1 Normal monitoring state Electrical fast transient burst immunity test Transient Voltage kV AC power cord. 2 × (1 ± 0.1) Other cables. 1 × (1 ± 0.1) repeat frequency kHz 100 × (1 ± 0.2) Polarity Positive, Negative Each time 1min Normal monitoring state Surge (impact) immunity test Surge (impact) voltage kV Line - to. 1 × (1 ± 0.1) Polarity Positive, Negative Test times 5 Normal monitoring state 5.12 The main component performance 5.12.1 General requirements The main components of the detector should comply with relevant standards of styling products. 5.12.2 Indicators 5.12.2.1 Each application Chinese lights are clearly marked its features. 5.12.2.2 Indicator apply color logo, red indicates an alarm condition; yellow indicates a fault condition; Green indicates normal state. 5.12.2.3 lights in front of it at 3m, at no more than 500lx illuminance environmental conditions, should be clearly visible. 5.12.3 Display In no more than 500lx illuminance environmental conditions, the information should be displayed at the front of 0.8m, clearly readable 22.5 ° viewing angle range. 5.12.4 Sound Devices Under normal operating conditions, away from the front of the detector at 1m SPL (A-weighted) of not less than 70dB. 5.12.5 switches and buttons (button) Switches and buttons (button) operation should be flexible, reliable, feature clearly labeled. 5.12.6 Terminal 5.12.6.1 detector should be located terminals connected to the external lines. 5.12.6.2 terminals should be clearly marked its features. 5.12.6.3 strong power terminals should be located inside the detector or safe, reliable protection measures to protect. 5.12.6.4 electric and electronic terminals shall be provided separately.

6 Test

6.1 General 6.1.1 Test atmospheric conditions Except as otherwise stated in the relevant provisions, the various tests are carried out under the following atmospheric conditions. --- Temperature. 15 ℃ ~ 35 ℃; --- Humidity. 25% to 75%; --- Atmospheric pressure. 86kPa ~ 106kPa. 6.1.2 Test normal monitoring state When no special requirements in the relevant provisions, should ensure that the detector's operating voltage is rated voltage, and to remain active during the test Voltage stability. 6.1.3 Tolerance 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 Visual inspection Test sample (hereinafter referred to as the sample) before testing should be visually examined after the test can be carried out in line with the requirements of 5.2. 6.1.5 Sample 4 sets of detectors, and be numbered before the test. 6.1.6 Detector Installation Normal installation specimen shall be specified by the manufacturer to install. If the specification is given a variety of installation, the test should be used in the sample Installation work most unfavorable way. 6.1.7 Test Procedure According to the procedure specified in Table 5 were tested. Table 5 test procedure Sample No. No. No. Terms of pilot projects 6.1.4 Visual inspection 1 1-4 2 6.2 Basic Requirements Check 1-4 Alarm 3 6.3 Performance Test 1-4 1 4 6.4 Repeatability test 5 1 6.5 voltage fluctuation test 6 6.6 Insulation Resistance Test 1 1 7 6.7 leakage current test 1 8 6.8 Electric strength test 6.9 cryogenic 9 (running) Test 1 10 6.10 Damp heat (run) Test 2 11 6.11 Impact test 2 6.12 3 12 Crash Test 13 6.13 vibration (sinusoidal) (endurance) test 4 14 6.14 RFEMS Test 2 15 6.15 RF field immunity test conducted disturbances induced by 3 Electrostatic discharge immunity test 16 6.16 4 17 6.17 electrical fast transient burst immunity test 2 18 6.18 surge (impact) immunity test 3 6.2 Basic requirements for inspection 6.2.1 For use AC220V/50Hz AC power supply of samples, checking samples of the power input terminals. 6.2.2 The sample alarm, alarm checking samples to confirm lamp; manual reset sample, observe and record the working status of the sample. 6.2.3 Sample connection for auxiliary equipment, respectively, the auxiliary device connection line open and short circuits, observe and record the working status of the sample. 6.2.4 factory inspection sample setting status. 6.2.5 For a sample site alarm parameters can be set, check the setting status of the sample. 6.2.6 in accordance with the requirements of 4.2 in GB 23757-2009 carried enclosure class test. 6.3 Performance Test alarm 6.3.1 Sample connection 6.3.1.1 Performance test specimens shall be the actual alarm circuit or equivalent arc fault simulation generating means. The actual test circuit Test the connection diagram shown in Figure 1a), the arc fault simulation generator diagram shown in Figure 1b), the typical arc fault waveform see Figure Appendix A. Test connection a) actual circuit b) analog generating means

1 arc fault test circuit schematic diagram

6.3.1.2 arc fault simulation generating means technical indicators should meet the following requirements. a) a voltage output terminal. output voltage value AC220 × (1 ± 10%) V; current output ≤2A; signal bandwidth is not less than 20kHz. b) current output terminal. output voltage is AC20V ~ 60V; current output ≤60A. c) the maximum single working time. 5min. d) Power supply. AC220V. 6.3.2 arc fault test 6.3.2.1 Test procedure 6.3.2.1.1 The arc load conditions and the nature of the desired Table 6, the samples were tested. Table 6 arc fault test Arc arc path parallel nature series carbonized carbonized path parallel arc metal arc contact Load conditions power kV · A 4 Rated 3535 power Factor 1 0.7 0.3 0.7 1 0.3 1 0.7 1 0.7 1 0.7 1 0.7 Note. The power tolerance of ± 10%. 6.3.2.1.2 After the start of test equipment, if generated per second and up to nine of the following half-cycle arc fault lines or 14 and more than half Arc fault cycle, then this test is an effective test group, observe and record the state of the detector, and alarm recording time sample; if each test Number of seconds of arc generated when the condition is not satisfied, then the test is invalid in this group test should be repeated. Note. The arc duration not exceeding 0.42ms or current value does not exceed 5% of the rated current value is not as small arc arc statistics. 6.3.2.2 Test equipment and methods 6.3.2.2.1 Test series carbonized arc path 2, the two single-core copper conductor (2.5mm2) after the end of the hinge 2cm insulation removed, the wire insulation to retain overlapping portions 2mm ~ 4mm, with plastic insulation tape around the hinge portion 3 weeks to prepare a sample, the sample test access lines generated by the high-pressure device Set generates a high voltage insulation breakdown so that the overlapped portion is formed carbonized path, from the low voltage (AC220V) device on the line and load, thereby producing Arcing. Figure 2 tandem arc path carbonation test circuit schematic 6.3.2.2.2 carbonation path parallel arc tests 3, the two parallel single-core copper wire (2.5mm2) at an intermediate portion spaced 3mm incision after insulation with plastic insulating tape FIG. Wound incision site three weeks to prepare a sample, the sample test access lines, high voltage generated by the high voltage generator means causes insulation breakdown shaped cutout portion A carbonized path, by a low voltage (AC220V) device on the line and load power supply, resulting in an arc. Figure 3 parallel test circuit schematic carbonized arc path 6.3.2.2.3 parallel metallic contact arc tests As shown, at an angle to the horizontal blade 4 slow down in two parallel multi-core copper wire and placed in parallel (2.5mm2) wire core moment of contact arcing.

4 parallel metallic contact arcing test circuit schematic

6.3.3 Test False Alarm 6.3.3.1 The samples were as shown in Table 7 false alarm test equipment. Table 7 Test False Alarm No. Name Test Method for power operation mode Test time Under capacitor start motor 2200W load situation random start and stop 2 times 10 2 vacuum cleaner 1200W When turned on, so that by adjusting the speed control knob Vacuum cleaner from lowest to highest speed, then From highest to lowest reciprocate 5 times 3 cooker 2000W 1800W start at 10 and running gear 4 Microwave 1100W high fire up and running 10 5 Iron 1100W By adjusting the temperature control knob, Make contacts and breaking temperature 10 times Electronic variable speed hand drill 800W 6 So that the hand drill from the lowest speed in no-load condition To the highest, from highest to lowest and then 2 times reciprocally 7 with electronic ballasts for fluorescent lamps 36W25 cold state up and running 10 8 3 Cooling mode inverter air conditioner up and running 60 9 infrared disinfection cabinet 700W up and running 10 Composite load (including fixed-frequency electric ice Box with inductive ballast Fluorescent lights, computers, fixed-frequency air) Respectively, 120W, 60W2 lamp, 300W, Air conditioning and heating the way Each interval 5s activate a random electrical equipment 60 11 other necessary test equipment cf. numbers 1 to 10 Note 1. 1 = 2324W. Note 2. The power tolerance of ± 10%. 6.3.3.2 test equipment as shown in Figure 5 is connected in parallel anti-disturbance test, which is the power load 1000W resistive load. When the test Arc fault generated by adjusting the arc generator (11), when the generating lines up to 14 cycles per second and more than half of the failures Arc, this group test as a valid test, observe and record the state of the detector; if the number of arc per second produced by the test condition is not satisfied When this group test invalid test should be repeated. Figure 5 Parallel anti-disturbance test circuit schematic 6.3.4 load suppression test 6.3.4.1 Test procedure 6.3.4.1.1 Operation signal suppression Respectively, according to FIG. 6, FIG. 7 is connected to load test equipment inhibition test, in which the power of 1000W resistive load, the load shield Run the table and were selected under vacuum cleaner and heating mode at a maximum speed of 7 listed work work two fixed-frequency air; press Fig. 8 Connecting test equipment to load suppression test in which a resistive load power 1000W, shield and load operating mode selection Table lamp with electronic ballast 7 listed. Respectively, start the test load said shield, regulating arc generator (11 in FIG. Shown) to generate an arc fault. If 14 per second and generates more than half an arc fault circuit cycle, then this test is an effective test group was observed And record the detector status, and alarm recording time sample; when the number of the arc produced per second if the test condition is not satisfied, then this group Test invalid test should be repeated. Figure 6 Load Suppression Test 1 Figure 7 Load Suppression Test 2 8 Load Suppression Test 3 6.3.4.1.2 suppression capacitor filter The circuit of Figure 9 connecting test equipment, shielding the figure load is 1000W resistive load. 6.3.4.1.1 The method according to the occurrence of electrical Arc and test samples. FIG. 9 capacitor filter suppression test 6.3.4.1.3 line impedance suppression 10 a circuit diagram showing the test equipment is connected, the load is 1000W FIG resistive load. Arcing method in accordance with 6.3.4.1.1 And test samples. twenty one 10 line impedance inhibition test 6.3.4.2 Test Equipment An arc generating means 11, the carbon electrode of 6.4mm and a copper movable electrode includes a stationary diameter. test First move the copper electrode and carbon electrode so that good contact test, the circuit will turn on, start the load device, and then slowly adjust laterally movable electrode It with carbon sequestration, until arcing. 11 arc generating means 6.4 Repeatability test 6.4.1 Connect the sample and supporting monitoring equipment. 6.3, 6.4.2 provisions measured three times the alarm time, two measurements of time intervals of not less than 10min, but not more than 1h. last one After the measurement, the sample kept unchanged. 6.4.3 The sample uninterruptible power-1d, and then measuring the required 6.3 times the alarm time, two measurements of time intervals of not less than 10min, but not more than 1h. 6.5 voltage fluctuation test 6.5.1 The samples are arranged according to the normal job requirements. Adjustment test equipment, test equipment so that the output voltage is AC187V/50Hz, The output voltage is applied to the power input of the sample, power, observe the status of the sample. The method according to the provisions of 6.3 alarm performance Test, and alarm recording time sample. 6.5.2 The samples are arranged according to the normal job requirements. Adjustment test equipment, test equipment so that the output voltage is AC242V/50Hz, The output voltage is applied to the power input of the sample, power, observe the status of the sample. The method according to the provisions of 6.3 alarm performance Test, and alarm recording time sample. 6.6 Insulation resistance test 6.6.1 Test procedure By means of insulation resistance test were applied to 500V ± 50V DC voltage to the following section of the sample, continued 60s ± 5s, measuring The insulation resistance v...

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