Protection types of special environmental condition and their symbols
Some standard content:
ICS 19.040
National Standard of the People's Republic of China
GB/T196072004
Protection types of special environmental condition and their symbols2004-12-13 Issued
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China2005-06-01 Implementation
GB/T19607—2004
Appendix A of this standard is an informative appendix
This standard is proposed by China Electrical Equipment Industry Association. Foreword
This standard is under the jurisdiction of Beijing Electrical Technology and Economic Research Institute of Machinery Industry. This standard was drafted by Guangzhou Electric Science Research Institute and participated in by Beijing Electrical and Electronic Technology and Economic Research Institute. Main drafters of this standard: Chen Ling, Liu Kuifang, Guo Lika Introduction GB/T 19607-2004 "Special Environmental Conditions Protection Types and Codes" is a national science and technology basic work project "Material Standards for Extreme (Special) Environmental Conditions", which is one of the series of national standards urgently needed for the development and construction of western my country. This standard specifies the special environmental protection types and codes of products, and meets the environmental adaptability requirements of a wide range with as few protection types as possible. 1EC publication 60721-2.1 "Environmental Conditions Classification: Natural Environmental Conditions Temperature and Humidity" divides the world into 9 types of carbon, 6 of which exist in my country, with special natural environments. The main one is plateau. my country's plateau has special natural environment and climatic conditions, with 33% of the area above 20 degrees above sea level. At the same time, high-explosive explosions are accompanied by special phenomena such as low temperature, high temperature, and extremely large temperature difference sandstorms, which have a great impact on materials under normal conditions. Defining the limits of these special conditions, providing effective detection and test methods, and giving necessary technical measures to materials under special environmental conditions will have a significant impact on the normal use of materials under special environmental conditions. In the past, my country did not conduct much research on the performance of these materials and basic equipment in high-altitude environments. There was a lack of basic research on special conditions, research on the adaptability of materials and equipment to special conditions, and the formulation of these basic standards, including the determination and classification of condition limits, simulation test methods, and technical measures to ensure the normal use of materials under extreme conditions. There was a lack of systematic collection and research on data on special conditions such as plateaus, heat and deserts, as well as a lack of systematic research on the serious dangers caused by special conditions to the supporting infrastructure of major engineering projects. If these problems are not solved, it will directly affect the implementation of major engineering projects in my country under special conditions. The project of "Material Standards for Extreme (Special) Environmental Conditions" mainly formulates basic national standards through research on special environmental conditions in the plateau, major engineering basic materials, and electromechanical products. The content involves the standard system of electromechanical equipment in the plateau, special environmental requirements, classification of special environmental conditions, dual general principles for protection, guidelines for simulation tests for people at high altitudes, metal materials, polymer materials, and plateau adaptability requirements for major electromechanical equipment and engineering machinery equipment. A total of 25 national standards have been completed or are in progress under the project: (1) Terminology of special environmental conditions (under development) (2) "Classification of Special Environmental Conditions in Plateau" (three releases) (3) "Classification of Special Environmental Conditions in Dry Heat" (released) (4) "Classification of Special Environmental Conditions in Dry Heat Sand Film" (released) (5) "Special Environmental Conditions Protection Types and Codes" (released) (6) "Environmental Test Methods for Special Environmental Conditions Part 1: General Principles" (approved) (7) "Environmental Test Methods for Special Environmental Conditions Part 2: Artificial Simulation (8) "Special Environmental Conditions
Environmental Test Methods Part 3: Artificial Simulation Test Methods and Guidelines for Polymer Materials" (already submitted for approval)
"Special Environmental ConditionswwW.bzxz.Net
General Technical Conditions for Plateau Electrical and Electronic Products (already submitted for approval) (9)
"Special Environmental Conditions Plateau Electrical and Electronic Equipment Design, Selection and Inspection Specifications" (already submitted for approval) (10)
"Special Environmental Conditions Commercial Original Machine Machinery: Part 1: Requirements for internal combustion power machinery in plateaus (already submitted for approval) 12)
"Special environmental conditions: Plateau machinery Part 2: Requirements for construction machinery in plateaus" (already submitted for approval) (13)
"Special environmental conditions: Plateau machinery Part 3: Selection and acceptance specifications for plateau-type construction machinery" (already submitted for approval) (t4)
"Wrong alloy profiles used in rail vehicle structures under special environmental conditions (already submitted for approval) "Special environmental conditions: Plateau electrical equipment product protection requirements - lightning, condensation and floating" Already submitted for approval) (15)
(16)
"Technical requirements for electrical equipment in special environmental conditions (low-voltage electrical appliances)" (already submitted for approval) (17)
"Technical requirements for electrical equipment in special environmental conditions (low-voltage switchgear)" (already submitted for approval) (18)
"Technical requirements for electrical equipment in special environmental conditions (high-voltage electrical appliances and switchgear)""Requirements for internal combustion engine power stations in special environmental conditions (under preparation)" (19)
GB/T 19607—2004
《Copper alloy contact wire for electric trains under special environmental conditions》 (under preparation)《Selection guide for special environmental conditions Part 1: Metal surface protection》 (submitted for approval)《Selection guide for special environmental conditions Part 2: Polymer materials》 (submitted for approval)《Special environmental conditions》 (under preparation ... 2 Normative references
GB/T 19607—2004
The clauses in the following documents become clauses of this standard through reference in this standard. For all dated references, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, parties that reach an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For all undated references, the latest versions are applicable to this standard. GB/T11801 Terminology of Environmental Conditions for Electric and Electronic Products 3 Terminology and Definitions
The terms and definitions established in GB/T11804 and the following terms and definitions apply to this standard. 3.1
Protection type of special environmental condition protectiontype of special environmental condition The type of product designed and manufactured by taking appropriate technical measures to adapt the product to certain special environmental conditions. 4 Classification and code of protection types for special environmental conditions 4.1 Classification of protection types
According to the climate characteristics of my country (see Figure 1) and the use, the special environmental conditions protection types of products are divided into six types: 1. Tropical protection type;
Cold protection type:
2. Plateau protection type:
3. Industrial corrosion protection type;
Mine protection type:
4.2.1 General
The codes of protection types for special environmental conditions are all expressed in capital Latin letters. The numbers after the letters indicate the severity level of the protection type. The larger the number, the more severe the level. The protection type code of the product indicates that the product meets its corresponding technical requirements. 4.2.2 Tropical protection types
Tropical protection types are divided into humid heat type, dry heat type, dry and wet heat combined type and dry and hot desert type, which are represented by the following codes: TH represents humid heat type, which is applicable to "humid heat", "sub-humid heat\climate zones and places where the high environmental climate is equivalent to humid heat climate zones; TA represents sub-heat type, which is applicable to the dry tropical areas in northwest my country and areas where local high temperatures may occur; T represents sub-humid heat combined type, which is applicable to sub-heat and humid heat areas; TS represents dry heat desert type, which is applicable to dry heat desert areas. GB/T 19607—2004
Chinese
Regional distribution map of six outdoor climate types in China Figure 1
Tropical protection type
Seling protection type
Highland protection type
Industrial skin protection type
Mountain protection type
Marine protection type
4.2.3 Cold protection type
Table 1 Protection type and code
Protection type
Heat-avoiding type
Dry heat type
Combined with humid heat
Desert dry heat type
Sea cooling type
The highest altitude is 2000m
The highest sea level is 300C m
The highest altitude is 4000㎡
The highest altitude is 5000 mm
Light film corrosion protection type
: Medium corrosion protection type
Strong corrosion protection type
: Mine type
Open-pit mine type
Marine type
Cold protection types are divided into cold-temperate type and cold type, which are represented by the following codes: HL1 represents cold-temperate type, which is suitable for "cold-temperate" climate zone; H.2 represents cold type, which is used in "cold" climate zone. 4.2.4 Plateau protection type
High source protection types are divided according to the thin pull height, which are represented by the following codes: G2 represents suitable for areas with a maximum altitude of 2,000 m; ~3 represents suitable for areas with a maximum altitude of 3,000 m; -G4 represents suitable for areas with a maximum altitude of 4,000 m; -(5 represents suitable for areas with a maximum altitude of 50,001. 4.2.5 Industrial abrasion protection type
GB/T 19607—2004
Industrial corrosion protection types are divided into anti-light corrosion type, anti-medium corrosion type and anti-strong corrosion type, which are represented by the following codes:: F0 represents (indoor) anti-light corrosion type, applicable to chemically active substances under conditions of 3C2; WFO represents (outdoor) anti-light corrosion type, applicable to chemically active substances under conditions of 4C2; -F1 represents (indoor) anti-medium corrosion type, applicable to chemically active substances under conditions of 3C3; -WF1 represents (outdoor) anti-corrosion type, applicable to chemically active substances under conditions of 4C3; -F2 represents (indoor) anti-corrosion type, applicable to chemically active substances under conditions of 3C.GB/T 19607—2004
--WF2 means (outdoor) strong corrosion resistance type, suitable for chemical active material conditions 4C4 level. Note 1: In industrial corrosion sites (referring to chemical plants, steel mills, power plants, etc.), the product is mainly affected by chemical corrosion media, high temperature, high humidity, water, dust and other factors. Outdoor products may be affected by environmental factors such as solar radiation, snow, etc. Note 2: The environmental condition parameters of 3C2, 4C2, 3G3, 4C3, 3C4, 4C4 can be found in GB/1 4798.3--1990 and GB/T 4798.4—19904.2.6 Mine protection types
Mine protection types are divided into mine type and open-pit type, which are represented by the following codes: K represents mine type, which is applicable to mines,
-WK represents open-pit type, which is applicable to open-pit mines (should be used in combination with climatic conditions). 4.2.7 Ship protection types
Ship protection types are represented by the following codes: H represents ship type, which is applicable to places on ships or offshore facilities, ports, docks, etc. with climate protection: W)1 represents outdoor ship type, which is applicable to places on dry ships or offshore facilities, ports, docks, etc. without climate protection. 4.3 Combination of product protection types
When the protection type of a product is composed of multiple protection types, the codes are arranged in the following order: a) Tropical (or cold) protection type code: 1) Industrial corrosion protection type code:
2) Plateau protection type code:
d) Other protection type codes
For the combination of protection types of outdoor products, it is only necessary to use W in the front code to indicate outdoor use, and W does not need to be repeated. Example 1: Products with mild corrosion resistance for outdoor use in cold and temperate climate zones and applicable to areas with a maximum altitude of 400 m are coded as follows: HLiWFOG4
Example 2: Products with severe corrosion resistance for open-pit mines in humid and hot climate zones are coded as follows: THwF2K
A.1 Basic requirements for environmental testing
Appendix A
(Informative appendix)
Guidelines for the application of protection types for special environmental conditions GB/T 19607—2004
The main environmental test items and basic requirements for products with protection types for special environmental conditions are shown in Table A1. The specific technical requirements should be further specified in the environmental technical requirements standard of the product. Table A1 Basic requirements for product environmental testing
Product protection
Outdoor W
Sensible heat type TH
Cold type
Dry heat type
1Wet heat
Combined type"
Dry heat sand
Bromine type TS
Highland type G
Main environmental test items Sun
Solar radiation
Shell protection (rain, dust)
High temperature, mixed
Shell protection (rain, dust)
Wet heat, high temperature, low temperature, temperature change, shade and dust sealing
High temperature, low humidity, temperature change
Shell protection (rain, sand)
Internal combustion engine function ||t t||Insulation performance of high voltage products
Functional test of products
Solar radiation
Basic requirements
Polymer materials or parts such as coatings, plastics, rubber, etc. shall meet certain technical requirements after testing
Shell protection level shall not be lower than TIP54, IP55
Product functional insulation performance and coating quality shall meet certain technical requirements
Metal surface and metal electroplating parts shall not have obvious rust and shall meet certain technical requirements
Organic materials shall not be obviously moldy and shall meet certain technical requirements! Products shall be able to operate normally under commercial and low temperature conditions. Shell protection level shall not be lower than 1P54TP55
Same as TII, TA Relevant regulations
Same as TA Corresponding regulations
Shell protection level shall not be lower than IP54, IF55
For internal combustion engines and other products that are screened, grilled or directly cooled, dust filtration must meet certain technical requirements and not affect the normal function of the product. The product function should start and run normally. Plastics and rubber should not be damaged due to brittleness or hardening, thereby affecting normal operation. The coating should not crack or fall off
Normal power output and starting performance should be ensured. External insulation discharge characteristics, electrical recording phenomenon should not affect the reliable operation of the product. The function and reliable operation of the product should not be affected by the altitude! The product function should start and run normally. Plastics and rubber parts should not be damaged due to brittleness or hardening, thereby affecting normal operation. The coating should not crack or fall off. The materials of the coating, plastic, rubber and other high-grade material components of outdoor products must meet the certain technical requirements after testing. GB/T 19607—2004
Product protection
A.2 Determination of protection type
Factors to be considered
Table A1 (continued)
Environmental test items
Humidity and heat·Salt spray
Chemical gas separation 4 cycles or test
Chemical body corrosion 10 cycles test
Humidity and heat, vibration and shock protection
Same as TH Corresponding regulations
Basic requirements
The product maintains normal function: good insulation performance, no obvious corrosion on the surface and fasteners
The product maintains normal function: good insulation performance, no obvious corrosion on the surface and fasteners
In addition to meeting the explosion-proof requirements, the product should also meet the requirements of heat protection, dustproof and sealing
Solar radiation, high temperature, low temperature, temperature change, low temperature
In addition to meeting the explosion-proof requirements, the product should also meet the special requirements of temperature start-up, damp heat, vibration and impact explosion-proof
High temperature, damp heat, shell protection·salt spray, shaking, tilting and overturning
(such as dry heat, cold, damp heat, etc.) Products used on board should meet the requirements of local high temperature places Requirements for use. In addition, it should also meet the requirements of moisture-proof, waterproof, salt spray, vibration, anti-dumping and collapse
solar radiation. High temperature, temperature, heat, temperature
Outdoor products should also meet the requirements of high temperature, low temperature, solar radiation, external protection, salt spray, vibration, collapse
and reverse
Determine the protection type of a product should consider the following factors: a) Indoor or outdoor use;
The climate zone to which the use area belongs:
The altitude of the use area:
d) The severity of industrial corrosion;
c) Whether it is used in mining (mine or open-pit mine)
f) Whether it is used on ships;
) The degree to which the product is affected by the above factors. A, 2.2 Simplified concept
Requirement, the enclosure protection level should reach 1P55
The use environment conditions of basic products should have a wider range of relevant environmental technical requirements, so as to reduce the protection types of products and avoid manufacturing complexity. For example, if the low temperature of the use environment conditions has been specified as 25℃, there is no need to further divide the cold HLI type products. Products that have already included a certain harsh level can be classified into more stringent protection types: for example, when the altitude of the use environment conditions of the basic products has been specified as a maximum of 2000m, the special environmental protection type should specify the harsh level technical requirements of the altitude above 2000m.
721-3-1)
G13/T 4798. 3..1990
GB/T 4798.4—1990
Art Examination Documents
GB/T19607—2004
Environmental conditions for application of electrical and electronic products
: Fixed use in weather-protected locations
Environmental conditions for application of electrical and electronic products Fixed use in weather-protected locations (neq IEC
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