This standard specifies the main methods of controlling static electricity in the production of rubber products, protective measures to prevent static electricity hazards, management measures and static electricity detection. This standard is applicable to the engineering design, static electricity safety management and design and manufacture of rubber machinery products in various rubber product manufacturers. GB 4655-2003 Static Electricity Safety Regulations for Rubber Industry GB4655-2003 Standard download decompression password: www.bzxz.net

GR4655—2003
In Chapter 6 of this standard, 9., 6.2.2, 6.2.3.0.2.4m7.6.2.5h?~6.25m), 6.2.8 are for the purpose of recording, and the rest are for the purpose of recommendation
The six standards are in line with the original standard 1581:
The applicable range of the standard is large.
-It can be customized with 12153-1u standard, which can also attract your price: According to the three parts of the water spectrum in the deodorizing belt, directly use 8/13-19, which can determine the grounding method and the size of the resistance. In the prevention of the occurrence of electric block before the browse, the relative potential of the ball store from the original 70% to cancel the original standard A, B Appendix E, directly quoted the relative pressure less national standard to promote the original inspection standard mandatory door installation Yan electric hazard elimination standard according to the standard, the commonly used static internal standard its instrument. Only the table was carried out in practice. This standard is the information of the kidney.
This standard is produced by the national safety standard production management: the same rubber whole material standardization committee rubber collection machinery standardization technical committee: this cup is mainly responsible for the table from the Chinese North East Industrial New Research and Design Institute: the main unit of the standard is the wood standard Feng Kangjian, evil standard, Ma Haiwan, Kou Yanxin, Qu Xijia. Qiban. This standard replaces the previous version of the standard: GP: 4551984.
National Standard
Electrostatic Safety Regulations for Rubber Industry
B4655—2003
This standard specifies the main methods of controlling static electricity in the production of rubber products, the protective measures, supervision measures and electrostatic models to prevent static electricity hazards, etc.
This standard is applicable to the engineering design, static electricity safety management and design and manufacture of rubber machinery products of various rubber production plants. 2 Normative Reference Documents
The following two items are cited in this standard and become the terms of this standard. The documents are valid for the specified period, and all subsequent amendments (excluding discontinuation content) or revisions do not apply to this standard. However, all parties who reach or agree on this standard are encouraged to study and apply the latest versions of these documents. For any referenced document without a date, the latest version shall apply to this standard. GB12-58—1990 General Guide for Preventing Electrostatic Accidents GR/T15153 Technical Specification for Electrostatic Safety GB53053 Specification for Design of Electrical Installations in Environments with Dangers of Explosion and Fire 3 Terms and Definitions GP/T5453 shall apply to this standard. 4 Generation, Accumulation and Harmful Factors of Static Electricity 4.1 Generation of Static Electricity During the production of rubber products, static electricity is generated and transferred due to contact, separation, friction, and tearing of rubber and other materials (metal, fabric, chemical fiber, etc.), and semi-finished products themselves. Static electricity carries static electricity. 4. 2. Static electricity accumulation
Some rubber semi-finished products have a resistivity greater than 10%. The generated charge is not easy to discharge. When the static charge generation rate in the production process is higher than the discharge rate, it will form a static electricity accumulation system.
4.3 Main hazards of static electricity
The main hazards of static electricity in the production process of rubber products are as follows: a) explosion and fire accidents; b) the body loses balance due to static electricity, and the accidents caused by it: ) electric shock affects the physical and mental health of people 1d》In the production of European refinery, the product quality is affected by the action of static electricity: e) the electromagnetic field generated by static electricity is affected by the normal operation of the equipment. 4.4 Static electricity will cause explosion and fire accidents when the following conditions are met at the same time: a) There must be enough static charge on the separated interface and the potential difference must be enough to produce static electricity discharge. b) The energy of static electricity discharge must be enough to ignite the combustible and flammable mixture. The minimum ignition energy of combustible and flammable mixtures can be found in Appendix G of G2158-1S90. The amount of warning discharge between conductors can be calculated by the following formula: cv
GF4655-2003
Formula,
W.: Discharge energy &, unit is heat;
[Equivalent small change between bodies, unit is compensation (F); Electrical potential difference between bodies, unit is volt (V). 442: When the following conditions are met, static electricity will cause electric shock to the human body. When the amount of charge discharged between the human body and the conductor reaches × or more, it is possible to cause a shock. When the human body is 1:1F, the human body potential is about 3kV. The electrical potential of the same human body is recorded in GB12158-15F.
b) When the semi-conductor is non-conductive, the threshold conditions for causing electric shock to the human body do not change! The following is a brief description. When the voltage is above 30V, you will feel the electric shock. 5. Main methods to control static electricity
5.1 Static electricity grounding
5.1. In places where static electricity is dangerous, all static conductive objects should be grounded. For metal objects, conductive connections with the earth should be made. For static conductors other than metal, conductive connections should be made. 5.1.2 The conductivity between the grounding point and the earth should not be greater than 10°. The resistance value of each static connection should not be e
5.1.3 When the grounding device is used together with the grounding system as described above, the minimum value of the grounding device should be selected. If the grounding device is used, the minimum value of the grounding device should be selected. 5.2 Increase the air resistance
The relative density of the water-based insulating material can prevent the accumulation of static electricity. The local environment should be scanned and the humidity should be controlled. 5.3 Use static eliminators to carefully ionize the air in order to eliminate the peak static electricity. 5.3. Types of static eliminators: Self-filtration static eliminator or external source static eliminator... Radioactive static eliminator. Ionization static eliminator.
5.3.2i Select the static eliminator based on the following conditions - the requirements for static electricity avoidance;
Operational characteristics:
... Explosive environment, medium level and type of additional battery-type static eliminator. The length of the electrode should be 10cm~15cm, and the width of the charged body should be 15cm: the type and dispersion of the ionized static eliminator group's high carbon head should be determined according to the possible control installation distance of the charged body. 5.33 The installation position of the static eliminator should be convenient for process operation:
-… The static eliminator has a good effect
The active position of the brush is close to the part with the highest potential of the hidden body. The installation position and distance selection are shown in 1,—· The correct installation value:
V… The installation position of the static eliminator should be high: 2 The distance between the discharge device and the transmission core. Figure 1 Example of static eliminator installation distance and installation position 5.4 Material matching
GE4655—2003
According to the order of electrostatic charging polarity, the material matching should be carried out: the production process should be suitable for the discharge of the least amount of electrostatic discharge. The polarity sequence table in the charged body must be in Appendix G3:2151S9-5.5 Improve the surrounding environment conditions of the charged body
Control the concentration of combustibles in the gas and keep it below the explosion concentration limit. When the explosive mixture is close to the limit, the mechanical ventilation measures of the workplace should be strengthened. 5.5 Prevent the human body from being charged
1. The workers should wear anti-static or anti-static clothing and the working ground should be conductive.
Carry out measures to prevent static electricity hazards
6.1 Basic measures
5.! 1 When the ignitable mixture is in the surrounding environment and reaches the explosion limit, the static potential of the insulator of the ignitable mixture with a minimum ignition energy of less than 0.1 is controlled below 1? The maximum ignition energy is equal to 0m. For the ignitable and easily ignited mixture, the static potential of the insulator should be below 5. .2 Only for the prevention of electric shock to workers, the warning potential of the insulator should be controlled below 10 kV. 5.1.3 In the case where static electricity may cause an accident to operators, in addition to controlling the static electricity of the insulator below 10 kV, corresponding safety measures should be taken for equipment or installations. 6.1.2 In areas with explosion and fire risks, workers should wear anti-static clothing, and the operating area should be equipped with protective ground. The anti-static floor should have a voltage value of more than 10° and maintain its conductive properties. Operators should not wear synthetic fiber night clothes (except for clothes that have been treated with static filters in advance) to enter the above-mentioned areas, and should not change clothes in the above-mentioned areas. 3.2 Measures to prevent static electricity in various processes and places 5.2. 1 Rubber Refining
6) When using an open-type paint glue machine to refine raw rubber, press the insulated material into sheets, and re-refined gasoline glue slurry for film refining, a static eliminator should be installed.
b When using an open-type paint glue machine to refine green hot-dip olefin rubber, the rubber sheets should be placed in a static eliminator. 6.2.2. When using flammable agents to make rubber: The following precautions should be taken: 1. The slurry making machine should use a stepping wheel transmission. When using a V-belt transmission, an anti-electric V-belt should be selected. If a general V-belt transmission is used, measures should be taken to improve its surface conductivity, and it should be checked regularly and handled in time according to the use situation, so that the surface voltage value of any point is not greater than 100%.
G4655~-2003
h) The rotation of the rubber film should be close to the fire hazard area, and the action should be slow and steady. Do not use point-to-point connection to spray the agent in the rubber barrel. The flow rate should be limited to: m/ When the pipeline for conveying pigments, gasoline and other agents is made of rubber or other materials, it should be deeply grounded with conductive rubber, conductive materials or metal woven layers.
山）When driving glue, feeding glue and opening glue, the glue should be added first and then the work should be done.
e）In the manufacturing process, when the glue dispenser does not use the partition wall, the motor should be used. The anti-electrical protection should be selected according to the requirements of GB50058:
6.2.3 Gluing
When using the fuel test glue coating stock, the following methods should be used: When designing the glue signal, the actual stock should use the conductive stock. a>
Change the active component stomach waist induction seat type electric eliminator. b
Add micro-electric system around the system, set local steam facilities at the coating chamber, the cavity outlet and the front of the main box, so that the relative humidity of the air around the charged air can be kept at 70% before starting. Open the steam door before starting. d) Do not use metal tools to take the slurry, but use tools made of non-metallic conductive materials. 6.2.4 Pressure cut-off
) On the equipment, all positions where product operators often touch the charged insulation should be equipped with automatic or ionizing devices.
For the purpose of ) self-inductive or isolating static eliminators shall be installed on the rated equipment and in the parts where operators often come into contact with live parts.
6.2.5 For any process using gasoline and oil-retaining agent slurry, the following measures shall be taken according to different process types: a) When the tire is formed using a folding machine head, it is operated according to the parallel charging method: The parallel charging method is a safe method to solve the problem of fire in the slow-moving machine head. Its principle is to achieve the goal of collecting the fire through the folding machine head. The machine shaft is grounded, and a capacitor with a value similar to its equivalent capacitance to the ground is connected in parallel with the charged cloth, so as to suppress the electrostatic charge between the machine head and the ground. The purpose of the machine shaft is to connect a capacitor with a value similar to its equivalent capacitance to the ground ... 6.2.6 During the drying of cloth, it is advisable to install a static eliminator at the appropriate position of the cloth. 6.2.7 During the drying of cloth, it is advisable to install a static eliminator at the appropriate position of the cloth. 6.2.8 Solvent (barrel) 6.2.8.1 After the antistatic agent is added, the metal nozzle should be in good contact or connection with the metal cabinet and can be grounded: 6.2.9.2 The antistatic container should not be filled with solvent. 6.2.8.3 When adding antistatic agent to the antistatic container, any metal parts on the container should be in contact with the solvent pipe. If the gold net is used for the maximum bucket filling, the gold leakage meter should be grounded. 6.3 Comprehensive setting of safety measures for main processes and places The comprehensive setting of safety measures for each main process and place is shown in Table 1. Other processes can refer to this process and take corresponding measures. Comprehensive setting of safety measures for each main process and place Table 1
Preventive measures
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Permit: The rate indicates the recommended measures. 7
Management measures to prevent electric shock hazards
Eliminator
7.1 Each unit should formulate a specific implementation plan for anti-static hazards and check the specific electric shock hazards.
Anti-static
7.2 The personnel responsible for anti-static safety management should learn the technical knowledge of static electricity. When a possible static accident is found, they have the right to take effective measures and report it to the relevant departments. 7.3 The safety management department and fire department of each unit should report to the professional and technical departments such as technology, equipment, civil engineering, electricity and ventilation, and formulate an implementation plan based on the situation of the unit. "Static safety regulations are implemented in detail\, and the technical department and fire department shall consult and implement: 7.4 All anti-static equipment, test instruments and dental care products shall be regularly inspected and archived. 7.5 Personnel working in areas with explosion and fire hazards shall be given education and training on static safety at any time or regularly, and shall be included in the scope of safety technical assessment.
Daily static detection
The purpose of static detection
Analyze the hazards:
Study the scope of application:
Judge the elimination effect.
8.2 Commonly used static measurement instruments and meters
See section A,
CB 4655-2003
Prediction of static electricity performance of objects
Electrostatic conductivity of objects;
Surface conductivity of objects.
B.4 Test items for static electricity status of charged objects in actual production process—static potential of charged objects:
Previous air temperature and relative humidity of space.
—Running speed of charged objects;
.Concentration of combustible gas;
Resistance value of the ground of the same electric field.
Judge the effect of the use of static electricity safety measures. During the day, the accuracy of the static potential condenser is 10%, but the detection point should be strong. In the amount of static safety devices. The sampling of the inspection point is selected by the technology.
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On the power-on to eliminate the intelligent discharge electrode, the distance between the probes is set, and the distance between the probe transmission center is measured. Figure 2 Schematic diagram of the selection of the detection position for judging the effect of eliminating static electricity 6
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