Environmental technical requirements of machinery products for ocean environment
Some standard content:
CB/T 14093.6—1997
This standard is part of the research content of the environmental adaptability of mechanical products.
Before this, some series of standards for environmental technical requirements of mechanical products have been formulated, including:
GB/T 14093.1—93
GB/T 14093.2--93
Environmental technical requirements for mechanical products
Environmental technical requirements for mechanical products
For hot environments
For cold environments
GB/T 14093. 393
Environmental technical requirements for mechanical products
For plateau environment
GI3/T14093.4—93
GB/T156211995
Environmental technical requirements for mechanical products
For industrial corrosion environment
Environmental technical requirements for mechanical products
For mining environment
Appendix A, B and C of this standard are all informative appendices. This standard is proposed by the Ministry of Machinery Industry of the People's Republic of China. This standard is drafted by the Guangzhou Electric Science Research Institute of the Ministry of Machinery Industry. The main drafter of this standard is Liu Kuifang.
This standard is entrusted to the Guangzhou Electric Science Research Institute of the Ministry of Machinery Industry for interpretation. 1 Scope
National Standard of the People's Republic of China
Environmental Technical Requirements of Machinery Products
For Marine Environment
Environmental technical requirements of machinery products for ocean environmentGB/T 14093.61997
This standard specifies the environmental conditions, product protection types, technical requirements, test methods, acceptance rules, and marking, storage and packaging of machinery products for marine environment.
This standard applies to machinery products used in ships or offshore facilities working at sea, as well as ports, docks and other places at sea. 2 References
The provisions contained in the following references constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised. All parties using this standard shall discuss the possibility of using the latest versions of the following standards. GB4208-93 Enclosure protection grade (IP code) (eqIEC529: J989) G4798.1-86 Environmental conditions for application of electrical and electronic products Storage GB4798.2-90 Environmental conditions for application of electrical and electronic products Transportation (neEC721-3-2: 1985) GB4798.3-90 Environmental conditions for application of electrical and electronic products Fixed use in weather-protected places GB 4798.4-90 Environmental conditions for application of electrical and electronic products Fixed use in weather-protected places (neq IEC 721-3-4)
GB/T4798.6—1996 Environmental conditions for application of electric and electronic products Marine (idtIEC721-3-6:1987)GH2423.1—89 Basic environmental test procedures for electric and electronic products Test A: Low temperature test method (eqy IEC 68-2-2:1971)
GB 2423. 2—89
Basic environmental test procedures for electric and electronic products, Test B High temperature test method (eqy IEC 68-2-2:1971)
GB/T2423.4--93 Basic environmental test procedures for electric and electronic products Test Ib: Cyclic damp heat test method (eqy IEC 68-2-30:1980)
GB/T2423.71995 Environmental testing for electrical and electronic products Part 2: Test methods Test Ec and guidance: Drop and overturn (mainly for equipment type sample type) (IEC:68-2-31:1982) GB/T2423.10-1995 Environmental testing for electric and electronic products Part 2: Test methods Test Fc and guidance: Vibration (sinusoidal) (IEC 68-2.6:1982)
GB 2123.16-1990 Basic environmental testing procedures for electric and electronic products Test J: Mildew test method (egv IFC 68-2-10:1988)
GB/T 2423.17-1993 Basic environmental testing procedures for electric and electronic products Test Ka: Salt spray test method
(cy IEC 68-2-11:1$81)
GB/T 2423.24—1995E
Environmental testing for electric and electronic products Part 2; Test method Test Sa: Simulating the temperature on the ground
GB/T 14093.6—1997
Solar radiation (1dtIFC68-2-5:1975)
(FH4879-85 Rust-proof packaging
GB5048·85 Moisture-proof packaging
GB7350—87 Technical conditions for waterproof packaging
GH13952—92 Mobile platform and offshore facilities, product environmental condition parameter classification GB/T14092.4—93 Mechanical product environmental conditions: Marine 3 Product protection type and use environmental conditions
3.1 Product protection type
3.1.1 Ship type, suitable for use in ships or offshore facilities and ports, docks and other places with climate protection. Code H, 3.1.2 Ship type, suitable for use in ships or offshore facilities and ports, docks and other places without climate protection, code WH. 3.2 Environmental conditions for use
3.2.1 Codes and descriptions of environmental conditions:
3.2.1.1 Types of environmental conditions include: climatic conditions (K). Special climatic conditions (Z): where Zh represents thermal radiation conditions; Za represents ambient air movement conditions; Zw represents water source conditions other than rain; l: physical conditions (R), chemically active substance conditions (), mechanically active substance conditions (S), mechanical conditions (M), and water conditions (Hh). 3.2.1.2 For products used in places with climate protection, the first digit before the environmental code is specified as "3". For products used in places with light climate protection, the first digit before the environmental code is specified as "4". 3.2.1.3 The number after each environmental code indicates the severity. Generally, a larger number indicates a higher severity, including lower severity levels. 3.2.2 Selection of environmental condition levels
Environmental condition level parameters are in accordance with the provisions of GB/T14092.4. For the selection of environmental condition levels, see Appendix A (suggestive appendix). 3.2.3 Application of environmental conditions
Products used under marine environmental conditions should be listed in the product technical conditions according to different marine conditions: if some products are not suitable for use under certain conditions, the environmental conditions may not be listed. Environmental conditions not listed in this standard should meet the requirements of basic products. 3.2.4 If the environmental condition level When the actual use requirements cannot be met: the user and the manufacturer shall negotiate and determine. 4 Technical requirements
4.1 All products used under the environmental conditions specified in this standard shall comply with the requirements of this standard. Those not specified in this standard shall comply with the relevant standards of the product.
4.2 Electrical products used in ships and industrial facilities shall meet the requirements of explosion-proof levels when used in hazardous areas. 4.3 Metals used outside ships, offshore facilities, ports and docks will be severely corroded by salt spray and seawater. The metal surface should have a good protective layer.
4.4 Electrical equipment used at sea and along the coast is easily affected by the combined effects of moisture and salt, which can easily cause the insulation level of the electrical equipment to decrease. Therefore, electrical equipment should have better insulation, and insulation materials of Class B or above should be selected. 4.5 Electrical equipment used on shipboard facilities must have good sealing performance. Except for lighting equipment that should reach IF55, the rest of the electrical equipment should reach IP56 4.6 The equipment used in the ship's engine room and platform generator room is affected by additional temperature: the humidity here is relatively high + the temperature of the equipment should be considered when selecting equipment. 4.7 Ships and platforms will be affected by strong typhoons, and there will be more vibration, impact, and swing during navigation and operation. The equipment should have high strength and meet the safety and reliability requirements in harsh environments: 4.8 In the platform mud room and the chemical plant on the shore, the equipment will be affected by chemically active substances. The equipment should have good protection capabilities, generally
GE/T 14093. 6-1997
4.9 For ships or offshore facilities working in icy seas, the impact of ice blocks during ice melting should be considered and necessary preventive measures should be taken. 4.10 The growth of marine organisms will affect the speed of the ship in operation. The growth of marine organisms at the water inlet (sea bottom door) of the sea valve box will block the flow of seawater and affect the safety and reliability of the equipment. Measures should be taken to protect it. 4.11 For the key points of environmental protection technology for mechanical products used in marine floating environments, please refer to Appendix B (suggestive Appendix). 5 Test methods
5.1 General requirements
5.1.1 After the basic performance test of mechanical products used in ships, offshore facilities, docks and ports is qualified, necessary environmental test items should be selected according to the degree to which various products are affected by marine environmental factors, and artificial simulated environmental tests should be conducted on the products. 5.1.2 Environmental test items. The test severity level should be selected from Table 1 according to the product's use environment, operation requirements, etc., as specified by the product standards.
5. 2 Test items
Table 1 lists the environmental test items that can be selected for product standards. Table 1 Environmental test items Test items Name Low temperature test High temperature test Alternating humidity test Shock test Long sea test Salt spray test Solar radiation test Shell protection test Drop and fall test GB 2423. 1 GB 2423.2 Test method GB/T 2423. 4 GB/T 2423. 10 GB2423.16 GB/T 2423. 17 GB/T 2423.24 GB 4208 GB/T 2423. 7
Brief introduction
To assess the adaptability of products or materials under low temperature conditions
To assess the adaptability of products or materials under high temperature conditions
To determine the adaptability of products or materials in humid environments
To assess the adaptability of components or products to vibration environments
To assess the degree of mold growth and the effect of products or materials under explosive growth conditions
To assess the protective layer and materials, the protective foundation of the product
To assess the adaptability of products and materials under solar radiation conditions
To assess the protective performance of the shell structure
To determine the adaptability of equipment to impact, damage, and collapse
6 Inspection rules
GB/T 14093.6—1997
6.1 Artificial simulation environment test should be one of the type tests of marine products. The assessment standard of the product after environmental test shall be determined by the product standard specification.
6.2 The artificial simulated environment test allows representative products to be selected from the series of products with the same structure, materials and process for testing. If the test is qualified, all products with the same structure, materials and process are considered qualified. 6.3 For large and medium-sized products and when the whole machine is not required to be used for artificial simulated environment testing, it is allowed to use product parts or simulated parts for testing, and the specific requirements can be specified in the product standard. 6.4 When sending products for testing or using parts and simulated parts instead of finished products for artificial simulated environment testing, the number shall be specified by the product standard, but for smaller products or parts, 2 to 3 pieces are specified at a time. 6.5 After the environmental test, the materials, parts or products shall be inspected for the affected main performance, and the inspection shall be in accordance with the product standard.
6.6 Products or parts that have passed the artificial simulated environment test can still be shipped as products after adjustment. 7 Marking, packaging and storage
7.1 The anti-expansion type of marine mechanical products should be indicated in the product model, that is, add the environmental code \H\ or "WII\" after the product model. 7.2 For retained products, the packaging should comply with the requirements of GB7350G4879 and G15048. 7.3 The product should be stored in a ventilated place without addictive gases. The environmental conditions for product storage should determine the severity of its environmental parameters according to GB4798.1.
7.4 The environmental conditions for product transportation should determine the severity of its environmental parameters according to GB1798.2. A1 Hydrogen climate condition level
CB/T 14093.61997
Appendix A
(Appendix of reminder)
Instructions for selecting environmental condition levels
The climate condition levels are divided according to the environmental conditions of my country's four sea areas. For details, please refer to (GB/T14092.4 standard. A2 Biological conditions
Biological conditions list not only plants (fungi, molds) and animals (harmful dusts such as rodents and mosquitoes), but also marine organisms (sea, barnacles, oysters, etc.).
A3 Chemically active substance conditions
(Level 1 is applicable to offshore facilities and ports in nearby areas without large-scale industrial discharge pollution, and general industrial plants at docks. Level C2 is used for various equipment exposed to salt spray and climate protection in offshore facilities. Level C3 is used for places with serious chemical media such as seriously polluted sea areas, chemical plants on the coast, coal docks, etc. A4 Chemically active substance conditions
S1 Grade S2 is used for various devices with measures to prevent money, dust and soot from intrusion. Grade S2 is used for boiler exhaust pipes and places with general dust in ports and docks. Grade S3 is used for devices without weather protection, as well as work places for loading cement, coal, and mud mixing rooms. A5 Mechanical environmental conditions
Mechanical conditions are based on the content of GR/T 4798.6. Products used in different parts must meet the specified requirements. A6 Hydrological conditions
Hydrological conditions include tidal range, wave height, current speed, floating ice sequence, etc., which are listed according to four sea areas. Products used in different sea areas must meet the requirements of the sea conditions in the sea area.
A7 Explosion-proof conditions
The division of hazardous areas is divided into 0, 1, and 2 hazardous areas according to GB13952. The selection of electrical equipment is carried out according to the corresponding requirements. Appendix B
(Suggested Appendix)
Key points of environmental protection technology for mechanical products used in marine environments B1 Seawater The devices used in the ship, including the hull, platform shell, and channel, are seriously corroded by seawater. It is advisable to use a good protective layer against seawater corrosion, such as zinc spraying (with sufficient thickness). Primers use epoxy asphalt paint, chlorinated rubber anti-rust paint, epoxy high zinc primer, etc. The use of cathodic protection can play a good role in slowing down the speed of corrosion. 2 Electrical equipment used at sea should have good insulation performance, and the motor should also be resistant to higher temperatures. It is advisable to use insulation of Class B or above. Products used at sea should have good sealing. Products used in places without climate protection should be able to meet the corresponding requirements of the standard. Organic materials should also be
GB/T 14093.61997
4 Electrical equipment used at sea and on the shore will be seriously affected by moisture and salt spray, and the insulation level will be seriously reduced. If necessary, add a heater and turn on the power when it is shut down, which can effectively improve the moisture resistance of the equipment. B5 For electronic products or connectors affected by corrosion, a new protective agent is recommended. DJB-823 solid film protective agent, which has anti-fouling, moisture-proof, anti-fogging and anti-hydrogen sulfide corrosion properties. B6 Sea [- platform and ship equipment will be subject to large vibrations, and the equipment components should adopt springs, swivels and other good vibration prevention measures. B In order to reduce the impact of marine organisms, anti-fouling paint is applied to the bottom of the ship at the water inlet (seabed door) of the sea valve box to prevent the rapid growth of marine organisms: Appendix C
(Suggested Appendix)
Environmental test inspection content
C1 This standard lists the environmental test items. Each professional product can select the necessary test according to the actual operation of the product. The inspection content after the environmental test is shown in Table C1.
Table C1 Recommended test contents
Serial number
Test items
Low temperature test
High temperature test
Heat test
Salt spray test
Solar radiation test
Enclosure protection test
Vibration test
Anti-group test
Fall and overturn test
Test contents
Starting performance
Mechanical properties
Oil and lubricating oiliness
Material and electrical equipment performance||t t||Electrical performance, material selection and protection technology, gold key layer measurement, appearance
Courtesy material performance and electrical temperature rise
Check whether solid or water has penetrated into the shell
Deformation, cracking, product structure, action performancewww.bzxz.net
Material long-term poisoning agent, product performance impact
Deformation, cracking, product structure, action performance
Material long-term poisoning agent, product performance impact
Deformation, cracking, product structure, action performance
Application instructions
Mechanical products powered by internal combustion engines, batteries, small motors, etc., performance evaluation
Rubber, cracking, metal materials and welding performance grease improvement, abdominal pressure system,Selection of fuel oil, etc.
Assess the ability of materials and electrical equipment to withstand high temperatures. Assess the adaptability and protection of products under humid conditions. Assess the protection capabilities of the outer shell, the protection process, the electroplating layer, and the chemical pre-treatment layer of the components.
The anti-corrosion performance of the surface coating layer, the additional temperature rise of the electrical structure, the dustproof or waterproof performance of the structure.
Assess the adaptability of the components of the connected product to the vibration environment. Assess the anti-toxicity of the material change product.
Assess the firmness and sea-change resistance of the product or component structure.
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