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GB 30439.9-2014: Safety requirements for industrial automation products -- Part 9: Safety requirements for digit display instrument
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Safety requirements for industrial automation products -- Part 9: Safety requirements for digit display instrument
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Basic data
| Standard ID | GB 30439.9-2014 (GB30439.9-2014) |
| Description (Translated English) | Safety requirements for industrial automation products -- Part 9: Safety requirements for digit display instrument |
| Sector / Industry | National Standard |
| Classification of Chinese Standard | N10 |
| Classification of International Standard | 19.080; 25.040.01 |
| Word Count Estimation | 53,513 |
| Date of Issue | 7/24/2014 |
| Date of Implementation | 2/1/2015 |
| Quoted Standard | GB/T 1633-2000; GB/T 3098.1-2010; GB/T 3098.3-2000; GB/T 4207-2003; GB 4208-2008; GB 4793.1-2007; GB/T 5465.2-2008; GB/T 7354-2003; GB 8898-2001; GB/T 11020-2005; GB/T 11021-2007; GB/T 12113-2003; GB 14048.1-2006; GB 14048.3-2008; GB/T 16842-2008; GB/T 16 |
| 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 digital display instrument panel-mounted anti-shock, anti-mechanical hazards, mechanical shock and impact resistance to prevent the spread of flame, safety equipment requirements and heat-resistant temperature limits. This stan |
GB 30439.9-2014: Safety requirements for industrial automation products -- Part 9: Safety requirements for digit display instrument
---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.
Safety requirements for industrial automation products.Part 9. Safety requirements for digit display instrument
ICS 19.080; 25.040.01
N10
National Standards of People's Republic of China
Safety requirements for industrial automation products
Part 9. Digital display instrument safety requirements
Part 9. Safetyrequirementsfordigitdisplayinstrument
Issued on. 2014-07-24
2015-02-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Introduction Ⅴ
1 Scope 1
2 Normative references 1
3 Terms and definitions 2
4 Test 6
4.1 Overview 6
4.2 Test procedure 6
4.3 reference test conditions 6
Test under a single fault condition 4.4 7
5 Marking and documentation 9
5.1 mark 9
5.2 11 warning signs
5.3 durability of the marking 11
5.4 Document 11
6 anti-shock 12
6.1 Overview 12
6.2 ACCESSIBLE parts of the judgment 13
6.3 ACCESSIBLE parts of allowable limits 13
Protection Under normal conditions 14 6.4
Protection under a single fault condition 15 6.5
6.6 connection with an external circuit 18
6.7 clearances and creepage distances 18
6.8 Dielectric strength test program 20
6.9 protection against electric shock structural requirements 23
Disconnect the power supply 24 6.10
7 against mechanical hazard 25
8 resistant to mechanical shock and impact 25
8.1 Overview 25
8.2 housing rigid test 25
9 to prevent the spread of flame 25
9.1 Overview 25
9.2 to eliminate or reduce sources of ignition within 26 DRO
9.3 in the event of fire, flame control in the digital display 27
9.4 energy-limited circuit 28
9.5 overcurrent protection 29
10 Equipment temperature limits and heat 30
10.1 pairs of anti-burn surface temperature limit 30
10.2 winding temperature of 30
10.3 Other temperature measurements 30
Implementation 10.4 Temperature Test 31
10.5 Heat 31
11 Anti-hazardous liquid 32
12 radiation (including laser source), acoustic and ultrasonic pressure 32
13 pairs of gas release, explosion and implosion protection 32
32 14 Component
14.1 Overview 32
14.2 high integrity components 33
14.3 Printed Circuit Board 33
14.4 used as transient overvoltage limiting device circuits and components 33
34 14.5 Power Transformers
34 14.6 Fuse Holders
Appendix A (normative) touch current measurement circuit 35
Appendix B (normative) Standard test finger 38
Annex C (normative) clearances and creepage distance measurement 40
Annex D (normative) therebetween insulation requirements specified parts 43
Reduce Appendix E (normative) Pollution degree 46
Annex F (normative) Routine tests 47
Figure 1 under normal conditions, charging and capacity limits for single fault condition 14
Figure 2 under single fault conditions can instantaneously reach maximum short duration voltage [see 6.3.2a)] 15
Figure 3 illustrates a flowchart prevent flame spread requirements 26
Figure 4 Bezel 28
Zone 1) the provisions of the housing bottom 5 structure to meet 9.3.2b) 28
6 Ball pressure test apparatus 32
Figure A.1 frequency is less than or equal to 1MHz AC and DC measurement circuit 35
Figure A.2 frequency is less than or equal to sinusoidal AC and DC measurement circuit 36 100Hz
Figure A.3 electrical burns current measurement circuit 36
Figure A.4 moist touch current measurement circuit 37
Figure B.1 rigid test finger (GB/T 16842-2008 trial with 11) 38
Figure B.2 articulated test finger (GB/T 16842-2008 trial with B) 39
Figure C.1 clearances and creepage distance measurement method of example 40
Figure D.1a) ~ d) hazardous live circuits under normal conditions do not exceed the limits 6.3.2 ACCESSIBLE parts and having an external terminal circuit
Between 43 protection
Figure D.1e) ~ h) hazardous live circuits under normal conditions 6.3.2 does not exceed the limit and having an external terminal
Other protection circuits 44 between the
Figure D.2a) and b) are not accessible to other parts connected to accessible parts hazardous live internal circuit protection 44
ACCESSIBLE terminals The following figure D.2c) and d) normal conditions does not exceed the limit of the secondary circuit 6.3.2 on primary
Protection of hazardous live circuit 44
D.3 two external hazardous live circuit diagram accessible terminal 45 protection
Table 1 Symbol 10
Table 2 assembly screws tightening torque 17
Table 3 MAINS circuit clearances and creepage distances 19
Table 4 by the clearances grid power supply circuit 20
Table 5 creepage distance 21
Table 6 Basic insulation test voltage of 23
Table 7 bottom of the housing 27 to allow openings
Table 8 limits the maximum available current value 29
Table 9 overcurrent protective device 29
Table 10 surface temperature limits under normal conditions 30
Table 11 winding insulation material 30
Table 12 impulse withstand voltage 33
Table 13 output impedance of the pulse generator 33
Table C.1 Pollution Registration Form 40
Table E.1 through the use of additional protection allows to reduce environmental pollution level inside 46
Foreword
All technical content in this Part of GB 30439 is mandatory.
GB 30439 "Industrial Automation product safety requirements" is divided into 18 sections as follows.
--- Part 1. General;
--- Part 2. pressure/differential pressure transmitter safety requirements;
--- Part 3. Temperature Transmitter safety requirements;
--- Part 4. Safety requirements for the control valve;
--- Part 5. flowmeter safety requirements;
--- Part 6. solenoid valve safety requirements;
--- Part 7. loop controller safety requirements;
--- Part 8. Safety requirements for electric actuators;
--- Part 9. Digital display instrument safety requirements;
--- Part 10. recording instrument safety requirements;
--- Part 11. Programmable Controller safety requirements;
--- Part 12. Echo Ranging (TOF) Level Meter safety requirements;
--- Part 13. magnetostrictive level gauge safety requirements;
--- Part 14. Power meter safety requirements;
--- Part 15. industrial process measurement and control signal distribution, isolation, conversion, alarm processing unit safety requirements;
--- Part 16. Safety requirements for differential pressure flow meter;
--- Part 17. Safety requirements for the ultrasonic flowmeter;
--- Part 18. Safety requirements for pressure gauge auxiliary device.
This section of Part 9 GB 30439.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This part is proposed by China Machinery Industry Federation.
This part of the National Industrial Process Measurement and Control Standardization Technical Committee (SAC/TC124), the national measurement, control and laboratory electric
Device Security Standardization Technical Committee (SAC/TC338) centralized.
This section is drafted. Fujian on the Run Precision Instrument Co., Ltd., Zhejiang control Automation Instrumentation Co., Southwest University, Mechanical Industry
Instrumentation Technology and Economy Institute, Nanjing Phoenix Electric Co., Ltd., Zhongshan City Automation Co., Ltd., Shanghai Automation
Instrument Research Institute, Ningxia Yinxing Energy shares Wuzhong Instrument Company, Shanghai Automation Instrumentation Co., Ltd., Xiamen Yu electric automation technology have
Ltd., Fujian on the Run Precision Instrument Co., Ltd.
The main drafters of this section. Ge Jian, Ding Yun, Zhou Xuelian, Cheng Yuk, Wang Dezhong, Yan Yan, Cheung Po Chun, Zhou Songming, Lijia Jia, Wang Yong, Li Wei,
Wangzhu Ping, Zhou Ting, Zhou Yu, Ge Jian, Mei Ke, Wang Jianhua, Liu Xiaojing, Wang Yumin.
Safety requirements for industrial automation products
Part 9. Digital display instrument safety requirements
1 Scope
GB This section 30439 specifies the digital display instrument panel-mounted anti-shock, anti-mechanical hazards, mechanical shock and impact-resistant, fire prevention
Flame spread, safety equipment requirements and heat-resistant temperature limits.
This section does not include security features and device-independent, performance or other characteristics, the effectiveness of transport packaging, electromagnetic compatibility (EMC) to
Requirements, functional safety, environmental protection measures for the explosion, maintenance (repair), maintenance (repair) personnel protection.
This section applies to industrial process signal panel mounted digital display instrument (hereinafter referred to as DRO).
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.
GB/T 1633-2000 thermoplastics Vicat softening temperature (VST) Determination (idtISO 306.1994)
GB/T 3098.1-2010 Mechanical properties of fasteners Bolts, screws and studs (ISO 898-1.2009, MOD)
GB/T 3098.3-2000 Mechanical properties of fasteners set screws (idtISO 898-5.1998)
GB/T 4207-2003 solid insulating materials under moist conditions index tracking of the measuring method and the proof tracking index compared
(IEC 60112. 1979, IDT)
GB 4208-2008 housing protection (IP Code) (IEC 60529.2001, IDT)
GB 4793.1-2007 measurement, control and laboratory safety requirements for electrical equipment Part 1. General requirements (IEC 61010-
1.2001, IDT)
GB/T 5465.2-2008 Graphical symbols for electrical equipment - Part 2. Graphical symbols (IEC 60417DB.2007, IDT)
GB/T 7354-2003 partial discharge measurements (IEC 60270.2000, IDT)
GB 8898-2001 Audio, video and similar electronic apparatus - Safety requirements (IEC 60065.1998, EQV)
Flammability Test Method Listing GB/T 11020-2005 solid non-metallic materials when exposed to flame sources (IEC 60707.1999,
IDT)
GB/T 11021-2007 heat resistance, electrical insulation rating (IEC 60085.2004, IDT)
GB/T 12113-2003 touch current and protective conductor current measurement (IEC 60990-1.1999, IDT)
GB 14048.1-2006 Low-voltage switchgear and control equipment Part 1. General (IEC 60947-1.2001, MOD)
GB 14048.3-2008 Low-voltage switchgear and control equipment - Part 3. Switches, disconnectors, switch and fuse group
Combined electrical (IEC 60947-3.2005, IDT)
GB/T 16842-2008 protective shell for inspection and test equipment used with (IEC 61032-1.1997, IDT)
GB/T 16927 (all parts) high-voltage test techniques [IEC 60060 (all parts)]
GB/T 16935.3-2005 within low-voltage systems Insulation coordination for equipment - Part 3. Using the coating, potting or molding for antifouling
Protection (IEC 60664-3.2003, IDT)
IEC 60027 (all parts), electrical technology text symbols (Lettersymbolstobeusedinelectricaltechnology)
3 Terms and Definitions
GB 4793.1-2007 and define the following terms and definitions apply to this document. For ease of use, repeat the following list
The GB 4793.1-2007 certain terms and definitions.
Unless otherwise specified, "voltage" value and "current" refers to the value of RMS AC, DC, or synthetic voltage or current.
Category 3.1 equipment and devices
3.1.1
Stationary equipment fixedequipment
Fixed to the support member or an additional fixture at a specific location.
[GB 4793.1-2007, the definition 3.1.1]
3.1.2
PERMANENTLY CONNECTED EQUIPMENT permanentlyconnectedequipment
Only permanent connection method and tools to disconnect the electrical power supply connected equipment.
3.2 Parts and Accessories
3.2.1
Terminal terminal
A component of the apparatus (device) connected to the outer conductor provided.
[GB 4793.1-2007, the definition 3.2.1]
Note. The terminal can contain one or more contacts, so that the term also includes sockets, connectors and the like.
3.2.2
Functional ground terminal functionalearthterminal
To a point directly measuring or control circuit, or directly with a shield portion is electrically connected, but also reservations
To be used for any function other than safety purposes purpose a ground terminal.
Note. The measuring equipment, the terminal is often referred to as measuring ground terminal.
3.2.3
Protective Conductor Terminal protectiveconductorterminal
For security purposes and conductive parts of equipment are connected, but also with a predetermined external terminal connected to protective earthing system.
3.2.4
Housing enclosure
Protect the unit against certain external influences and prevent parts from any direct contact with the direction provided.
[GB 4793.1-2007, the definition 3.2.4]
3.2.5
Baffle barrier
Prevent parts from any direction normal close direct contact provided.
[GB 4793.1-2007, the definition 3.2.5]
Note. The housing and bezel provides flame spread protection [see 9.2.1b)].
3.3 Electrical values
3.3.1
Rated (value) rated (value)
Usually by the manufacturer for the components, apparatus, or device reaches a given magnitude of working status. [IEV151-04-03]
3.3.2
Rating rating
A set of ratings and working conditions.
[GB 4793.1-2007, the definition 3.3.2]
3.3.3
Operating voltage workingvoltage
When the device is supplied at rated voltage, the insulation can occur any particular maximum RMS AC voltage or DC voltage values.
Note 1. The instantaneous value is not considered.
Note 2. The open circuit conditions and normal operating conditions are to be considered.
3.4 Test
3.4.1
Type test typetest
For a particular design, in order to prove that the design and structure of this standard can meet one or more of the requirements of one or more devices
Taiwan sample (or device components) tests carried out.
Note. This is IEV151-04-15 definition expanded to include both the design requirements and structural requirements.
[GB 4793.1-2007, the definition 3.4.1]
3.4.2
Routine tests routinetest
After fabrication or manufacture to determine the means (equipment) meets a criterion and for each separate device (device) test
(See Appendix F).
[GB 4793.1-2007, the definition 3.4.2]
3.5 Security Terminology
3.5.1
(Parts) palpable accessible (ofapart)
6.2 When prescribed use standard test finger or test pin to the touch.
3.5.2
Dangerous hazard
Potential source of harm.
3.5.3
Hazardous live hazardouslive
Electric shock or electrical burn make it under normal condition or single fault condition.
Note. The value of the normal conditions apply, see 6.3.1, for under a single fault condition is considered to be a higher number apply, see 6.3.2.
3.5.4
Power supply mains
It is designed to make about the device connected thereto need for equipment to provide electricity for the purpose of low voltage power supply system.
Note. Some of the measurement circuit can measure the power grid and for purposes connected with.
3.5.5
The power supply circuit mainscircuit
Intended to be connected to the power grid, providing power for the device circuitry.
Note. The measuring circuit and the use of induction powered from the mains power supply circuit circuit does not belong to the grid power supply circuit.
3.5.6
Protective impedance protectiveimpedance
A combination of components, component or components of the basic insulation and current limiting or pressure-limiting device when it is connected to ACCESSIBLE conductive parts and dangerous
Between live parts when the risk degree of protection impedance, structure and reliability under normal conditions and single fault conditions provided to achieve this standard
Requirements.
3.5.7
Protection connection protectivebonding
To make electrical ACCESSIBLE conductive parts or protective screen and for the external protection conductor is connected with electrical continuity and having carried
connection.
3.5.8
Normal use normaluse
Operation according to instructions or intended use by the apparent instructions, including standby.
NOTE. In most cases, the normal use also refers to normal conditions, because the use of manual warns users not to use the device under abnormal conditions.
3.5.9
Normal conditions normalcondition
All protective measures to prevent dangerous conditions are intact.
3.5.10
Single fault condition singlefaultcondition
Protective measures to prevent the risk of a failure condition occurs or is likely to cause some dangerous and a fault condition.
Note. If a single fault condition will inevitably lead to another single fault conditions, such a two failures are considered a single fault
condition.
3.5.11
Operator operator
According to the intended use of the device to operate the equipment man.
Note. Operators should for this purpose receive appropriate training.
3.5.12
Responsible responsiblebody
Responsible for the maintenance and use of equipment or operating personnel to ensure adequate training for individuals or organizations.
3.5.13
Transient overvoltage transientovervoltage
Duration of only a few milliseconds or less over-voltage, usually with a strong damping of oscillations or shocks.
3.5.14
Transient Overvoltage temporaryovervoltage
For a relatively long time power frequency overvoltage.
3.6 Insulation
3.6.1
Basic insulation basicinsulation
Whose failure can cause a shock hazard insulation.
[GB 4793.1-2007, the definition 3.6.1]
Note. The basic function of insulation can be used for insulation purposes.
3.6.2
Additional insulation supplementaryinsulation
Independent insulation applied in addition to basic insulation, in order to ensure that when once the basic insulation failure can still prevent electric shock.
[GB 4793.1-2007, the definition 3.6.2]
3.6.3
Double insulation doubleinsulation
Constituted by the basic insulation and supplementary insulation.
[GB 4793.1-2007, the definition 3.6.3]
3.6.4
Reinforced insulation reinforcedinsulation
Its ability to provide protection against electric shock is not less than double insulation insulation, it can not as a separate image into several layers of additional insulation or basic insulation
Insulation test line configuration.
[GB 4793.1-2007, the definition 3.6.4]
3.6.5
Pollution polution
It will lead dielectric strength or surface resistivity reduced solid, liquid or gaseous (ionized gas) additional foreign substances.
3.6.6
Pollution degree polutiondegree
To assess the level of contamination and the separation distance specified below microenvironment.
3.6.6.1
Pollution Level 1 polutiondegree1
No pollution or only dry non-conductive pollution, the pollution has no adverse effect.
3.6.6.2
Pollution Level 2 polutiondegree2
Normally only non-conductive pollution, but occasionally due to the cohesive effect and short conductive.
3.6.6.3
Pollution Level 3 polutiondegree3
Conductive pollution or dry non-conductive pollution due to the unifying role and become conductive.
Note. In this condition, the device is usually to prevent exposure to direct sunlight, rain, strong wind pressure, but it need not control the temperature or humidity.
3.6.6.4
Pollution degree 4 polutiondegree4
A conductive dust, rain or other wet conditions induced persisting conductive.
3.6.7
Clearance clearance
The shortest distance between two conductive parts in the air.
3.6.8
Creepage distance creepagedistance
The shortest distance between two conductive parts along the surface of insulating material.
[GB 4793.1-2007, the definition 3.6.8]
The definition of the relevant product 3.7
3.7.1
Installed instruments
Fixedly mounted on the dashboard or instrument plane use.
4 Test
4.1 Overview
In this section all tests are type tests on a sample control instruments or components carried out. The only purpose of these tests is
To verify the design and construction to ensure compliance.
4.2 Test procedure
Subject to the provisions of this section, the test sequence may be optionally substituted. After each test should be carefully tested to check the DRO. in case
Test results have doubts, doubts if the test reverse the order of the trial whether any of the preceding pass true, the front of these tests should
When repeated. If the number of tests will damage the meter under fault conditions, these tests can be placed under the benchmark test after test conditions.
4.3 reference test conditions
4.3.1 Environmental Conditions
Subject to the provisions of this section, the test sites should have the following conditions.
a) Temperature. 15 ℃ ~ 35 ℃;
b) Relative humidity. not exceed 75%;
c) Atmospheric pressure. 86kPa ~ 106kPa;
d) no frost, condensation, water seepage, rain and sunshine.
4.3.2 DRO state
Unless otherwise specified, each test should be assembled for the most in the normal use of the digital form, and the provisions in 4.3.2.1 ~ 4.3.2.8
Conducted under unfavorable combination of conditions.
DRO by the manufacturer should provide instructions for installation.
4.3.2.1 DRO position
DRO is in any position of normal use, and any ventilation unobstructed.
4.3.2.2 Accessories
Recommendations provided by the manufacturer or, annexes and operators with the DRO use with interchangeable parts should be connected or not.
4.3.2.3 lid and removable parts
Without tools or removal of the lid parts should be removed or not removed.
4.3.2.4 MAINS
Shall comply with the following requirements.
a) between 90% to 110% of the power supply should be in digital form can be set to any of the rated supply voltage, or if the DRO
To adapt to the provisions of the greater voltage fluctuations, the supply voltage should be any voltage fluctuations within the range of up to;
b) frequency should any nominal frequency;
c) AC, DC DRO should be connected to an AC or DC power;
d) the use of DC or single-phase power DRO shall respectively normal polarity and the opposite polarity;
e) In addition to the provisions of the DRO is used only for non-grounded power grid, the reference test of a power pole should be at ground potential or connected
Near ground potential.
4.3.2.5 Input and output voltage
Input and output voltages, including floating voltages but excluding the MAINS voltage included, it should be adjusted to any of the rated voltage range
He voltage.
4.3.2.6 ground terminal
For protective earthing terminal, if any, it should be connected to earth. Functional ground terminal should be grounded or ungrounded.
4.3.2.7 connection
DRO its intended use should be connected or not.
4.3.2.8 Output
For providing an electrical output of several significant table.
Working conditions a) DRO should be able to provide the rated output power of the rated load;
b) to any output, rated load impedance should be connected or not.
4.4 Test under single fault conditions
4.4.1 Overview
It should be according to the following requirements.
a) Check the circuit diagram of the DRO and can usually determine whether the fault condition can cause dangerous and therefore whether it should be implemented;
b) In addition to proof of a specific fault conditions likely to cause danger, the test shall be made by the fault, or select Check
Verify compliance provisions of an alternative method to replace the fault test [see 9.1b) and c)];
c) DRO should work under the reference test conditions (see 4.3) the most unfavorable combination of conditions, for different faults, these combined conditions
You can vary the combination of these conditions should be recorded during each test.
4.4.2 Fault conditions imposed
Fault conditions 4.4.2.1 ~ 4.4.2.2 should include provisions for fault conditions. These fault conditions can only be applied to one and should press
Sequentially applied in any convenient order, can not be applied more than one fault at the same time, the results unless it is applied to a fault caused by a fault.
After each applied once the fault condition, the DRO should be able to apply the test 4.4.4.
4.4.2.1 Impedance protection
a) If the impedance protection is a combination of components to form, it should be shorted or open each component, choose one of the more disadvantaged.
b) If the impedance protection by basic insulation and current limiting pressure limiting device or a combination of the composition, the basic insulation and current limiting or pressure-limiting devices
Both of which should bear a single fault condition, once applied to a fault condition. Basic insulation should be short-circuited, while the limit
Flow or pressure-limiting devices should be shorted or open, choose one of the more disadvantaged.
c) The protective earthing terminal, if any, should be connected to earth. Functional ground terminal should be grounded or ungrounded.
Protection from high impedance component integrity components of the composition need not be shorted or open (see 6.5.3 and 14.2).
4.4.2.2 Power Transformers
Power transformer secondary winding should be in accordance with the provisions of 4.4.2.2.1 will be short-circuited, according to the provisions of 4.4.2.2.2 to overload.
In one test damaged ...
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