GB 18269-2000 Insulated hand tools for live working at voltages up to 1 kV AC and 1.5 kV DC
Some standard content:
GB18269--2000
Articles 5.1, 5.3, 5.4, 5.5, 5.6, 5.7 and 5.8 of this standard are mandatory, and the rest are recommended
This standard is equivalent to IEC60900:1995 "Insulated Hand Tools for Live Working at Voltages of 1kV AC, 1.5kV DC and Below", and basically adopts the contents of the IEC standard in terms of technical requirements, tests, inspection rules, markings, packaging, transportation and storage. The writing format is written according to the requirements of GB/T1.1-1993. Appendix A of this standard is the appendix of the standard. This standard was proposed by the Electric Power Department of the Economic and Trade Commission of the People's Republic of China. This standard is under the jurisdiction of the National Technical Committee for Standardization of Live Working. The drafting units of this standard are: Wuhan High Voltage Research Institute, Guangdong Zhuhai Electric Power Bureau. The main drafters of this standard are: Hu Yi, Yi Hui, Zhang Lihua, Wang Linong, Sun Tingxi, and Zhang Yunzhou. This standard is interpreted by the National Technical Committee for Standardization of Live Working. 679
GB18269-2000
IEC Foreword
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1) IEC's formal resolutions or agreements on technical aspects are made by technical committees composed of all national committees that are particularly interested in this matter, and their expressions should be as close as possible to the international views on this issue. 2) These resolutions or agreements are recommended for use internationally and can be accepted by national committees. 3) In order to promote consistency among countries, IEC hopes that all national committees will adopt IEC recommended standards as their national standards if permitted by their countries. The differences between IEC recommended standards and their national standards should be explained as clearly as possible in their national standards. This standard was proposed by IEC/TC78 Technical Committee (Live Working Tools). The development of this standard is based on the following documents:
Six-month method
78(CO)11
The revision of this standard is based on the following documents:
Voting report
78(CO)16
Discussion report
78/163
Two-month procedure
78(CO)17
Voting report
78(C))22
Voting report
78/178
The voting reports listed in the table above can show the full situation of voting for the approval of the standard. This standard refers to the following IEC publications:
Publication 50: International Electrotechnical Vocabulary (IEV) 50(151):1978 Chapter 151 Electromagnetic Equipment 60 High Voltage Test Techniques
212:1971 Standard conditions for solid insulating materials before use and during testing 410:1973 Sampling plans and procedures for inspection of attributes 743:1983 Terminology of tools and equipment for live working 1318:1994 Guidelines for quality assurance programmes for live working Other publications referenced in this standard: ISO 2859:1974 ISO 1703:1983 Sampling plans and lists for inspection of attributes Tools for assembly of nuts and screws - Special terms Pliers and clamps - Special terms ISO 5742:1982 1 Scope National Standard of the People's Republic of China Insulating hand tools for live working up to 1 000 V ac and 1 500 V dcGB18269—-2000
eqv 1EC 60900:1995
This standard specifies the definition, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of insulated hand tools for live working at voltages of 1 kV AC, 1.5 kV DC and below. This standard applies to insulated hand tools and covered insulated hand tools used for live working at voltages of 1 kV AC, 1.5 kV DC and below.
This standard does not include:
Tools and devices with external power supply.
-Insulating rods for indirect working.
2 Referenced standards
The provisions contained in the following standards 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, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T14286--1993 Terminology of live working (neqIEC743:1983) 3 Definitions
This standard adopts the following definitions.
3.1 Insulated hand tool Insulated hand tool A hand tool made of metal material and fully or partially covered with insulating material. 3.2 Insulated hand tool Insulating hand tool, except for the metal insert at the end, a hand tool made of all or mainly insulating material. Other terms are subject to the provisions of GB/T14286-1993. 4 Technical requirements
4.1 General technical requirements
4.1.1 Under the specified normal use conditions, insulated hand tools and insulated hand tools should ensure the safety of operators and equipment. 4.1.2 The mechanical properties of hand tools should not be affected after being coated with an insulating layer. 4.1.3 Insulated hand tools for live working are often used to support, move live objects or cut wires, and must have sufficient mechanical strength to prevent accidents caused by breakage.
4.1.4 The insulating material should be selected according to the voltage, current, mechanical and thermal stress that may be experienced during use. The insulating material should have sufficient electrical vapor insulation strength and good flame retardant performance. Approved by the State Administration of Quality and Technical Supervision on December 11, 2000 and implemented on October 1, 2001
GB 18269--2000
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4.1.5 The insulating layer can be composed of one or more layers of insulating material. If two or more layers are used, different colors can be used. The outer surface of the insulation should have anti-slip properties.
4.1.6 In the range of ambient temperature from -20°C to +70°C, the performance of the tool should meet the working requirements. The insulating material used to make the tool should be firmly adhered to the conductive parts. Tools used in low temperature environments (-40°C) should be marked with Class C and designed for low temperature environments.
4.1.7 Assembled tools should have locking devices to prevent them from being separated due to accidental reasons. 4.1.8 Double-ended live working tools should be made into insulating tools rather than coated insulating tools. 4.1.9 The exposed parts of metal tools should be treated with necessary anti-rust treatment. 4.2 Specific requirements
4.2.1 Screwdrivers and wrenches
The allowed non-insulated length of the working end of a screwdriver (see Figure 1) is as follows: · Slot screwdriver: maximum length is 15mm; · Other types of screwdrivers (square, hexagonal): maximum length is 18mm; , Operating wrench: the non-insulated part is the working surface of the end; · Socket wrench: the non-insulated part is the working surface and contact surface of the end. The insulation of the screwdriver blade should be connected with the insulation of the handle. The insulation thickness of the blade part should not exceed 2mm within a length of 30mm from the blade end (area C in Figure 1). This insulating part can be cylindrical or conical. 4.2.2 The insulated handles of hand pliers, stripping pliers, cable cutters and cable cutting tools shall have hand guards to prevent the hand from sliding towards the metal part of the end that is not covered with insulating material (Figure 2a). The hand guards shall be high enough to prevent the fingers from sliding towards the conductive part during work. The minimum size of the hand guard of hand pliers is (refer to Figure 2a). When the hand pliers are held to the left and right, the hand guard is 10mm higher than the flat surface; when the hand pliers are held to the top and bottom, the hand guard is 5mm higher than the flat surface. The minimum distance between the inner edge of the hand guard and the exposed metal surface without insulation layer is 12mm. The insulating part of the hand guard shall extend forward as far as possible to cover the exposed metal surface. For tools with a handle length of more than 400mm, the hand guard may not be required. 4.2.3 The minimum length of the insulated handle of the tool
is 100mm.
To prevent the hand from sliding towards the conductive part during work, the front end of the handle shall have a hand guard, and the minimum height of the hand guard is 5mm. The minimum distance between the inner edge of the hand guard and the non-insulated part is 12mm (refer to Figure 2b)). The length of the non-insulated portion of the blade should not exceed 65 mm (see Figure 2b). 4.2.4 Tweezers
The total length of the tweezers is 130mm~200mm, and the length of the handle should not be less than 80mm (see Figure 3). Both handles of the tweezers should have a hand guard, which cannot slide. The height (h) and width (b) of the hand guard should be sufficient to prevent hand slipping during work. The minimum size of the metal part of the end that is not covered with insulation is 5mm. The length (e) from the edge of the handle to the insulating part of the working end should be between 12mm~35mm, and the hardness of the metal parts of the tweezers should be not less than HRC35. The length of the uninsulated part of the working end should not exceed 20mm. Fully insulated tweezers should have no exposed conductor part. 5 Tests
5.1 Test environmental conditions
Temperature: 23℃±5℃.
Relative humidity: 45%~~75%.
GB 18269—2000
The test sample should be placed in this climatic condition for at least 16h before testing. The error of 5% is allowed for each test result. 5.2 Appearance and Dimension Inspection
5.2.1 Appearance Inspection
Tools (especially insulating tools) should be inspected visually and confirmed to have no external defects, and the markings should be clear and complete. 5.2.2 Dimension Inspection
Inspect the dimensions according to the dimensional requirements in the standard. 5.3 Mechanical Impact Test
The test should be carried out in one of the two ways shown in Figure 4a) and Figure 4b), and the hardness of the test hammer should be at least HRC20. At least three test points distributed in different positions should be selected on the insulating material or insulating layer. If the insulating material is not broken, detached, or cracked through the insulating layer, the test is passed. 5.3.1 Mechanical Impact Test at Room Temperature
The impact test at room temperature is carried out at a laboratory temperature of 23℃±5℃. The impact energy W obtained on the tested tool is equal to the energy of the tool falling from a height of 2m on a hard surface. The height of the test hammer falling is obtained by the following formula.
H=W/P =2XF/P
Where: H--height from which the test hammer falls, m;
F——weight of the tool under test, N;
Pweight of the test hammer, N.
5.3.2 Mechanical impact test at low temperature
Before the test, the tool should be placed in a low temperature chamber at 25℃±3℃ for 2h. The impact test should be carried out 2min after the tool is removed from the low temperature chamber, and the room temperature should be 23℃±5C. The impact energy W on the tool under test is equal to the energy of the tool falling from a height of 0.6m onto a hard surface. H = W/P = 0. 6 × F/P
Where: H--height from which the test hammer falls, m; F——weight of the tool under test, N;
Pweight of the test hammer, N.
5.3.3 Ultra-low temperature mechanical impact test
Before the test, the tool should be placed in a low temperature chamber at 40℃±3℃ for 2h. The test method is the same as 5.3.2.
5.4 Electrical test
5.4.1 Before the test, the test piece should be placed in a tap water tank at room temperature of 23℃±5℃ and soaked for 24h±0.5h, then taken out and wiped dry for electrical test. For tools that can be assembled, they should be placed in a container with a relative humidity of 91%~95% and a temperature of 23℃±5℃ for 48h to replace immersion in water. The tools should not be assembled before this.
5.4.2 Coated insulating tools
The coated insulating part of the test piece is immersed in the tap water in the water tank. The height of the insulating part above the water surface is 24mm±2mm, and the conductive part is exposed on the water surface (see Figure 5).
The hand-type pliers to be tested are arranged as follows: the distance d between the inner sides of the two insulated handles should be 2mm to 3mm, or the minimum possible distance of the tool should be used, but should not be less than 2mm (see Figure 5). For tools that can be assembled, the slot is not filled with tap water during the test, but with a nickel stainless steel bead with a diameter of 3mm. The test arrangement is shown in Figure 5. A power frequency voltage with a root mean square value of 10kV is applied for a pressurization time of 3min. The leakage current is measured. For an insulating tool with an insulating coating of 20cm in length, the leakage current should be less than 1mA. The maximum allowable value of the leakage current can be calculated as follows: 683
GB 18269-2000
Where: I is the maximum allowable value of the leakage current (rounded value), mA; L is the length of the insulating coating.m.
Assemblyable tools should be tested for various different situations. If no breakdown, discharge or flashover occurs during the test, and the leakage current does not exceed the allowable value, the test is passed. 5.4.3 Insulated tools
Tools with metal ends are tested in accordance with 5.4.2. Fully insulated tools are tested as follows: -YKAONiKAca
A 5 mm wide conductive tape is coated on the surface of the tool handle with a spacing of 24 mm ± 2 mm (see Figure 6). A power frequency voltage of 10 kV RMS is applied between each adjacent electrode for 3 min. The test is passed if no breakdown, discharge or flashover occurs during the test and the leakage current is less than 0.5 mA multiplied by the number of gaps between the electrodes.
5.5 Indentation test (for covered insulated tools) Covered insulated tools that have passed the electrical test are subjected to an indentation test. All insulating coverings on the tool are subjected to this test. If the radius of curvature r at the indentation test point is ≥ 10 mm, the test is carried out on the test device shown in Figure 7a). The part in contact with the test piece is a protruding stainless steel hemisphere with a diameter of 5 mm. The pressure applied is 20 N. If the radius r of the indentation test point is less than 10mm, the part in contact with the test piece is a rod with a diameter of 4mm and a length of 30mm, arranged at right angles to the tool axis, and the force applied is 20N (see Figure 7b). After adjusting the test device, place the tool in a heating chamber with a temperature of 70℃ and a relative humidity of <20% for 2h, and then place the test piece outside the heating chamber for 5min.
Then, under the environmental conditions of room temperature of 23℃±5℃ and humidity of 45%~75%, a power frequency test voltage of 5kV is applied between the insulating coating and the metal part, and the withstand voltage time is 3min. If no breakdown, discharge or flashover occurs during the test, the test is passed. 5.6 Adhesion test (for covered insulating tools) 5.6.1 Test conditions
Before the test, the test piece shall be heated to 70°C ± 2°C in a naturally ventilated heating chamber for 168 h. After being taken out of the heating chamber and naturally cooled for 3 min to 4 min, the test shall be carried out in an environment with a temperature of 23°C ± 5°C and a humidity of 45% to 75%. 5.6.2 Working end test
The following tools shall be tested:
· Adjustable wrench;
· Open-end fixed wrench;
· Assembleable tools.
The test may be carried out according to method A in Figure 8a) or method B in Figure 8b). Method A (see Figure 8a)
Hang a hook with a cutting edge width of 5 mm on the working end, and make it not touch the conductive part. Apply a force of F = 50 N on the boundary between the insulating coating and the conductive part for 3 min. Method B (see Figure 8b)
Place a device with two cutting edges (each with a cutting edge width of 5 mm) on the working end and make it not contact the conductive part. Apply a force of F-100N on the boundary between the insulating coating and the conductive part for 3 minutes. In the above two tests, if the displacement of the insulating coating on the conductive part does not exceed 3 mm and there is no damage to the insulating material, the test is passed. 5.6.3 Test of the insulating layer of the screwdriver shaft
The test arrangement of the screwdriver shaft is shown in Figure 9.
GB 18269-2000
The biting depth of the cutting edge of the test equipment on the insulating coating shall not exceed 50% of the thickness of the coating, and the position of the biting point is 10mm~~15mm from the lower end of the handle. If the biting point slides on the insulating layer, it is allowed to cut a groove with a depth of 50% of the thickness on the insulating layer of the screwdriver shaft to prevent it from sliding.
Apply a pressure F along the axial direction of the screwdriver shaft and last for 1 minute. The size of F (in N) should be 35 times the diameter d (in mm) of the screwdriver shaft, that is, F=35d.
If the displacement of the insulating coating from the initial position on the conductive part is not greater than 3mm and the insulating material is not damaged, the test is passed.
5.6.4 Insulation layer adhesion test for the whole tool The tools required for this test are pliers, removers, cable cutting tools, cable scissors and knives. The test arrangement is shown in Figure 10. The applied force F is 500N and the duration is 3min. If the insulating handle is still firmly bonded to the conductive part and the hand guard is also firmly connected to the handle, the test is passed.
5.7 Flame retardant test
The test shall be carried out in a room without airflow, with the test piece placed horizontally so that the axis of the burning nozzle is at right angles to the axis of the tool handle and forms a vertical plane.
The burning nozzle is supplied with industrial methane and equipped with a suitable regulator and pressure gauge to produce a uniform airflow. The diameter of the nozzle is 9.5mm±0.5mm to produce a blue flame of 20mm±2mm in height. First, ignite and adjust the blue flame of 20mm±2mm in a vertical position, then place the nozzle in the test position so that the axis of the flame is at right angles to the axis of the tool, as shown in Figure 11. The horizontal reference line 4 in the figure is the reference line for measuring the height of the flame. If different types of insulating materials are used in the same tool, the test shall be carried out on each type of material, and the flame shall be removed after being kept on the test piece for 10s. During the test, it must be ensured that there is no interference from the air flow. After removing the flame, observe the flame that continues to burn on the test piece for 20s. If the flame height on the test piece does not exceed 120mm within 20s, the test is passed.
5.8 Mechanical tests
All types of covered insulated tools and insulated tools shall meet the specified mechanical properties and requirements. 5.8.1 Pliers and clamps
These tools shall be subjected to the following tests
a) Bending test
As shown in Figure 12, apply force F (N) to the handle and maintain it for 3 minutes. If the total length of the tool L<100mm, then F=0.5L (L in mm, F in N). If the total length of the tool L≥100mm, then F=50N. If there is no damage to any part of the tool, no visible permanent deformation, and the ends of the handles do not touch each other, the test is passed. b) Torsion test
As shown in Figure 13.
The pliers are connected to the torque measuring device through a connector. The connector of the flat-head pliers is a steel part with a width of 12mm and a thickness of 3mm. The connector is inserted into the jaws by 6mm±1mm. The connecting piece of the round-head pliers has two holes or grooves parallel to the central axis, and the diameter allows the nose of the pliers to be inserted to a depth of 6mm ± 1mm. The edges of the holes or grooves are rounded, and the hardness of the connecting piece is at least HRC50. The handles of the pliers A and B are clamped, and the distance from the fulcrum of the pliers is b. The force applied is equal to the force F specified in the bending test. F (N) = 0.5L (mm) (but the maximum value is 50N) Where: I, --- the total length of the tool.
The handles of the pliers should be clamped so that they can withstand torsion. The pliers or clamps should be able to withstand a torque of 5N·m without visible permanent deformation after unloading. 5.8.2 Tweezers
GB 18269--2000
The test is the same as 5.8.1a), and the force F = 10N is applied. There should be no permanent deformation after the test. 5.9 Locking test
Tools consisting of two or more parts shall be assembled according to the manufacturer's instructions. 5.9.1 Tools with spring steel balls
Assembly tools with spring steel balls shall be tested according to the following values. 6.3 mm square gear 4 N;
10 mm square gear 11 N;
12.5 mm square gear 30 N;
square gear greater than 12.5 mm 80 N, 5.9.2 Tools tightened with screws
When the screws are tightened, the test load used is 500 N. 5.9.3 Test methodWww.bzxZ.net
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Place the tool in a position so that the removal direction of the detachable parts is vertically downward, and gradually increase the load in the removal direction. The values specified in 5.9.1 and 5.9.2 are reached within 2 s and maintained for 1 min. If the assembled tool does not separate, the test is passed. 5.10 Durability test of marking
The marking on the tool can be rubbed with a wet cloth for 15 minutes, and then rubbed with a cloth soaked in ordinary alcohol for 15 minutes. After the above rubbing, the marking should still be clear.
6 Inspection rules
6.1 Type test
The type test procedure and test items are shown in Table 1. The number of samples for type test is 3 for each item. If one of the three samples fails, another 3 samples will be taken for retest. If one of them still fails, the test fails. Among all the items in the type test, if one item fails, the type test fails. 6.2 Sampling test
The sampling test items are shown in Table 1, and the sampling and judgment rules of the products are shown in Table 2. 6.3 Factory test
The routine test items for factory delivery are shown in Table 1, and each product should be subjected to factory test. Table 1 Test types and items
Test items
Appearance and dimension inspection
Mechanical impact test
Electrical test
Indentation test
Adhesion test of insulation coating
Flame retardant test
Mechanical test
Locking test
Durability test of marking
Type test
Note: “√\” indicates that the test is carried out, and “一” indicates that the test is not carried out. 6.4 Acceptance test
Test type
Sampling test
Factory test
Article No.
GB 18269—2000
The acceptance test items shall be determined by negotiation between the user and the manufacturer. Table 2 Sampling plan and judgment rules for sampling test Product quantity
16~50
51~150
151~500
501~3200
3201~3500
7 Marking, packaging, transportation and storage
7.1 Marking
Sampling quantity
Test passed
Number of unqualified products allowed
Each tool or tool component shall be as follows It is required to mark with eye-catching and durable marks: 7.1.1 Mark the place of origin (manufacturer name or trademark) on the insulating layer or metal part. 7.1.2 Mark the model, parameters, and manufacturing date (at least the last two digits of the year) on the insulating layer. Test failed
Number of unqualified products
7.1.3 There should be a sign on the insulating layer, which is a double triangle (see Figure 14). In Figure 14, "1000V" indicates the upper limit of the AC voltage for live working, and "93" indicates the year of manufacture. The height of letters and numbers shall not be less than 2mm, and the length of "x\ in the figure shall not be less than 3mm. The arrangement of symbols, letters and numbers is shown in Figure 14. 7.1.4 Tools designed for ultra-low temperatures (-40°C) should be marked with the letter "\C". 7.2 Packaging
The hand tool packaging box should indicate the factory name, address, trademark, product name, specifications, model, etc. The packaging box should be accompanied by a product manual, which includes: type description, inspection instructions, maintenance, storage, transportation, assembly and use instructions. 7.3 Transportation
Wooden packaging boxes or cardboard boxes should be used for transportation, and marked with "Do not expose to rain", " Keep away from moisture” and “Avoid heavy pressure” signs. 7.4 Storage
Hand tools should be properly stored in a dry, ventilated place, away from direct sunlight, free from corrosive and harmful substances, and should be kept at a certain distance from heat sources.
8 Quality assurance system
The manufacturer should use a quality assurance system that complies with the ISO9000 series. This quality assurance system should ensure that the product meets the requirements of the standard. If there is no such quality assurance system, the sampling test required by this standard shall be carried out. 687
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a—conductor part; b—working part; c—insulation; d—contact surfaceFig. 1 Schematic diagram of insulation of typical tools
Unit: mm
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a) Insulation of pliers
b) Insulation of knife
Unit: mm
a—insulated handle; b—handguard; c—working end (non-insulated); d—distance between the inner side of the handguard and the non-insulated partFig. 2 Schematic diagram of insulation of pliers and knife
GB18269--2000
l—total length of tweezers; g—length of handle; b—width of handguard; h—height of handguard; e—insulated part between handle, handguard and working endtu—non-insulated part of working endFig. 3 Insulation example of tweezers handle
iikAoNikAcaTo produce a blue flame of 20mm ± 2mm high. First, ignite and adjust the blue flame of 20mm ± 2mm high in a vertical position, then place the nozzle in the test position so that the axis of the flame is at right angles to the axis of the tool, as shown in Figure 11. The horizontal reference line 4 in the figure is the reference line for measuring the height of the flame. If different types of insulating materials are used in the same tool, the test should be carried out on each type of material. The flame is kept on the test piece for 10s and then removed. During the test, it must be ensured that there is no interference from the air flow. After removing the flame, observe the flame that continues to burn on the test piece for 20s. If the flame height on the test piece does not exceed 120mm within 20s, the test is passed.
5.8 Mechanical test
All types of coated insulated tools and insulated tools should meet the specified mechanical properties and requirements. 5.8.1 Pliers and clamps
These tools shall be subjected to the following tests
a) Bend test
As shown in Figure 12, a force F (N) is applied to the handle and maintained for 3 min. If the total length of the tool L < 100 mm, F = 0.5L (L in mm, F in N). If the total length of the tool L ≥ 100 mm, F = 50N. The test is passed if there is no damage to any part of the tool, no visible permanent deformation, and the ends of the handles do not touch each other. b) Torsion test
As shown in Figure 13.
The pliers are connected to the torque measuring device through a connecting piece. The connecting piece of the flat-head pliers is a steel piece with a width of 12 mm and a thickness of 3 mm. The connecting piece is inserted into the jaws by 6 mm ± 1 mm. The connecting piece of the round-head pliers has two central axis parallel holes or grooves, the diameter of which allows the nose of the pliers to be inserted into the jaws by a depth of 6 mm ± 1 mm. The edge of the hole or groove is rounded, and the hardness of the connecting part is at least HRC50. The handles of the pliers are clamped at points A and B, and the distance from the fulcrum of the pliers is b. The force applied is equal to the force F specified in the bending test. F (N) = 0.5L (mm) (but the maximum value is 50N) Where: I, --- the total length of the tool.
The handles of the pliers should be clamped so that they can withstand torsion. The pliers or clamps should be able to withstand a torque of 5N·m without visible permanent deformation after unloading. 5.8.2 Tweezers
GB 18269--2000
The test is the same as 5.8.1a), and the force F = 10N is applied. There should be no permanent deformation after the test. 5.9 Locking test
Tools consisting of two or more parts should be assembled according to the manufacturer's instructions. 5.9.1 Tools with spring steel balls
Assembly tools with spring steel balls shall be tested according to the following values. 6.3 mm square gear 4 N;
10 mm square gear 11 N;
12.5 mm square gear 30 N;
square gear greater than 12.5 mm 80 N, 5.9.2 Tools tightened with screws
In the case of screw tightening, the test load used is 500 N. 5.9.3 Test method
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Place the tool in a position so that the removal direction of the detachable part is vertically downward, and gradually increase the load in the removal direction, reaching the values specified in 5.9.1 and 5.9.2 within 2 s and maintaining it for 1 min. If the assembled tool does not separate, the test is passed. 5.10 Durability test of marking
The marking on the tool can be rubbed with a wet cloth for 15 minutes, and then rubbed with a cloth soaked in ordinary alcohol for 15 minutes. After the above rubbing, the marking should still be clear.
6 Inspection rules
6.1 Type test
The type test procedure and test items are shown in Table 1. The number of samples for type test is 3 for each item. If one of the three samples fails, another 3 samples will be taken for retest. If one of them still fails, the test fails. Among all the items in the type test, if one item fails, the type test fails. 6.2 Sampling test
The sampling test items are shown in Table 1, and the sampling and judgment rules of the products are shown in Table 2. 6.3 Factory test
The routine test items for factory delivery are shown in Table 1, and each product should be subjected to factory test. Table 1 Test types and items
Test items
Appearance and dimension inspection
Mechanical impact test
Electrical test
Indentation test
Adhesion test of insulation coating
Flame retardant test
Mechanical test
Locking test
Durability test of marking
Type test
Note: “√\” indicates that the test is carried out, and “一” indicates that the test is not carried out. 6.4 Acceptance test
Test type
Sampling test
Factory test
Article No.
GB 18269—2000
The acceptance test items shall be determined by negotiation between the user and the manufacturer. Table 2 Sampling plan and judgment rules for sampling test Product quantity
16~50
51~150
151~500
501~3200
3201~3500
7 Marking, packaging, transportation and storage
7.1 Marking
Sampling quantity
Test passed
Number of unqualified products allowed
Each tool or tool component shall be as follows It is required to mark with eye-catching and durable marks: 7.1.1 Mark the place of origin (manufacturer name or trademark) on the insulating layer or metal part. 7.1.2 Mark the model, parameters, and manufacturing date (at least the last two digits of the year) on the insulating layer. Test failed
Number of unqualified products
7.1.3 There should be a sign on the insulating layer, which is a double triangle (see Figure 14). In Figure 14, "1000V" indicates the upper limit of the AC voltage for live working, and "93" indicates the year of manufacture. The height of letters and numbers shall not be less than 2mm, and the length of "x\ in the figure shall not be less than 3mm. The arrangement of symbols, letters and numbers is shown in Figure 14. 7.1.4 Tools designed for ultra-low temperatures (-40°C) should be marked with the letter "\C". 7.2 Packaging
The hand tool packaging box should indicate the factory name, address, trademark, product name, specifications, model, etc. The packaging box should be accompanied by a product manual, which includes: type description, inspection instructions, maintenance, storage, transportation, assembly and use instructions. 7.3 Transportation
Wooden packaging boxes or cardboard boxes should be used for transportation, and marked with "Do not expose to rain", " Keep away from moisture” and “Avoid heavy pressure” signs. 7.4 Storage
Hand tools should be properly stored in a dry, ventilated place, away from direct sunlight, free from corrosive and harmful substances, and should be kept at a certain distance from heat sources.
8 Quality assurance system
The manufacturer should use a quality assurance system that complies with the ISO9000 series. This quality assurance system should ensure that the product meets the requirements of the standard. If there is no such quality assurance system, the sampling test required by this standard shall be carried out. 687
GB 18269-2000
a—conductor part; b—working part; c—insulation; d—contact surfaceFig. 1 Schematic diagram of insulation of typical tools
Unit: mm
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GB18269-2000
a) Insulation of pliers
b) Insulation of knife
Unit: mm
a—insulated handle; b—handguard; c—working end (non-insulated); d—distance between the inner side of the handguard and the non-insulated partFig. 2 Schematic diagram of insulation of pliers and knife
GB18269--2000
l—total length of tweezers; g—length of handle; b—width of handguard; h—height of handguard; e—insulated part between handle, handguard and working endtu—non-insulated part of working endFig. 3 Insulation example of tweezers handle
iikAoNikAcaTo produce a blue flame of 20mm ± 2mm high. First, ignite and adjust the blue flame of 20mm ± 2mm high in a vertical position, then place the nozzle in the test position so that the axis of the flame is at right angles to the axis of the tool, as shown in Figure 11. The horizontal reference line 4 in the figure is the reference line for measuring the height of the flame. If different types of insulating materials are used in the same tool, the test should be carried out on each type of material. The flame is kept on the test piece for 10s and then removed. During the test, it must be ensured that there is no interference from the air flow. After removing the flame, observe the flame that continues to burn on the test piece for 20s. If the flame height on the test piece does not exceed 120mm within 20s, the test is passed.
5.8 Mechanical test
All types of coated insulated tools and insulated tools should meet the specified mechanical properties and requirements. 5.8.1 Pliers and clamps
These tools shall be subjected to the following tests
a) Bend test
As shown in Figure 12, a force F (N) is applied to the handle and maintained for 3 min. If the total length of the tool L < 100 mm, F = 0.5L (L in mm, F in N). If the total length of the tool L ≥ 100 mm, F = 50N. The test is passed if there is no damage to any part of the tool, no visible permanent deformation, and the ends of the handles do not touch each other. b) Torsion test
As shown in Figure 13.
The pliers are connected to the torque measuring device through a connecting piece. The connecting piece of the flat-head pliers is a steel piece with a width of 12 mm and a thickness of 3 mm. The connecting piece is inserted into the jaws by 6 mm ± 1 mm. The connecting piece of the round-head pliers has two central axis parallel holes or grooves, the diameter of which allows the nose of the pliers to be inserted into the jaws by a depth of 6 mm ± 1 mm. The edge of the hole or groove is rounded, and the hardness of the connecting part is at least HRC50. The handles of the pliers are clamped at points A and B, and the distance from the fulcrum of the pliers is b. The force applied is equal to the force F specified in the bending test. F (N) = 0.5L (mm) (but the maximum value is 50N) Where: I, --- the total length of the tool.
The handles of the pliers should be clamped so that they can withstand torsion. The pliers or clamps should be able to withstand a torque of 5N·m without visible permanent deformation after unloading. 5.8.2 Tweezers
GB 18269--2000
The test is the same as 5.8.1a), and the force F = 10N is applied. There should be no permanent deformation after the test. 5.9 Locking test
Tools consisting of two or more parts should be assembled according to the manufacturer's instructions. 5.9.1 Tools with spring steel balls
Assembly tools with spring steel balls shall be tested according to the following values. 6.3 mm square gear 4 N;
10 mm square gear 11 N;
12.5 mm square gear 30 N;
square gear greater than 12.5 mm 80 N, 5.9.2 Tools tightened with screws
In the case of screw tightening, the test load used is 500 N. 5.9.3 Test method
KAoNiKAca
Place the tool in a position so that the removal direction of the detachable part is vertically downward, and gradually increase the load in the removal direction, reaching the values specified in 5.9.1 and 5.9.2 within 2 s and maintaining it for 1 min. If the assembled tool does not separate, the test is passed. 5.10 Durability test of marking
The marking on the tool can be rubbed with a wet cloth for 15 minutes, and then rubbed with a cloth soaked in ordinary alcohol for 15 minutes. After the above rubbing, the marking should still be clear.
6 Inspection rules
6.1 Type test
The type test procedure and test items are shown in Table 1. The number of samples for type test is 3 for each item. If one of the three samples fails, another 3 samples will be taken for retest. If one of them still fails, the test fails. Among all the items in the type test, if one item fails, the type test fails. 6.2 Sampling test
The sampling test items are shown in Table 1, and the sampling and judgment rules of the products are shown in Table 2. 6.3 Factory test
The routine test items for factory delivery are shown in Table 1, and each product should be subjected to factory test. Table 1 Test types and items
Test items
Appearance and dimension inspection
Mechanical impact test
Electrical test
Indentation test
Adhesion test of insulation coating
Flame retardant test
Mechanical test
Locking test
Durability test of marking
Type test
Note: “√\” indicates that the test is carried out, and “一” indicates that the test is not carried out. 6.4 Acceptance test
Test type
Sampling test
Factory test
Article No.
GB 18269—2000
The acceptance test items shall be determined by negotiation between the user and the manufacturer. Table 2 Sampling plan and judgment rules for sampling test Product quantity
16~50
51~150
151~500
501~3200
3201~3500
7 Marking, packaging, transportation and storage
7.1 Marking
Sampling quantity
Test passed
Number of unqualified products allowed
Each tool or tool component shall be as follows It is required to mark with eye-catching and durable marks: 7.1.1 Mark the place of origin (manufacturer name or trademark) on the insulating layer or metal part. 7.1.2 Mark the model, parameters, and manufacturing date (at least the last two digits of the year) on the insulating layer. Test failed
Number of unqualified products
7.1.3 There should be a sign on the insulating layer, which is a double triangle (see Figure 14). In Figure 14, "1000V" indicates the upper limit of the AC voltage for live working, and "93" indicates the year of manufacture. The height of letters and numbers shall not be less than 2mm, and the length of "x\ in the figure shall not be less than 3mm. The arrangement of symbols, letters and numbers is shown in Figure 14. 7.1.4 Tools designed for ultra-low temperatures (-40°C) should be marked with the letter "\C". 7.2 Packaging
The hand tool packaging box should indicate the factory name, address, trademark, product name, specifications, model, etc. The packaging box should be accompanied by a product manual, which includes: type description, inspection instructions, maintenance, storage, transportation, assembly and use instructions. 7.3 Transportation
Wooden packaging boxes or cardboard boxes should be used for transportation, and marked with "Do not expose to rain", " Keep away from moisture” and “Avoid heavy pressure” signs. 7.4 Storage
Hand tools should be properly stored in a dry, ventilated place, away from direct sunlight, free from corrosive and harmful substances, and should be kept at a certain distance from heat sources.
8 Quality assurance system
The manufacturer should use a quality assurance system that complies with the ISO9000 series. This quality assurance system should ensure that the product meets the requirements of the standard. If there is no such quality assurance system, the sampling test required by this standard shall be carried out. 687
GB 18269-2000
a—conductor part; b—working part; c—insulation; d—contact surfaceFig. 1 Schematic diagram of insulation of typical tools
Unit: mm
TrKAoNikAca
GB18269-2000
a) Insulation of pliers
b) Insulation of knife
Unit: mm
a—insulated handle; b—handguard; c—working end (non-insulated); d—distance between the inner side of the handguard and the non-insulated partFig. 2 Schematic diagram of insulation of pliers and knife
GB18269--2000
l—total length of tweezers; g—length of handle; b—width of handguard; h—height of handguard; e—insulated part between handle, handguard and working endtu—non-insulated part of working endFig. 3 Insulation example of tweezers handle
iikAoNikAca5L (L in mm, F in N). If the total length of the tool L ≥ 100mm, then F = 50N. If there is no damage to any part of the tool, no visible permanent deformation, and the ends of the handles do not touch each other, the test is passed. b) Torsion test
As shown in Figure 13.
The hand pliers are connected to the torque measuring device through a connector. The connector of the flat-head pliers is a steel part with a width of 12mm and a thickness of 3mm. The connector is inserted into the jaws by 6mm ± 1mm. The connector of the round-head pliers has two central axis parallel holes or grooves, the diameter of which allows the nose of the pliers to be inserted to a depth of 6mm ± 1mm. The edges of the holes or grooves are rounded, and the hardness of the connector is at least HRC50. The handles A and B of the hand pliers are clamped at a distance b from the fulcrum of the pliers, and the force applied is equal to the force F specified in the bending test. F (N) = 0.5L (mm) (but the maximum value is 50N) where: I, --- the total length of the tool.
The handles of the pliers should be clamped so that they can withstand torque. Pliers or clamps should be able to withstand a torque of 5N·m and there should be no visible permanent deformation after unloading. 5.8.2 Tweezers
GB 18269--2000
The test is the same as 5.8.1a), with a force of F=10N applied. There should be no permanent deformation after the test. 5.9 Locking test
Tools composed of two or more parts should be assembled according to the manufacturer's instructions. 5.9.1 Tools with spring steel balls
Assemblyable tools with spring steel balls should be tested according to the following values. 6.3mm square gear 4N;
10 mm square gear 11N;
12.5mm square gear 30N;
greater than 12.5 mm square gear 80 N, 5.9.2 Tools for screw tightening
When the screws are tightened, the test load used is 500N. 5.9.3 Test method
KAoNiKAca
Place the tool in a position where the disassembly direction of the detachable part is vertically downward, and gradually increase the load along the disassembly direction. The load reaches the values specified in 5.9.1 and 5.9.2 within 2s and is maintained for 1min. If the assembled tool does not separate, the test is passed. 5.10 Durability test of marking
The marking on the tool can be rubbed with a wet cloth for 15min, and then rubbed with a cloth soaked in ordinary alcohol for 15min. After the above rubbing, the marking should still be clear.
6 Inspection rules
6.1 Type test
The type test procedure and test items are shown in Table 1. The number of samples for type test is 3 for each item. If one of the three samples fails, another 3 samples are taken for testing. If one of them still fails, the test fails. Among all the items in the type test, if one item fails, the type test fails. 6.2 Sampling test
The sampling test items are shown in Table 1, and the sampling and judgment rules of the products are shown in Table 2. 6.3 Factory test
The routine factory test items are shown in Table 1, and each product should be subjected to factory test. Table 1 Test types and items
Test items
Appearance and dimension inspection
Mechanical impact test
Electrical test
Indentation test
Adhesion test of insulation coating
Flame retardant test
Mechanical test
Locking test
Durability test of marking
Type test
Note: “√\” indicates that the test is carried out, and “一” indicates that the test is not carried out. 6.4 Acceptance test
Test type
Sampling test
Factory test
Article No.
GB 18269—2000
The acceptance test items shall be determined by negotiation between the user and the manufacturer. Table 2 Sampling plan and judgment rules for sampling test Product quantity
16~50
51~150
151~500
501~3200
3201~3500
7 Marking, packaging, transportation and storage
7.1 Marking
Sampling quantity
Test passed
Number of unqualified products allowed
Each tool or tool component shall be as follows It is required to mark with eye-catching and durable marks: 7.1.1 Mark the place of origin (manufacturer name or trademark) on the insulating layer or metal part. 7.1.2 Mark the model, parameters, and manufacturing date (at least the last two digits of the year) on the insulating layer. Test failed
Number of unqualified products
7.1.3 There should be a sign on the insulating layer, which is a double triangle (see Figure 14). In Figure 14, "1000V" indicates the upper limit of the AC voltage for live working, and "93" indicates the year of manufacture. The height of letters and numbers shall not be less than 2mm, and the length of "x\ in the figure shall not be less than 3mm. The arrangement of symbols, letters and numbers is shown in Figure 14. 7.1.4 Tools designed for ultra-low temperatures (-40°C) should be marked with the letter "\C". 7.2 Packaging
The hand tool packaging box should indicate the factory name, address, trademark, product name, specifications, model, etc. The packaging box should be accompanied by a product manual, which includes: type description, inspection instructions, maintenance, storage, transportation, assembly and use instructions. 7.3 Transportation
Wooden packaging boxes or cardboard boxes should be used for transportation, and marked with "Do not expose to rain", " Keep away from moisture” and “Avoid heavy pressure” signs. 7.4 Storage
Hand tools should be properly stored in a dry, ventilated place, away from direct sunlight, free from corrosive and harmful substances, and should be kept at a certain distance from heat sources.
8 Quality assurance system
The manufacturer should use a quality assurance system that complies with the ISO9000 series. This quality assurance system should ensure that the product meets the requirements of the standard. If there is no such quality assurance system, the sampling test required by this standard shall be carried out. 687
GB 18269-2000
a—conductor part; b—working part; c—insulation; d—contact surfaceFig. 1 Schematic diagram of insulation of typical tools
Unit: mm
TrKAoNikAca
GB18269-2000
a) Insulation of pliers
b) Insulation of knife
Unit: mm
a—insulated handle; b—handguard; c—working end (non-insulated); d—distance between the inner side of the handguard and the non-insulated partFig. 2 Schematic diagram of insulation of pliers and knife
GB18269--2000
l—total length of tweezers; g—length of handle; b—width of handguard; h—height of handguard; e—insulated part between handle, handguard and working endtu—non-insulated part of working endFig. 3 Insulation example of tweezers handle
iikAoNikAca5L (L in mm, F in N). If the total length of the tool L ≥ 100mm, then F = 50N. If there is no damage to any part of the tool, no visible permanent deformation, and the ends of the handles do not touch each other, the test is passed. b) Torsion test
As shown in Figure 13.
The hand pliers are connected to the torque measuring device through a connector. The connector of the flat-head pliers is a steel part with a width of 12mm and a thickness of 3mm. The connector is inserted into the jaws by 6mm ± 1mm. The connector of the round-head pliers has two central axis parallel holes or grooves, the diameter of which allows the nose of the pliers to be inserted to a depth of 6mm ± 1mm. The edges of the holes or grooves are rounded, and the hardness of the connector is at least HRC50. The handles A and B of the hand pliers are clamped at a distance b from the fulcrum of the pliers, and the force applied is equal to the force F specified in the bending test. F (N) = 0.5L (mm) (but the maximum value is 50N) where: I, --- the total length of the tool.
The handles of the pliers should be clamped so that they can withstand torque. Pliers or clamps should be able to withstand a torque of 5N·m and there should be no visible permanent deformation after unloading. 5.8.2 Tweezers
GB 18269--2000
The test is the same as 5.8.1a), with a force of F=10N applied. There should be no permanent deformation after the test. 5.9 Locking test
Tools composed of two or more parts should be assembled according to the manufacturer's instructions. 5.9.1 Tools with spring steel balls
Assemblyable tools with spring steel balls should be tested according to the following values. 6.3mm square gear 4N;
10 mm square gear 11N;
12.5mm square gear 30N;
greater than 12.5 mm square gear 80 N, 5.9.2 Tools for screw tightening
When the screws are tightened, the test load used is 500N. 5.9.3 Test method
KAoNiKAca
Place the tool in a position where the disassembly direction of the detachable part is vertically downward, and gradually increase the load along the disassembly direction. The load reaches the values specified in 5.9.1 and 5.9.2 within 2s and is maintained for 1min. If the assembled tool does not separate, the test is passed. 5.10 Durability test of marking
The marking on the tool can be rubbed with a wet cloth for 15min, and then rubbed with a cloth soaked in ordinary alcohol for 15min. After the above rubbing, the marking should still be clear.
6 Inspection rules
6.1 Type test
The type test procedure and test items are shown in Table 1. The number of samples for type test is 3 for each item. If one of the three samples fails, another 3 samples are taken for testing. If one of them still fails, the test fails. Among all the items in the type test, if one item fails, the type test fails. 6.2 Sampling test
The sampling test items are shown in Table 1, and the sampling and judgment rules of the products are shown in Table 2. 6.3 Factory test
The routine factory test items are shown in Table 1, and each product should be subjected to factory test. Table 1 Test types and items
Test items
Appearance and dimension inspection
Mechanical impact test
Electrical test
Indentation test
Adhesion test of insulation coating
Flame retardant test
Mechanical test
Locking test
Durability test of marking
Type test
Note: “√\” indicates that the test is carried out, and “一” indicates that the test is not carried out. 6.4 Acceptance test
Test type
Sampling test
Factory test
Article No.
GB 18269—2000
The acceptance test items shall be determined by negotiation between the user and the manufacturer. Table 2 Sampling plan and judgment rules for sampling test Product quantity
16~50
51~150
151~500
501~3200
3201~3500
7 Marking, packaging, transportation and storage
7.1 Marking
Sampling quantity
Test passed
Number of unqualified products allowed
Each tool or tool component shall be as follows It is required to mark with eye-catching and durable marks: 7.1.1 Mark the place of origin (manufacturer name or trademark) on the insulating layer or metal part. 7.1.2 Mark the model, parameters, and manufacturing date (at least the last two digits of the year) on the insulating layer. Test failed
Number of unqualified products
7.1.3 There should be a sign on the insulating layer, which is a double triangle (see Figure 14). In Figure 14, "1000V" indicates the upper limit of the AC voltage for live working, and "93" indicates the year of manufacture. The height of letters and numbers shall not be less than 2mm, and the length of "x\ in the figure shall not be less than 3mm. The arrangement of symbols, letters and numbers is shown in Figure 14. 7.1.4 Tools designed for ultra-low temperatures (-40°C) should be marked with the letter "\C". 7.2 Packaging
The hand tool packaging box should indicate the factory name, address, trademark, product name, specifications, model, etc. The packaging box should be accompanied by a product manual, which includes: type description, inspection instructions, maintenance, storage, transportation, assembly and use instructions. 7.3 Transportation
Wooden packaging boxes or cardboard boxes should be used for transportation, and marked with "Do not expose to rain", " Keep away from moisture” and “Avoid heavy pressure” signs. 7.4 Storage
Hand tools should be properly stored in a dry, ventilated place, away from direct sunlight, free from corrosive and harmful substances, and should be kept at a certain distance from heat sources.
8 Quality assurance system
The manufacturer should use a quality assurance system that complies with the ISO9000 series. This quality assurance system should ensure that the product meets the requirements of the standard. If there is no such quality assurance system, the sampling test required by this standard shall be carried out. 687
GB 18269-2000
a—conductor part; b—working part; c—insulation; d—contact surfaceFig. 1 Schematic diagram of insulation of typical tools
Unit: mm
TrKAoNikAca
GB18269-2000
a) Insulation of pliers
b) Insulation of knife
Unit: mm
a—insulated handle; b—handguard; c—working end (non-insulated); d—distance between the inner side of the handguard and the non-insulated partFig. 2 Schematic diagram of insulation of pliers and knife
GB18269--2000
l—total length of tweezers; g—length of handle; b—width of handguard; h—height of handguard; e—insulated part between handle, handguard and working endtu—non-insulated part of working endFig. 3 Insulation example of tweezers handle
iikAoNikAca10 Durability test of marking
The marking on the tool can be rubbed with a wet cloth for 15 minutes, and then rubbed with a cloth soaked in ordinary alcohol for 15 minutes. After the above rubbing, the marking should still be clear.
6 Inspection rules
6.1 Type test
The type test procedure and test items are shown in Table 1. The number of samples for type test is 3 for each item. If one of the three samples fails, another 3 samples will be taken for retest. If one of them still fails, the test fails. Among all the items in the type test, if one item fails, the type test fails. 6.2 Sampling test
The sampling test items are shown in Table 1, and the sampling and judgment rules of the products are shown in Table 2. 6.3 Factory test
The routine test items for factory delivery are shown in Table 1, and each product should be subjected to factory test. Table 1 Test types and items
Test items
Appearance and dimension inspection
Mechanical impact test
Electrical test
Indentation test
Adhesion test of insulation coating
Flame retardant test
Mechanical test
Locking test
Durability test of marking
Type test
Note: “√\” indicates that the test is carried out, and “一” indicates that the test is not carried out. 6.4 Acceptance test
Test type
Sampling test
Factory test
Article No.
GB 18269—2000
The acceptance test items shall be determined by negotiation between the user and the manufacturer. Table 2 Sampling plan and judgment rules for sampling test Product quantity
16~50
51~150
151~500
501~3200
3201~3500
7 Marking, packaging, transportation and storage
7.1 Marking
Sampling quantity
Test passed
Number of unqualified products allowed
Each tool or tool component shall be as follows It is required to mark with eye-catching and durable marks: 7.1.1 Mark the place of origin (manufacturer name or trademark) on the insulating layer or metal part. 7.1.2 Mark the model, parameters, and manufacturing date (at least the last two digits of the year) on the insulating layer. Test failed
Number of unqualified products
7.1.3 There should be a sign on the insulating layer, which is a double triangle (see Figure 14). In Figure 14, "1000V" indicates the upper limit of the AC voltage for live working, and "93" indicates the year of manufacture. The height of letters and numbers shall not be less than 2mm, and the length of "x\ in the figure shall not be less than 3mm. The arrangement of symbols, letters and numbers is shown in Figure 14. 7.1.4 Tools designed for ultra-low temperatures (-40°C) should be marked with the letter "\C". 7.2 Packaging
The hand tool packaging box should indicate the factory name, address, trademark, product name, specifications, model, etc. The packaging box should be accompanied by a product manual, which includes: type description, inspection instructions, maintenance, storage, transportation, assembly and use instructions. 7.3 Transportation
Wooden packaging boxes or cardboard boxes should be used for transportation, and marked with "Do not expose to rain", " Keep away from moisture” and “Avoid heavy pressure” signs. 7.4 Storage
Hand tools should be properly stored in a dry, ventilated place, away from direct sunlight, free from corrosive and harmful substances, and should be kept at a certain distance from heat sources.
8 Quality assurance system
The manufacturer should use a quality assurance system that complies with the ISO9000 series. This quality assurance system should ensure that the product meets the requirements of the standard. If there is no such quality assurance system, the sampling test required by this standard shall be carried out. 687
GB 18269-2000
a—conductor part; b—working part; c—insulation; d—contact surfaceFig. 1 Schematic diagram of insulation of typical tools
Unit: mm
TrKAoNikAca
GB18269-2000
a) Insulation of pliers
b) Insulation of knife
Unit: mm
a—insulated handle; b—handguard; c—working end (non-insulated); d—distance between the inner side of the handguard and the non-insulated partFig. 2 Schematic diagram of insulation of pliers and knife
GB18269--2000
l—total length of tweezers; g—length of handle; b—width of handguard; h—height of handguard; e—insulated part between handle, handguard and working endtu—non-insulated part of working endFig. 3 Insulation example of tweezers handle
iikAoNikAca10 Durability test of marking
The marking on the tool can be rubbed with a wet cloth for 15 minutes, and then rubbed with a cloth soaked in ordinary alcohol for 15 minutes. After the above rubbing, the marking should still be clear.
6 Inspection rules
6.1 Type test
The type test procedure and test items are shown in Table 1. The number of samples for type test is 3 for each item. If one of the three samples fails, another 3 samples will be taken for retest. If one of them still fails, the test fails. Among all the items in the type test, if one item fails, the type test fails. 6.2 Sampling test
The sampling test items are shown in Table 1, and the sampling and judgment rules of the products are shown in Table 2. 6.3 Factory test
The routine test items for factory delivery are shown in Table 1, and each product should be subjected to factory test. Table 1 Test types and items
Test items
Appearance and dimension inspection
Mechanical impact test
Electrical test
Indentation test
Adhesion test of insulation coating
Flame retardant test
Mechanical test
Locking test
Durability test of marking
Type test
Note: “√\” indicates that the test is carried out, and “一” indicates that the test is not carried out. 6.4 Acceptance test
Test type
Sampling test
Factory test
Article No.
GB 18269—2000
The acceptance test items shall be determined by negotiation between the user and the manufacturer. Table 2 Sampling plan and judgment rules for sampling test Product quantity
16~50
51~150
151~500
501~3200
3201~3500
7 Marking, packaging, transportation and storage
7.1 Marking
Sampling quantity
Test passed
Number of unqualified products allowed
Each tool or tool component shall be as follows It is required to mark with eye-catching and durable marks: 7.1.1 Mark the place of origin (manufacturer name or trademark) on the insulating layer or metal part. 7.1.2 Mark the model, parameters, and manufacturing date (at least the last two digits of the year) on the insulating layer. Test failed
Number of unqualified products
7.1.3 There should be a sign on the insulating layer, which is a double triangle (see Figure 14). In Figure 14, "1000V" indicates the upper limit of the AC voltage for live working, and "93" indicates the year of manufacture. The height of letters and numbers shall not be less than 2mm, and the length of "x\ in the figure shall not be less than 3mm. The arrangement of symbols, letters and numbers is shown in Figure 14. 7.1.4 Tools designed for ultra-low temperatures (-40°C) should be marked with the letter "\C". 7.2 Packaging
The hand tool packaging box should indicate the factory name, address, trademark, product name, specifications, model, etc. The packaging box should be accompanied by a product manual, which includes: type description, inspection instructions, maintenance, storage, transportation, assembly and use instructions. 7.3 Transportation
Wooden packaging boxes or cardboard boxes should be used for transportation, and marked with "Do not expose to rain", " Keep away from moisture” and “Avoid heavy pressure” signs. 7.4 Storage
Hand tools should be properly stored in a dry, ventilated place, away from direct sunlight, free from corrosive and harmful substances, and should be kept at a certain distance from heat sources.
8 Quality assurance system
The manufacturer should use a quality assurance system that complies with the ISO9000 series. This quality assurance system should ensure that the product meets the requirements of the standard. If there is no such quality assurance system, the sampling test required by this standard shall be carried out. 687
GB 18269-2000
a—conductor part; b—working part; c—insulation; d—contact surfaceFig. 1 Schematic diagram of insulation of typical tools
Unit: mm
TrKAoNikAca
GB18269-2000
a) Insulation of pliers
b) Insulation of knife
Unit: mm
a—insulated handle; b—handguard; c—wor
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