GB/T 5169.2-2002 Fire hazard testing for electric and electronic products Part 2: Guidelines for fire hazard assessment General principles
Some standard content:
ICS 13. 220. 40
National Standard of the People's Republic of China
GB/T 5169. 2—2002/IEC 60695-1-1: 1999 replaces GB/T5169.2-1985
Fire hazard testing for electric and electronic products-Part 2:Guidance forassessing the fire hazard---General guidelines(IEC 60695-1-1:1999,Fire hazard testing—Part 1-1:Guidance forassessing the fire hazard of electrotechnical Products--General Guidelines, IDT)
2002-08-05 Issued
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
2003-04-01 Implementation
GB/T 5169.2--2002/1EC 60695-1-1: 1999GB/T5169.2 is the second part of the GB/T5169 series of standards "Fire hazard test for electric and electronic products". The parts of GB/T5169 that have been issued and implemented are: - GB/T5169.1---1997 Fire hazard testing for electric and electronic products Part 4, Fire test terminology
GB/T5169.2---2002 Fire hazard testing for neutron products Part 2, General principles for fire hazard assessment - GB/T 5169.3---1985
Fire hazard testing for electric and electronic products Technical requirements for fire hazard assessment of electronic components and guidelines for the formulation of test specifications
Fire hazard testing for electric and electronic products
GB/T 5169,5—1997 [
GR/T 5169. 6-~1585
Fire hazard testing for electric and electronic products
Part 2: Test methods Part 2: Test methods for poor contact of heaters used in flame containment tests
Fire hazard testing for electric and electronic products
-GB/T 5169.7—2001E
Test methods Diffusion and premixed flame test methods
-GB/T 5169. 8—2000
Fire hazard testing and assessment of electric and electronic products Test procedures Examples and interpretation of test results Comments on combustion characteristics and test methods
..-CB/T 5169. 9--1993
Fire hazard testing for electric and electronic products Guidelines for the formulation of technical requirements and test specifications for fire hazard assessment Guidelines for the use of preselected procedures
GB/T 5169. 10 1997
Fire hazard test for electric and electronic products
Test method Glow-wire test method General rules
GB/T5169.11-1997 Fire hazard test for electric and electronic products Glow-wire test and guidelines for finished products
Test method
GB/T 5169. 12---1999
Test method Glow-wire flammability test for materials Fire hazard test for electric and electronic products
GB/T 5169. 13--1999
Test method Glow-wire ignitability test for materials Differential fire hazard test for electric and electronic products
-GB/T 5169.14—2001
Fire hazard test for electric and electronic products
Flame and guidelines
---GB/7. 516.. 15 ---2001
【kW nominal premixed test flame
Test method
Fire hazard test for electrical and electronic products
500W nominal test flame and
Test force method
—GB/T 5169.16--2002
Electrical.1. Fire hazard test for electronic products
Part 16: 50W horizontal and vertical flame test method
-GB/T 5169.17—2002 Fire hazard testing for electric and electronic products Part 17: 500W flame test method
This part is equivalent to IEC60695-1-1:1999 Fire hazard testing Part 1-1: General principles for fire hazard assessment of electric and electronic products (English version), but with minor editorial modifications in accordance with the provisions of 4.2b and 5.2 of GB/T20000.2-2001 "Guidelines for standardization work Part 2: Testing using international standards" The judgment word from the judgment diagram to the action in the process of this part is "no" in IEC60695-1-1, which may be wrong. It is changed to "yes" in this standard.
Appendix A and Appendix B of this part are both informative appendices. This part is proposed by the China Electrical Equipment Industry Association. This part is under the jurisdiction of the National Technical Committee for Environmental Technology Standardization of Electrical Neutron Products. This part was drafted by Guangzhou Electrical Science Research Institute at its own expense. The main drafters of this part are Xie Jianhua and Chen Ling. This part was first published in 1985. This revision is the first revision. GB/T5169.2--2002/IEC60695- 1-1.1999
Any circuit needs to consider the risk of fire. For this risk, the task of circuit and equipment design and material selection is to reduce the possibility of fire even in the event of foreseeable abnormal use, abnormal operation or failure. The primary goal is to prevent the ignition of live parts. If the fire is ignited, it is best to control the fire within the casing of the electrical and electronic product. If the surface of the electrical and electronic product is in contact with an external fire source, it is required to ensure that these surfaces will not contribute to the spread of the fire to the surrounding adjacent building materials or building structures. 1 Scope
GB/T 5169.2—2002/IEC 60695-1-1:1999 Fire hazard testing for electric and electronic products
Part 2: Guidelines for fire hazard assessment
This part of GB/T169 specifies the guidelines for fire hazard assessment of electric and electronic products (see Chapter 4) and the guidelines for the development of fire hazard test methods that are directly dangerous to people, animals and property (see Chapter 5). The products referred to in this part refer to materials, components or complete end-use products.
GB/T5169 II. Fire hazard testing for electric and electronic products\The standard is provided for use as a guide by various standardization technical committees. At the same time, attention should be paid to the relevant rules of IEC Guide 104, and to the role of the various committees with safety guidance functions and safety group functions. One of the tasks of the standardization technical committee is to use these basic safety publications wherever applicable when compiling its own publications.
2 Normative references
The following documents are The clauses become clauses of this part through reference in this part of GB/F5169. For any dated referenced document, all subsequent amendments (excluding errata) or revisions are not applicable to this part. Parties to an agreement based on this part are encouraged to investigate whether the latest versions of these documents can be used. For any undated referenced document, the latest version shall apply to this part GB/T5169.1—1997 Fire hazard testing for electric and electronic products Part 4: Fire test techniques (idtIEC60695-4;1993)
1S0/IEC Guide 52:1990 Compilation of terms and definitions related to fire IEC Guide 104:1997 Preparation of safety publications and convenient use of basic safety publications and group safety publications IEC Guide 109:1995 Guide for the preparation of environmental content in standards for electric and electronic products 3 Techniques and definitions
The following terms and definitions apply to this part of GB/T 5169. 3.1
Fire hazard
The potential for fire to injure life and/or damage property3.2
Fire risk
The probability of fire.
Note: Risk is expressed as a probability, which has the following two meanings: a) the frequency of expected occurrence of undesirable events under given technical operations or technical conditions, and b) the extent of damage that can be expected after the event occurs. 4 Fire hazard definition
4.1 Overview
It is important to understand and adhere to the difference between "fire hazard" and "fire risk". The first priority in hazard assessment is to minimize the risk of fire caused by the use of electricity in the product. In the event of a fire, the fire should be limited to the extent that it spreads. In addition, to a lesser extent, it should be considered as an important issue that certain external events may cause fire in the environment, but the deliberate misuse of electronic products should generally be ignored.
The heat release and opacity of the smoke in the combustion products, the corrosiveness and the ability to work under fire conditions should also be considered, all of which are related to the ignition and spread of fire. In some cases, the emitted gases may also be explosive. In fact, some electronic products such as large enclosures, insulated cables and insulated conduits may cover the surface and decorative materials of some buildings, or pass through firewalls. In these cases, when the electronic products come into contact with external ignition sources, they may be exposed to the fire. When exposed to fire, their contribution to the fire hazard must be compared with that of building materials or buildings lacking electrical and electronic products in order to evaluate these electrical and electronic products. After a detailed review of all the various hazards associated with fire, the final product standard should include a series of tests or individual tests that deal with specified special hazards.
4.2 Conducting a fire hazard assessment
4.2.1 Overview of the various elements of fire hazard testing
The fire hazard of an electrical and electronic product depends on the characteristics of the product, its maintenance conditions, and its use environment, including the number and type of people exposed to a fire caused by the product, the value of property, and the extent of damage to the property. Therefore, for a specific product, the fire hazard assessment procedure should describe the characteristics of the product, its operating conditions, and its use environment. 4.2.2 Basic steps
The basic steps to be followed in conducting a fire hazard assessment are: n) Define the scope and background material: the former includes the types of electrical and electronic products involved, and the latter includes the places and methods of use of these products (see 4.2.2.1);
b) Confirm the most important assessment options (see 4.2.2.2);) Select the judgment criteria to be used (see 4.2.2.3); d) Analyze the test results (see 4.2.2.4). 4.2.2.1 Define the scope and background material
The first step is to clearly define the fire hazard to be conducted. The types of electrical and electronic products to be assessed, the similarities and differences between these products and their uses, and the various parameters of the fire hazard assessment process can be determined. This can be done by answering the following questions:) Scope of electrical and electronic products
Determine the definition of the product to be assessed. Is the product described very accurately, so that it is completely certain that the product is within this scope, and whether it can be described by the applicable national standard; Is the description too broad, so that other products that can replace the product to be assessed can also be included; if it involves a given product, whether the scope includes the product. h) Usage description
Is the electrical and electronic product in continuous or intermittent operation? Is the product under supervision or unattended during operation? Is the ambient temperature controlled?
Due to the interaction between the electrical and electronic product and other objects in the environment, please explain the role of the product's location in generating or delaying a fire:
Is the product always in a closed space or in an open room? The number of people and their capabilities using the product;
How close are the exposed people or key equipment to the fire source? c) Check the specified scope and background materials
Use the formula to answer the above questions to write the product's trial instructions and its usage, and then you can check the product list and use the procedure given in Appendix A, i.e. the flow chart. Check the trial instructions, some of which can be selected as part of the scope and background materials. 4.2.2.2 Confirm the fire conditions of important relevance
The fire cycle is a detailed description of the various combustion states of a real fire from before ignition to after combustion is completed. There are often more than one fire condition that can cause an electrical or electronic product to be caught in a fire. In principle, it can be assumed that the product plays a different role in the ignition hazard of each fire condition. Therefore, a separate hazard assessment is required for each important fire condition identified. GB/T 5169.2-2002/IEC 60695-1-1:1999 Whether the focus of the assessment is a product or a system, the most important fire characteristic will usually be; or specify the combustion state that causes the product to be caught in a fire or consider the time when the product will cause the most dangerous consequences. a) Electrical and electronic products caught in a fire
For electrical and electronic products, knowledge of the ignition source is of primary importance. If the product itself is the ignition source, the conditions that can cause combustion should be analyzed in detail based on the electrical operating state (see Table 1). Is it a short circuit (this situation is rare), local overheating or global overheating, how long the electrical fault lasted before ignition, and for each fire condition, the details of the fire should be accurately described (including some gases that may accumulate in the enclosed space). If the electrical and electronic product itself is not an ignition source, then explain when and how it is prone to get involved in a fire: · Is the product the first item to be ignited · The product may be an important fuel source even if it is not the first item to be ignited; Is the product a potential cause of the spread of the fire. If one of these situations is considered to be the most worrying, the test means that this ignition performance characteristic is the most important, such as the ability of the product to quickly cause a major hazard, the number of products or the state of the hazard after the fire is extinguished during the fire, and then. Use this type of judgment, determine the test method or calculation procedure, and measure the contribution of the product to the fire hazard during the fire stage. h) Several issues related to fire
This topic is not only applicable to electrical and electronic products, but also to other objects that may participate in the ignition and development of fire in the environment. The purpose of clarifying the questions is to illustrate the characteristics of various aspects of fire hazards (see flow chart 2, 2A~2 in Appendix A): ... - Possibility of becoming a non-combustion source:
- — Flammability: wwW.bzxz.Net
- Rate of flame spread;
-· Glowing, smoldering, melting
· Maximum heat release rate, combustion, total heat release: Mass loss rate, that is, the generation rate of combustion products; - Smoke opacity: ||t t||-Corrosiveness of combustion products;
General description of toxic (irritant, intoxicating) substances produced: rate of development, total toxic effect: -…·Maintenance of various functions (such as structural integrity, service continuity, response) under fire conditions: -No matter the size, the quantity of different types of products,) Use fire conditions to determine key parameters
A test method or calculation procedure requires many specifications or input values. For example, a test of the heat release rate of combustion products requires the specification of the type of ignition (such as small-scale ignition), the level of associated heat flux and the requirement for controlling the oxygen concentration level in the combustion atmosphere. Where the product is not the first item to be ignited, the combustible materials near the product are important factors in determining the thermal state of the product to which it is exposed
Each specification and input value required by the test method or calculation procedure should be determined based on the selected fire characteristics, which may require the use of relevant fire statistics and the opinions of certain experts using literature data. After completing these steps, the fire hazard assessment researcher needs to determine the appropriate measurement methods and calculation procedures that can characterize the expected hazard. 4.2.2.3 Selection of the judgment criteria to be used The purpose of this step is to select a method of calculating the risk that will provide the correct technical information with which it is possible to estimate and determine the extent of the fire hazard caused by the product. The actual damage to people and property is always the most important issue for the fire hazard assessment. However, if it can be shown that simpler procedures will produce more accurate conclusions, it is not necessary to measure the damage directly. a) Direct loss of life and property
If the contribution of the product to the fire hazard can be expressed in terms of specific terms, this is of course the most ideal, but as we all know, it is extremely difficult to do this because it is extremely rare for residents or equipment in buildings to be able to quantitatively predict the consequences of fire.
b) Direct method of characterizing fire hazards
It is possible to establish a relationship between the expected (calculated) product parameters and certain characteristics of the fire hazard. For example, the heat release efficiency of the product determines the temperature of the room, which affects the operation of the equipment and (or) continued occupancy.The smoke release rate of a product may affect the time it takes for an occupant to escape. In this way, a numerical relationship between the fire hazard and the product parameters is established so that changes in the hazard level can be tracked and the reasons for the performance changes can be found.
c) This comparison method
It may be possible to suggest certain relationships between the performance of the tested product and the reference values, even if these relationships cannot be expressed quantitatively. For example, a cable that is known to release heat can be considered to have a known heat capacity, as long as the temperature rises relatively slowly, even if the exact relationship is not known. Another method of measuring the hazard is to compare the heat release rate of the product with a reference value. 4.2.2.4 Analysis of test results
In this clause, the fire hazard assessment procedure will be determined, that is, the hazard level to be used and how the measurement results are calculated. At the same time, several additional technical issues for the analysis of test results are also raised: a) When assessing fire hazard, it is advisable to specify the calculation procedure to be used when comparing the overall fire hazard between products or when comparing with a baseline. This procedure may be a calculation formula for one of several overall hazard measures. In such cases, a scientific rationale for the formula is required. The procedure may be a set of decision rules, for example: a product is a good product only if it is better than other products in all risk scenarios. However, in the special case of only two products, this rule may not be sufficient to provide a clear comparison. If more than one fire scenario is used, the procedure used to calculate the overall fire hazard must be specified. The procedure may be a formula or a set of rules. For example, if the relative probability of the occurrence of the fire scenario can be specified, as in a fire hazard assessment, then the procedure is the basis for the calculation of the overall fire hazard based on the several fire scenarios. If the hazard is not to be expressed directly in terms of death, injury or monetary loss, guidance should be provided on other units and measurement methods (i.e. escape time, speed of flame spread, size of fire, etc.). The assessment should specify all the steps required to achieve the safety requirements, or specify pass/fail criteria that can be determined by the person responsible. All of the above points are related to the overall fire hazard assessment and the role that the electrical and electronic products play within the scope of the assessment. 5 Fire Hazard Tests 5.1 Overview Any kind of energy transfer, distribution, storage and use has the potential to cause fire in most buildings. The most common causes of fire are overheating and flying, and the incidence of fire depends on the type of materials used in the construction of the system. Equipment used in the electrical and electronic fields releases heat during operation, and in some cases has sparks and arcs. If these issues are considered in the initial design stage and subsequently during installation, use and maintenance, then these potential risks will not develop into dangerous conditions. Some hazardous situations that are not caused by the use of electrical and electronic equipment are indeed related to overheating. Such factors must also be addressed in the overall risk assessment.
Contrary to commonly held belief, most electrical fires are not caused by short circuits, but by a combination of conditions, including several external non-electrical energy sources (see Table 1).
These conditions may include improper installation, use or maintenance, for example, short-term or prolonged overload operation, operation not under conditions specified by the manufacturer or contractor, poor heat dissipation, blocked ventilation systems, etc. 5.2 Assessment of risk
The data that may be used in the assessment of fire risk may be any of the following: GB/T 5169.2—2002/IEC 60695-1-1:1999a) tests or results based on the application of small-scale test methods or large-scale test plans; b) characteristic quantities or statistical data from historical fires; c) documented expert opinion.
These data may be used directly as a measure of risk or as input data to a calculation procedure that produces a final risk assessment. 5.3 Types of fire hazard tests
If it can be done, the finished product test is usually the most reliable test method, because this test method usually accurately reproduces various situations that actually occur. When formulating technical requirements and test specifications for fire protection and electrical and electronic products, it is necessary to distinguish the differences between the various tests given below.
5.3.1 Fire simulation test
This type of test checks the resistance of electrical and electronic products to fire. The purpose is to represent the actual use of the product as much as possible. The simulated product use conditions are very close to the actual use conditions of the product (including foreseeable abnormal use or failure). The design of the test procedure is inevitably related to the actual risk. Therefore, this type of test is only used to evaluate certain aspects of the fire hazard related to the use of the product. When the design of the test procedure is changed or the use conditions are different from the conditions simulated in the test, the test results of this type of test may no longer be valid.
5.3.2 Fire Tests
These tests are used to assess the ability of a product or part to maintain various performance characteristics for a specified period of time under specified conditions of exposure to fire.
These tests are also used to provide data on the performance and operation of a product or final assembly under specific conditions of heat exposure. Recent studies have shown that in order to relate the results of such tests to the characteristics of actual fire conditions, very careful consideration needs to be given to the comparison of test conditions with actual fire conditions and the possible effects of uncontrolled variables such as the environment in which the product is placed. 5.3.3 Fire reaction tests
These tests examine the reaction of a standard specimen to fire under specified conditions. In most cases, they provide performance data related to the combustion conditions and are used for comparative evaluation, such as flammability, ignitability, flame spread rate, smoke density, combustion products and heat release rate. The data provided by this type of combustion test do not usually represent the specific conditions that the test specimen may encounter. When used to simulate the conditions that materials and parts will encounter when testing the entire product, combustion characteristics tests can be quite useful. However, the reaction of the test specimen to fire may be very different from the reaction of the finished product to fire due to differences in environment. 5.3.4 Basic performance tests
These tests are used to ensure that when measuring the physical or chemical properties of the material, information is given that is at least approximately specified in the technical 1. and is independent of the test method. Such properties include net calorific value (heat of combustion), thermal conductivity, melting point, heat of vaporization, and other properties such as flash point, ignition point and auto-ignition temperature.
According to the heat and mass exchange theory, the combustion state of a real fire is determined by many such properties. The size of a single property will only be related to the fire risk or fire hazard of a system. However, after the fire engineer has a solid technical foundation, the fire safety range can be assessed using the test results of this type. 5.4 Development of technical requirements and test specifications
When developing technical requirements and test specifications for fire hazard tests of electrical and electronic products, the construction technical committee follows the following procedures. If a standardization technical committee with a specific task has not yet developed a fire test specification, or needs to develop or modify a fire test method, it is recommended to work closely with this technical committee to do this work. Procedure:
) Review some existing test procedures and recommended test procedures developed for similar purposes, and consider their applicability and limitations.
b) Collect as much background information as possible related to the test fire situation, and consider the corresponding applicability and importance of the existing test procedures.
c) If an existing test procedure seems to be applicable, check the clauses of the test procedure against the following points. GB/T 5169.2—2002/1EC 60695-1-1:1999 - Environmental conditions: In practice, simplification is required, but the environmental conditions finally adopted should be as closely related to the simulated environment as possible.
Feasibility check: The validity of the test data is related to the installation and use of the product, and also to the connection between the product and other products.
Discrimination: Check its sensitivity, reproducibility and repeatability against the characteristics of the relevant product and test sequence! The presentation of the test results should be fully objective in easy-to-understand terms, parameters and units to describe the given test results, and avoid vague, subjective and abstract terms. d) If a new test procedure is to be developed, the above basic characteristics shall be specified, with particular emphasis on the purpose of the test, the limitations of the test, the purpose of the test data and ease of operation. e) Establish acceptance criteria for the flame retardancy and flame spread resistance of the tested product. d) Investigate the recommended test procedures and study their ability to meet the test requirements, formulate test method standards, including relevant information such as their scope of application, areas of inapplicability and certain reservations, and information on the use of test results. Whenever possible, the recommended test procedure shall be mentioned in the recommendation. Table 1 Common ignition phenomena of electrical and electronic products Phenomenon!
) Wire overload:
h) Connection defect (bad connection),
Secondary response
) At the beginning,Protection device\does not operate: (except for special protection objects). After a period of instability, the protection device may operate: G) leakage current (insulation damage and heat); abnormal band
Note, some products are in normal: mountain) components, internal parts or related systems (such as ventilation) loss) humidity gradually rises, sometimes very slowly; heat is generated during operation near the product,
electric sparks and
madness, some products are in normal
) mechanical deformation leads to failure of electrical contacts or insulation structure: premature thermal aging
Near the case, the heat and discharge are collected, and the ignition forms a fire:
C) the accumulation and diffusion of flammable gases in the air can cause fire or explosion, especially in gaseous equipment. a) Direct contact between live parts at different positions (terminals loose, conductors loose, conductive foreign objects entering, etc.; b) Some components gradually deteriorate due to changes in insulation resistance; c) Sudden failure of components or internal parts; b) Internal reasons (some components of the on-off switch gradually deteriorate and sparks enter; or accidental failure of internal parts; h) The temperature of a local area rises significantly after a period of condensation; c) It may emit light, smoke, and flammable gases; d) Various hot substances are released.
a) The protective device will definitely act,
b) It may emit light, flammable gas and flames + the risk of over-ignition in an explosive atmosphere is considerable! ) The surrounding components or gases may ignite 1) Any of the above phenomena may cause mechanical deformation and structural changes, which may lead to the other two events. 2) The causes listed in the table are the most avoided situations, and the order of arrangement has nothing to do with importance and occurrence rate. 3) The protective device can be temperature type, mechanical type, electrical type or electrical type. Table 2: Terms used in this standard for electric and electronic products only Equivalent terms Material is a volatile raw material or a basic product that cannot be used normally and is in a form suitable for use as a semi-processed product or glass product 1 Material (or substance group, substance group, etc.): 1sd nrodust
mixture of substances
or chemical substances)
·Dynamic spare parts
materials with different shapes
used to perform specific
temponent
kinetic energy
use
to complete a complex
task|||multiple devices are designed
to be interconnected and interact with each other to ensure all
functional combinations required for a given
purpose
Spart-part unit
L'onstituent
Aeressnzies
Insiallation
Silicon oxide
Metal or plastic film
Metal wire, glass cloth
Epoxy glass with high temperature resistance
Laminate
Insulation tube
Strictly control the vertical cup
Magnetic field wrinkle
Printed circuit board
Microtun circuit
Glass dielectric capacitor
Electromagnet
Wireless telephone
Contactor
Inside the building and the electrical
wiring system
Transformed from one state to|| tt||Another state of being. A change in shape, state or property may be affected by chemical, thermal or mechanical changes. Changes in shape, state or property may be affected by combination of operations and: either manual or automatic operation. In extremely rare cases, a component may be a part. An assembly may consist of multiple subassemblies, each of which may consist of multiple components. Note that sample, prototype and specimen should be terms used specifically to describe the type of test and should not contain the meaning of a definite type or natural state of the test piece. GH/T5169.22002/1EC60695-1-1:1999 To specify the product specifications and usage conditions or to establish a test product (see 4.2, 2.1) A test product is consistent with the description of the situation. Another product should be carefully selected. Whether the test product is different from the products of the previously checked people. Test products that have not been studied in detail. Appendix A (Informative Appendix) Process by whether the test product should include storage and delivery. |These products are within the scope of
Product Description·K
Consideration
In the specification
Use environment and usage conditions
Flowchart 1 Specification and usage of electrical and electronic products (see 4.2.2.1) Ignition resistance
Flame combustion
Long test
Fire melting
Strength test
Input to absolute
Hazard standard
Fire resistance
Fire victim
Ignition resistance!
Evaluation of ignition properties
fire start/fire spread
and/or heat
smoke and combustion products
Other electrical and electronic products
Safety performance
Go to 4.2.2.2
Chapter 5
What role does the product play in a fire
Toxicity and corrosiveness test of combustion products
GB/T 5169.2-2002/IEC 60695-1-1. 1999 Fire Sources
Evaluation of Fire as a Tide Inducing Product
Test
Fire Spread Test
Flowchart 2 describes the fire situation (4.2.2.2)
b) May emit light, flammable gases and flames + considerable risk of over-ignition in explosive atmospheres! ) Surrounding components or gases may ignite 1) Any of the above phenomena may cause mechanical deformation and structural changes, which may lead to the other two events. 2) The causes listed in the table are the most avoided situations, and the order of arrangement has nothing to do with importance and frequency of occurrence. 3) The protective device can be of temperature, mechanical, electrical or electrical type. Table 2: Terms used in this standard for electric and electronic products only Equivalent terms Material is a volatile raw material or a basic product that cannot be used normally and is in a form suitable for use as a semi-processed product or glass product 1 Material (or substance group, substance group, etc.): 1sd nrodust
mixture of substances
or chemical substances)
·Dynamic spare parts
materials with different shapes
used to perform specific
temponent
kinetic energy
use
to complete a complex
task|||multiple devices are designed
to be interconnected and interact with each other to ensure all
functional combinations required for a given
purpose
Spart-part unit
L'onstituent
Aeressnzies
Insiallation
Silicon oxide
Metal or plastic film
Metal wire, glass cloth
Epoxy glass with high temperature resistance
Laminate
Insulation tube
Strictly control the vertical cup
Magnetic field wrinkle
Printed circuit board
Microtun circuit
Glass dielectric capacitor
Electromagnet
Wireless telephone
Contactor
Inside the building and the electrical
wiring system
Transformed from one state to|| tt||Another state of being. A change in shape, state or property may be affected by chemical, thermal or mechanical changes. Changes in shape, state or property may be affected by combination of operations and: either manual or automatic operation. In extremely rare cases, a component may be a part. An assembly may consist of multiple subassemblies, each of which may consist of multiple components. Note that sample, prototype and specimen should be terms used specifically to describe the type of test and should not contain the meaning of a definite type or natural state of the test piece. GH/T5169.22002/1EC60695-1-1:1999 To specify the product specifications and usage conditions or to establish a test product (see 4.2, 2.1) A test product is consistent with the description of the situation. Another product should be carefully selected. Whether the test product is different from the products of the previously checked people. Test products that have not been studied in detail. Appendix A (Informative Appendix) Process by whether the test product should include storage and delivery. |These products are within the scope of
Product Description·K
Consideration
In the specification
Use environment and usage conditions
Flowchart 1 Specification and usage of electrical and electronic products (see 4.2.2.1) Ignition resistance
Flame combustion
Long test
Fire melting
Strength test
Input to absolute
Hazard standard
Fire resistance
Fire victim
Ignition resistance!
Evaluation of ignition properties
fire start/fire spread
and/or heat
smoke and combustion products
Other electrical and electronic products
Safety performance
Go to 4.2.2.2
Chapter 5
What role does the product play in a fire
Toxicity and corrosiveness test of combustion products
GB/T 5169.2-2002/IEC 60695-1-1. 1999 Fire Sources
Evaluation of Fire as a Tide Inducing Product
Test
Fire Spread Test
Flowchart 2 describes the fire situation (4.2.2.2)
b) May emit light, flammable gases and flames + considerable risk of over-ignition in explosive atmospheres! ) Surrounding components or gases may ignite 1) Any of the above phenomena may cause mechanical deformation and structural changes, which may lead to the other two events. 2) The causes listed in the table are the most avoided situations, and the order of arrangement has nothing to do with importance and frequency of occurrence. 3) The protective device can be of temperature, mechanical, electrical or electrical type. Table 2: Terms used in this standard for electric and electronic products only Equivalent terms Material is a volatile raw material or a basic product that cannot be used normally and is in a form suitable for use as a semi-processed product or glass product 1 Material (or substance group, substance group, etc.): 1sd nrodust
mixture of substances
or chemical substances)
·Dynamic spare parts
materials with different shapes
used to perform specific
temponent
kinetic energy
use
to complete a complex
task|||multiple devices are designed
to be interconnected and interact with each other to ensure all
functional combinations required for a given
purpose
Spart-part unit
L'onstituent
Aeressnzies
Insiallation
Silicon oxide
Metal or plastic film
Metal wire, glass cloth
Epoxy glass with high temperature resistance
Laminate
Insulation tube
Strictly control the vertical cup
Magnetic field wrinkle
Printed circuit board
Microtun circuit
Glass dielectric capacitor
Electromagnet
Wireless telephone
Contactor
Inside the building and the electrical
wiring system
Transformed from one state to|| tt||Another state of being. A change in shape, state or property may be affected by chemical, thermal or mechanical changes. Changes in shape, state or property may be affected by combination of operations and: either manual or automatic operation. In extremely rare cases, a component may be a part. An assembly may consist of multiple subassemblies, each of which may consist of multiple components. Note that sample, prototype and specimen should be terms used specifically to describe the type of test and should not contain the meaning of a definite type or natural state of the test piece. GH/T5169.22002/1EC60695-1-1:1999 To specify the product specifications and usage conditions or to establish a test product (see 4.2, 2.1) A test product is consistent with the description of the situation. Another product should be carefully selected. Whether the test product is different from the products of the previously checked people. Test products that have not been studied in detail. Appendix A (Informative Appendix) Process by whether the test product should include storage and delivery. |These products are within the scope of
Product Description·K
Consideration
In the specification
Use environment and usage conditions
Flowchart 1 Specification and usage of electrical and electronic products (see 4.2.2.1) Ignition resistance
Flame combustion
Long test
Fire melting
Strength test
Input to absolute
Hazard standard
Fire resistance
Fire victim
Ignition resistance!
Evaluation of ignition properties
fire start/fire spread
and/or heat
smoke and combustion products
Other electrical and electronic products
Safety performance
Go to 4.2.2.2
Chapter 5
What role does the product play in a fire
Toxicity and corrosiveness test of combustion products
GB/T 5169.2-2002/IEC 60695-1-1. 1999 Fire Sources
Evaluation of Fire as a Tide Inducing Product
Test
Fire Spread Test
Flowchart 2 describes the fire situation (4.2.2.2)1)
A test product is consistent with
the description is sufficient
to choose
another product should
the test product is selected
is different
from
the products of the people who have been checked earlier
no
detailed
test product
Appendix A
(Informative Appendix)
process by
whether it is appropriate to include
the test product in the deposit
|These products are within the scope of
Product Description·K
Consideration
In the specification
Use environment and usage conditions
Flowchart 1 Specification and usage of electrical and electronic products (see 4.2.2.1) Ignition resistance
Flame combustion
Long test
Fire melting
Strength test
Input to absolute
Hazard standard
Fire resistance
Fire victim
Ignition resistance!
Evaluation of ignition properties
fire start/fire spread
and/or heat
smoke and combustion products
Other electrical and electronic products
Safety performance
Go to 4.2.2.2
Chapter 5
What role does the product play in a fire
Toxicity and corrosiveness test of combustion products
GB/T 5169.2-2002/IEC 60695-1-1. 1999 Fire Sources
Evaluation of Fire as a Tide Inducing Product
Test
Fire Spread Test
Flowchart 2 describes the fire situation (4.2.2.2)1)
A test product is consistent with
the description is sufficient
to choose
another product should
the test product is selected
is different
from
the products of the people
who have been checked earlier
no
test product
Appendix A
(Informative Appendix)
the process is by
whether it is appropriate to include
the test product in the deposit
|These products are within the scope of
Product Description·K
Consideration
In the specification
Use environment and usage conditions
Flowchart 1 Specification and usage of electrical and electronic products (see 4.2.2.1) Ignition resistance
Flame combustion
Long test
Fire melting
Strength test
Input to absolute
Hazard standard
Fire resistance
Fire victim
Ignition resistance!
Evaluation of ignition properties
fire start/fire spread
and/or heat
smoke and combustion products
Other electrical and electronic products
Safety performance
Go to 4.2.2.2
Chapter 5
What role does the product play in a fire
Toxicity and corrosiveness test of combustion products
GB/T 5169.2-2002/IEC 60695-1-1. 1999 Fire Sources
Evaluation of Fire as a Tide Inducing Product
Test
Fire Spread Test
Flowchart 2 describes the fire situation (4.2.2.2)
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