GB 17202-1997 Safety requirements for industrial electric washing machines
Some standard content:
GB 17202-1997
This standard is not equivalent to the American Underwriters Laboratories UL1206-1994 "Industrial Electric Washing Machine". There is no safety standard for this product in the International Electrotechnical Commission (IEC) standard system. UL1.1206-1991 is the current advanced foreign standard. Through this standard, the product's requirements in structure, design, material, performance and process are guaranteed to ensure the safety of people and the whole machine, and gradually enter the international advanced level to meet the requirements of trade and exchange. This standard has the following differences from the UL1206-1994 standard: a) In the UL1206-1994 standard, the leakage current is 5mA: the insulation resistance test environment humid air temperature is (3212)r, the relative humidity is (80+5)%, the insulation resistance value is not less than 50000, and the test voltage for the insulation withstand voltage of 250V or less equipment is 1000V. These requirements and indicators are low, b) This standard is adjusted according to the actual situation in my country and the requirements of GB4706.1-92 "General Safety Requirements for Household and Similar Electrical Appliances" (L condensation current is 3.5mA; ② The humid air temperature of the insulation resistance test environment is (402)℃, the relative humidity is (93±)%, and the insulation resistance value is not less than 2MQ③ The test voltage for the insulation withstand voltage of equipment of 250V or less is 1500V, so that the requirements and indicators of this standard are higher than UL1206.
In this standard, the measurement unit system of the imperial system and its approximate values specified in the source UL standard is cancelled, and the unified legal measurement unit system of my country is adopted, and the material specifications are selected in accordance with my country's national standards. Some take the value corresponding to the source value and use the rounding method. In this standard, cancel The national electrical specifications and component standards in the original UI. standard shall adopt the corresponding national standards and industry standards of my country.
From the date of implementation, this standard shall also be implemented in accordance with JB4305.2--92 "Safety Requirements for Industrial Washing Machines". This standard is proposed by the Ministry of Machinery Industry of the People's Republic of China. This standard was issued by the Guangzhou Electrical Science Research Institute of the Ministry of Machinery Industry and is the responsible drafting unit of this standard; the Guangzhou Electrical Science Research Institute of the Ministry of Machinery Industry, the participating drafting units of this standard: Shanghai Xiangyuan Machinery Co., Ltd., Shanghai Shenxing Paint Washing Equipment Co., Ltd., Zhangjiagang Washing Machine Core Factory, Guangzhou Sancai Washing Equipment Co., Ltd., Shandong Xiaoya Group Industrial Washing Machine Factory, Shanghai Sanling Industry Washing Equipment Factory, Shanghai Jianxin Washing Machinery Factory, and Gonghai Hangxing Machinery (Group) Co., Ltd.
This standard mainly starts Drafting person: Sun Xianglin.
Participants in drafting this standard: He Weien, Shuai Guanlin, Tang Jinlong, Shi Xuecheng, Bai Jianxi, Luo Guangzhi. This standard is entrusted to the Guangzhou Electric Science Research Institute of the Ministry of Machinery Industry for interpretation. ..comGB17202—1997
UL Foreword
A. This standard specifies the basic requirements for a class of products listed in the "scope of application" of this standard covered by the follow-up service of Underwriters Laboratories, Inc. of the United States. These requirements are based on reasonable technical principles for research, testing, records obtained from field experience, and adjustments to problems in the manufacturing, installation and use processes. These appraisals are based on information provided by manufacturers, users, inspection departments and other professionals, and the results of discussions with them. When more When experience, investigation and research show that these requirements must or are necessary to be modified, they will be modified. B. Manufacturers' compliance with the requirements of this standard is one of the prerequisites for their products to continue to be listed and use the L mark. C. A product that meets the requirements of this standard but is found to have some other performance that does not meet the safety level to be achieved by this standard during inspection and testing may be judged as not meeting the requirements of this standard. D. A product that uses materials or has a structure different from that specified in this standard may still be inspected and tested according to the intention of the requirements of this standard. If it is confirmed that there is no substantial difference, it may also be judged to meet the requirements of this standard. E. In the process of performing its duties in accordance with its authority, UL does not assume or promise any responsibility to the manufacturer or any other party. UL's opinions and conclusions represent professional and technical judgments. These judgments are made after due consideration of the necessary conditions for actual operation and the level of technology when this standard was compiled. UL shall not be responsible for anyone who uses or relies on this standard. UL shall not be liable for damages caused by the use, interpretation or reliance on this standard, or for damages caused by this standard, including direct and indirect damages. Many of the tests required by the F.L.I. standard are inherently dangerous. Therefore, appropriate protective measures should be taken for personal and property protection when conducting such tests.
1 Scope of application
National Standard of the People's Republic of China
Safety requirements for electric commercial clothes-washing equipment
Safety requirerments for electric commercial clothes-washing equipment1. 1 This standard applies to commercial electric clothes-washing equipment. GB17202-1997
1.2 This standard does not apply to clothes dryers, coin-operated laundry equipment, irons, ironing machines, water heaters, water softeners, washing machines, clothes finishing equipment or other equipment with other specifications.
1.3 Equipment and accessories for field wiring shall be evaluated in accordance with the requirements of this standard. 1.4 To ensure user safety, when the product has new characteristics, features, components, material systems that are different from those specified in this standard, or the product involves risks such as fire, electric shock or casualties, it must be evaluated in accordance with the requirements of this standard for components and end products. 2 Reference 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 1002-1.996 Types, basic parameters and dimensions of single-phase plugs and sockets for household and similar purposes GH1003-80 Types, basic parameters and dimensions of three-phase plugs and sockets GB12350-90 Safety requirements for small power motors GB13232-91 General rules for thermal protectors for rotating motors (eg VIF C34-11-3: 1981) GB11711-93 General safety requirements for small and medium-sized rotating motors (neq IEC34-1) CGB2099.1-1996 Plugs and sockets for household and similar purposes Part I: General requirements (cg VIEC884-1: 1994) GB 1706.1-1992 General safety requirements for household and similar electrical appliances (idt IEC 335-1;1976)GB/T411-93 Oval printed and dyed cloth
GB/T3667-93 AC motor capacitors (neqIEC252.1975)GB5023.5-1997 Vinyl chloride insulated cables with rated voltages of 450/750V and below Part 5: Flexible cables (cords) (neqIEC 227:1979)
JB/T 1601-93
3 Rubber insulated fixed digital memory wires with rated voltages of 300/500VJB/T2379--93 Metal tubular heating elementsJB/T4305.1-92 Technical conditions for industrial washing machines3 Definitions
This standard adopts the following definitions.
3.1 In this standard, it is specifically noted that the requirements are applicable to a specific level of equipment, which means that they are only applicable to the requirements of that level of equipment. Requirements that are not specifically noted, or that use the word "equipment", are requirements that apply to all levels of equipment. 3.2 In this standard, specific requirements applicable to a particular piece of equipment take precedence over the corresponding requirements applicable to all equipment. 3.3 Wall-mounted equipment is equipment that is permanently installed on the wall of a cabinet or other vertical surface of a building. Approved by the State Administration of Technical Supervision on December 30, 1997 and implemented on October 1, 1998
CB 17202-1997
3.4 Recessed equipment is equipment that is supported by the ground and has its back adjacent to a wall: or its sides adjacent to a wall, cabinet or another piece of equipment. If the structure permits, a countertop may be used to cover the equipment and its adjacent cabinets and equipment. Recessed equipment is not intended to be permanently fixed to the building and connected to adjacent cabinets or equipment. 3.5 Equipment may be considered to be manually controlled if one or more of the following conditions are met: a) If no manual control is required during a complete operating cycle. b) If during any operating cycle, the motor can be stopped and restarted once or more times: C) If after power is turned on.The motor starts normally or starts after a certain delay. d) If during any operating cycle, the automatic change of the machine load will reduce the speed of the motor enough to reconnect the starting winding to the power circuit.
Note: A complete operating cycle means that the rated dry test volume is placed in the equipment, and the equipment starts from starting, completes washing, rinsing, dehydration, and removes the test volume. 3.6 Equipment with two or more motors can be considered to be automatically controlled if the following conditions are met: a) One or more motors are controlled according to any of the conditions specified in 3.5, and b) At least one motor is not controlled according to any of the conditions specified in 3.5. 4 Components
4.1 Except as stated in 4.2, product components within the scope of this standard shall comply with the requirements of the corresponding standards for that component. 4.2 Components do not need to comply with the following specific requirements: a) Requirements involving characteristics or features that are not required when the component is used in products within the scope of this standard; or b) Requirements that are replaced by another requirement of this standard. 4.3 Components are used in accordance with their rated conditions of use. 4.4 Special components refer to components with incomplete structural characteristics or limited performance. Such special components can only be used under specified conditions, such as within a certain specified degree, and can only be used under their specific conditions. 5 Units of measurement
5.1 The units of measurement of this standard adopt legal units of measurement. 6 Accessories connected on site
6.1 Requirements in 6.2~6.9 apply to accessories installed or connected to the equipment for the purpose of changing or supplementing the function of the equipment or accessories. 6.2 Any accessories that can be installed on the equipment in the field shall be constructed so that they will not cause fire, electric shock or personal injury when used. 6.3 The installation of accessories installed by the user shall be limited to those that can be completed with non-universal or special sockets or plug-in connectors. 6.4 If accessories are connected to the terminals by wiring connectors, they shall be installed by a certified electrician or maintenance personnel. 6.5 Accessories that require field wiring shall be equipped with means for connection to the power circuit of the equipment as specified in 11.1.1. 6.6 Equipment equipped with a pre-connected distributor or similar component shall have a circuit that can send program control signals to the distributor. 6.7 It is not allowed to rearrange components or wiring, cut or twist wires or install by welding on site. 6.8 As one of the assessment contents, accessories should be tested and installed to determine: their installation is feasible; their installation instructions are detailed and correct; when using accessories, they will not cause fire, electric shock or personal injury. 6.9 Equipment connected to the installation accessories on site should be marked according to the applicable provisions of 50.1 and 50.23 to 50.25. Adoption instructions:
Source UI There is no such note in the standard.
7 Frame and enclosure
GB 17202—1997
7.1 The equipment should be shaped and assembled so that it has sufficient strength and rigidity to withstand the usual improper use. It will not cause loosening, displacement, reduction of clearance, or other serious failures due to its total or partial damage, nor will it cause fire, electric shock or personal injury. 7.2 The enclosure should be made of materials that have been proven to meet the requirements of its use. It should be able to contain all electrical parts except the power cord that may cause fire, electric shock or personal injury under any use conditions. 7.3 The non-metallic materials used should be evaluated for their compliance: a) resistance to mechanical damage!
b) impact resistance
c) moisture absorption resistance:
d) flame resistance, and
) the ability of the material to withstand temperature deformation under normal and abnormal use conditions. 7.4 The thickness of the flat surface with reinforcing ribs shall not be less than the following values: wrought metal 3.2mm; wrought iron 2.4mm; cast metal 2.0mm
Exception: If the surface is in the following conditions, the metal thickness may be reduced, but shall not be less than 2.4mm, 1.4mm and 1.2mm respectively
a) curved, or fetal, or strengthened by other methods to the same mechanical strength as required or b) the shape and size can provide the same mechanical strength as required. 7.5 The outer shell made of metal plate shall be evaluated according to the purpose of the whole machine from the aspects of size, shape and thickness of metal plate to meet the use requirements.
7.6 The minimum thickness of the outer shell made of metal plate is 0.7mm for steel plate; 0.9mm for aluminum plate; and 0.8mm for copper plate.
Exception, this requirement does not apply to the surface with smaller area or curved surface or strengthened by other methods. 7.7 Where the power conductor enters the enclosure, the thickness of the metal plate shall not be less than 0.8 mm. The thickness of the zinc plate shall not be less than 0.9 mm, the thickness of the aluminum plate shall not be less than 1.1 mm, and the thickness of the copper plate shall not be less than 1.0 mm. 7.8 Freestanding (unsupported) or built-in automatic equipment shall have protection to prevent molten metal, burning insulating material, or similar flammable substances from falling onto flammable surfaces, including the supporting surfaces of the equipment. This requirement does not apply to the supporting surfaces of the following equipment: a) It is permanently bolted to an uncovered concrete floor; b) It is marked as specified in 50.26, and c) It is provided with installation instructions that include warning notices that meet the requirements of 50.27. 7.9 Non-burnable partitions must be used under the following locations to comply with the requirements of 7.8: a) Under the motor, except that: 1) The motor or equipment structure provides protection equivalent to such partitions; 2) The protection provided to the motor is such that when the motor is energized under each of the following fault conditions, no burning insulation or molten metal will fall onto the surface supporting the equipment! 1 Disconnection of the main winding:
1 Disconnection of the starting winding,
Ⅱ Short circuit of the starting switch, and
I Short circuit of the capacitor of the split-phase capacitor motor - the short circuit occurs before the motor is energized and the rotor is blocked, or 3) The motor is also equipped with a temperature and current sensitive thermal protector that can prevent the motor mirror from exceeding 125°C under maximum load. This maximum load is the load that can operate the motor without cycling the protector and will not cause the temperature to exceed 150°C when the motor rotor is blocked.
GB 17202 1997
b) Except when the conductor is a chloroprene rubber insulated conductor or a thermoplastic insulated conductor. 7.10 In addition, switches, relays, electric coils or similar components must be completely closed to meet the requirements of 7.8. Exception 1: The grounding terminal of switches, relays, electric coils or similar components does not need to be closed. Exception 2: If the malfunction of the component will not cause a fire, it does not need to be closed. Exception 3: If there is no opening at the bottom of the equipment casing, it does not need to be closed. 7.11 The partition mentioned in 7.9 should be in a horizontal state, and its position should be as shown in Figure 1. In addition, the area of the partition should comply with the provisions of Figure 1. A-If the component is not otherwise blocked by the partition, the partition should block the entire component. If a part of the component is blocked by its casing or the like, the partition should block the part that is not blocked during operation. - The projection of the component line on the water surface.
Draw the minimum area of the partition. The oblique line is always: 1) the tangent of the edge;
2) the angle with the plumb line is 5;
3) the area of the orientation skin on the horizontal plane is the minimum area of the horizontal position of the two plates. This area is the internal area of the mountain drawn by the intersection of the oblique line C and the horizontal plane of the partition. The extension of the position of the partition in Figure 1 is limited to
7.127.9. If drainage holes, ventilation holes, etc. are opened in the partitions described in 7.9, and these holes will not allow molten metal, burning insulation materials, etc. to fall onto flammable materials, then these holes are allowed. 8 Accessibility of uninsulated live parts and film-coated wires 8.1 To reduce the risk of electric shock due to accidental contact with uninsulated live parts or film-coated wires, the holes in the outer bracket shall comply with the following requirements a) or b):
a) For holes with a size (see 8.5) less than 25.0 mm, it shall not be possible to magnetically contact uninsulated live parts or film-coated wires using the test specimen shown in Figure 2.
h) For holes with a size of 25.0 mm or more, the distance between the uninsulated live parts or film-coated wires and the hole shall comply with the provisions of Table 1.
Exception: If the integral housing of the motor meets the requirements of 8.2, the motor need not comply with the above requirements. a) 8.5.
GB 17202—1997
Table 1 Minimum allowable distance between a hole and parts that may cause electric shock hazards (small size of hole) (u) between 19.0mm and 51.0mm. The value of the minimum distance in the table is determined by interpolation. c) Any size less than 25.0mm is only applicable to motors. d) Greater than 54.0mm, but not more than 152.0mm. 8.2 For integral enclosures of motors described in the exceptions to 8.1: Minimum distance between hole and part
a) The size of the hole (see 8.5) may be less than 19.0 mm if the following conditions apply: 1) The film-coated wire cannot be touched by the test specimen shown in Figure 4; 2) the uninsulated live parts of the motor cannot be touched by the test specimen shown in Figure 5; and 3) the uninsulated live parts of the motor cannot be touched by the test specimen shown in Figure 3. b) This test is acceptable if the distance between uninsulated live parts or film-coated wire and the minimum size of the hole of 19.0 mm or more is as specified in Table 1. The test specimens described in 8.1 and 8.2 and shown in Figures 2, 3, 4, and 5 shall be inserted to any depth allowed by the hole and shall be rotated or turned a certain angle before, during, and after being inserted into the hole to any position necessary to inspect the enclosure. The test specimens shown in Figures 2 and 5 shall be inserted in any possible orientation1 and, if necessary, the orientation shall be changed after the test specimen has been inserted into the hole. 8.4 The test specimens described in 8.1 and 8.2 shall be used as instruments for determining the accessibility provided by the hole and not as instruments for determining the strength of the material. This allows only the minimum force required to determine the accessibility of the hole to be applied to the test specimen. 8.5 The minimum size of the hole in accordance with the requirements of 8.1 and 8.2 is the maximum diameter of a round test rod with a hemispherical top that can be inserted into the hole. 8.6 According to the requirements of 8.2: a) A motor that cannot be directly accessed is a motor that: 1) must be opened or removed (without tools) part of the housing, such as a protective cover, fence, etc., to be accessed, or 2) is located at a high place or is equipped with a protective device or is enclosed so that it cannot be accessed. b) A directly accessible motor is one that:
1) can be touched without opening or removing any part, or 2) is positioned so that it can be touched. 8.7 Insulating brushes are not required to be additionally enclosed in accordance with the requirements of 8.1 and 8.2. 8.8 The requirements of 8.1, 8.2 and 28.2 apply to the back of free-standing (unsupported) equipment and are applied to the back and sides of built-in equipment. If the front, sides and back of a free-standing or built-in equipment extend substantially to the supporting surface of the equipment, the above requirements do not apply to the bottom of these two types of equipment.
8.9 The bottom surface of the enclosure of a wall-mounted equipment shall be complete and free of holes. 3.5 Radius of curvature 4—A bevel GB17202—1997 About 30° 25 Radius of curvature 25 Radius of front edge Figure 2 Articulation test with connecting baffle Unit, inch, ram Dimensions Unit GE17202-1997 Figure 3 Test specimen for measuring uninsulated live parts
Figure 4 Test specimen for measuring film-coated wires
Shaped
Shaved
Figure 5 Hinged test rod with shield for measuring accessibility of the International Electrotechnical Commission (IEC) 8.10 Protective devices, such as fuses, shall be located in an easily accessible position whenever they need to be replaced or replaced. 8.11 Protective devices shall be completely inaccessible from the outside of the equipment unless the doors or covers of the equipment are opened. Exception: Circuit breaker operating levers, motor manual operating buttons and similar parts extending outside the equipment enclosure. 8.12 If the doors or panels of the enclosure must be opened to replace or manipulate protective devices, such doors or panels shall be connected by chains or equivalent means.
8.13 Doors or covers on fuse holders shall be kept in the closed position and shall be tight fitting. 9 Mechanical assembly
9.1 The equipment should be assembled in such a way that vibrations generated during normal operation will not cause adverse effects. The brushes should be tightened with screws or other structures should be used to prevent them from loosening.
9.2 Switches, lamp holders, sockets for power plugs, power plugs for motors or similar components shall be fixed to prevent movement or rotation. Exception 1: If all of the following four conditions are met, it is not necessary to prevent the switch from rotating: a) A sliding switch or other type of switch that does not rotate during operation, a toggle switch is considered to be a switch that rotates due to force during normal operation:
GB 17202—1997
b) The switch is installed in a way that will not cause it to become loose due to network operation; d) The normal operation of the switch is mechanical rather than direct human contact. Exception 2 Non-replaceable bulbs, such as signal lamps, indicator lamps, etc., are sealed in a non-detachable lamp holder. If such a lamp holder rotates, the gap will not be reduced to below the minimum allowable value, and it is not necessary to prevent the rotation of the lamp. The measures to prevent rotation required by 9.39.2 should not only increase the friction between the surfaces, but also include other measures. For example, the proper use of washers can prevent the rotation of small fixed switches or other devices with single-hole mountings. 9.4 Electrical components should be positioned to ensure that no moisture accumulates on them or that they are soaked by condensation dripping from a counter, water tank, etc.
10 Corrosion Protection
10.1 The surface of steel parts shall be protected from rust by spraying, plating, coating, or other methods that provide equivalent protection. Exception 1: Bearings, balancing weights, iron core sheets, or small parts such as washers and screws made of steel. Exception 2: Steel parts that will not cause fire, electric shock, or personal injury if rusted or damaged. 11 Power Connection
11.1 Main Toilet
11.1.1 The equipment shall be equipped with terminals or leads for field connection and shall be equipped with means for connection to the wiring system. Exception: Non-wall-mounted equipment may be equipped with a flexible cord and power plug for connection to the power circuit. 11.1.2 Unless the equipment is equipped with wires as part of the structure and the wires are connected by the factory, the pressure connector, solder socket, welding ring or crimping metal ring, etc., are used to make power connections. Otherwise, the terminal for field connection is considered to be a terminal for field connection of wires.
11.2 Equipment with permanent connection
112.1 Junction box
11.2.1.1 The location of the wiring used for connecting the power circuit shall ensure that: after the equipment is installed as required, the connection inside the box can be easily checked.
11.2.1.2 The location of the junction box of wall-mounted equipment shall ensure that: after installation, the equipment can be accessed without moving the equipment.
11.2.1.3 Junction boxes, wiring boxes, etc. used for field connection of power circuits shall be free of sharp edges, including screw threads, burrs, welding marks, moving mail or similar edges that can damage the insulation of wires. 11.2.1.4 If the motor of the equipment is intended to be connected to the power supply, the terminal box on the motor shall comply with the requirements for terminal boxes in GB11711 "General Safety Requirements for Small and Medium-sized Rotating Machines". 11.2.2 Terminals and Leads.
11.2.2.1 Terminals or leads connected with power circuit conductors shall be able to withstand the connection of conductors not less than the branch circuit rating marked on the equipment.
11.2.2.2 Terminals shall be equipped with welded sockets or pressure connectors firmly held in place by bolts or screws. Connectors that rely on solder to ensure welding quality shall not be used to connect the grounding conductor of the equipment. Exception: If a .upturned lug or equivalent component is installed to hold the conductor in the normal position, the terminal screw may be used to connect the terminal of a 5.43mm or thinner conductor:
11.2.2.3 The terminal shall be prevented from rotating.
11.2.2.4 The terminal screw shall be screwed into the metal. 11.2.2.5 The terminal screws of the terminal shall not be smaller than M311.2.2.6 The terminal block with the thread of the terminal screw shall be a metal product with a thickness of not less than 1.3mm, and the tapped hole shall have at least two full threads.
GB 17202-1997
Exception; if the tapped thread has the corresponding mechanical strength, an alloy plate with a thickness of not less than 0.&mm may also be used. 11.2.2.7 In order to obtain the required thickness of not less than two full turns of thread, the metal of the terminal block to be tapped can be squeezed out of the tapped hole, but the thickness of the metal plate that is not squeezed shall not be less than the pitch of the thread. 11.2.2.8 The upper terminal lug or cup-shaped pad shall be able to hold the wire described in 11.2.2.1 but not less than 2.06mm under the screw head or washer.
11.2.2.9 If the leads in the outlet box or junction box are used for field connection to external circuits, the free length of the leads shall not be less than 15 mm. Exception: If it is obvious that a lead with a free length exceeding 150 mm will cause a fire or electric shock hazard, the free length of the lead shall not be less than 150 mm.
11.3 Connection of grounded power conductor.
11.3.1 Equipment equipped with wiring terminals or leads, rated voltage 220 V or 220/380 V or less, and using: a) screw-type lamp holder or component holder.
b) single-pole switch, or
() single-pole automatic controller,
shall have a grounding terminal or lead + dedicated to the connection of the conductor that is already grounded in the power circuit. The terminal or lead that must be connected to the conductor that is already grounded in the power circuit shall be the terminal or lead that is connected to the screw-type lamp holder but not to the single-pole switch or single-pole automatic controller.
11.3.2 The grounding terminal for connecting the power circuit grounding conductor shall be metal or shall be covered with a gold screen; the metal shall be essentially white. Such a terminal shall be clearly distinguishable from other terminals; or it shall be clearly shown in some way, such as on the attached wiring diagram, that the terminal is a special terminal for connecting the grounded conductor of the power circuit. 11.3.3 The lead wire of the grounding conductor used to connect the power circuit shall be yellow-green and shall be clearly distinguishable from the loose lead wire. 11.4 Connection of equipment grounding conductor
11.4.1 The terminal dedicated to connecting the equipment grounding conductor shall be able to firmly fix the conductor of the size that meets the requirements for use. 11.4.2 The head of the terminal screw used to connect the equipment grounding conductor shall be green, and the nail head shall be slotted or hexagonal, or both slotted and octagonal. The connector used to connect this type of wire shall have a clear identification mark, such as a "\" symbol, or a mark shall be marked on the wiring diagram of the equipment. The wiring screws or connectors shall be located where the equipment will not be moved during normal use. 11.4.3 The surface of the grounding lead used to connect the equipment grounding wire shall be yellow and continuous, and no other lead shall have such identification marks.
11.5 Equipment connected by wires
11.5.1 Soft cords and plugs
11.5.1.1 The current carrying capacity of the soft cord shall not be less than the current rating of the equipment. 11.5.1.2 The current carrying capacity of the power plug shall not be less than the current rating of the equipment, and its voltage rating shall not be less than the voltage rating of the equipment. 11.5.1.3 The soft cord installed in the equipment shall be GB 5023.5 11.5.1.4 If the cord entry hole of non-automatic equipment or semi-automatic control equipment is 0.8m or more above the ground, the length of the cord from the surface of the power plug to the point where the cord enters the equipment shall not be less than 2m. 11.5.1.5 If the cord is less than 0.8m above the ground at the entrance of non-automatic equipment or semi-automatic control equipment, the length of the cord shall not be less than 2.6m minus the distance between the cord entry hole of the equipment and the ground. 11.5.1.6 The length of the cord of automatic equipment, that is, the distance from the surface of the power plug to the cord entry hole of the equipment, shall not be less than 2m. Notes:
1 Original U1. The rated voltage in the standard is 125V or 126V/250V, and the rated voltage of our network 220V or 220V/380V should be used. GB 172021997
11.5.1.7 If the flexible cord is introduced into the equipment through the cord entry hole, the flexible cord will be damaged, or exposed to high" flexible cord rated temperature, or the distance between the flexible cord and the strain relief device will be reduced to less than the minimum allowable value, it shall be prohibited to push the flexible cord into the equipment through the cord entry hole. 11.5.2 Strain relief device
11.5.2. T Flexible cords shall be equipped with strain relief devices so that the stress applied to the flexible cord will not be transmitted to the terminal, terminal or internal wiring. The strain relief device shall comply with Section 43 11.5.2.2 If the cord is tied in a knot for strain relief, the surface that rubs against or contacts the knot shall not have projections, sharp edges, weld scars, burrs, etc. that may wear the cord insulation. 11.5.3 Cord Sleeve
11.5.3.1 The power cord entry hole of the enclosure, including the edge of the cord entry hole in the sleeve, shall be smooth and flat, without weld scars, burrs or sharp edges
11.5.3.2 If the power cord entry hole of the enclosure is equipped with an insulating sleeve, and if the material of the sleeve is not ceramic, acid-formaldehyde or cold-molded mixed material, fiber, or other materials that have been tested and proved to meet the requirements of use, the metal hole for installing the sleeve shall be smooth and flat, without weld scars, burrs or sharp edges. 12 Internal wiring
12.1 The internal wiring of equipment refers to all interconnected wires after the power cord of the equipment enters the outside, or refers to all interconnected wires after the power connection terminal of the permanent equipment, some of which are not completely enclosed, and some are soft wires.
12.2 The internal wiring and connections between the parts of the equipment are protected or should be sealed. If the external connection between these parts is a closed connection, it must be flexible and a piece of soft wire can be used for external connection. 12.3 When the internal wiring can meet the requirements of 8.2 when evaluated according to enameled wire, it can be regarded as having met the protection required by 12.2. If the unprotected internal wiring is firmly fixed in the casing and is not subjected to stress or mechanical damage, this unprotected internal wiring can also be connected.
12.4 The insulated internal wiring in the equipment, including the grounding wire, shall meet the requirements for its use unless it is determined to be an uninsulated live part. When assessing whether it meets the requirements, the following factors shall be included: a) The temperature and voltage that the wiring may encounter! h) contact with oil, grease or other materials that may have an adverse effect on insulation; c) love and
d) other conditions that may be encountered during use and maintenance. 12.5 Asbestos-type insulation wires are not allowed to be used in washing machines. 12.6 Thermoplastic insulation, polychloroprene rubber insulation or rubber insulation wires used for internal wiring should be standard wires for buildings or wiring materials for equipment: and meet the requirements of Table 2. Table 2 Characteristics of internal wiring
Thermoplastic or chloroprene rubber
Cross-linked synthetic mulberry
Nominal thickness of natural insulation layer
Whether braided kidney or sheath is required
Nominal thickness of braided belt or sheath
a) If the conductor has a tissue belt or sheath with a nominal thickness of not less than 0.4mm, its nominal thickness may not be less than 0.2mm. b) For non-silicone wall heat-resistant rubber wall, the standard creepage is not less than 1.2mm, and no braiding is required. （）Non-chloroprene rubber or non-rubber type synthetic compound1 The current carrying capacity of the soft cord shall not be less than the current rating of the equipment. 11.5.1.2 The current carrying capacity of the power plug shall not be less than the current rating of the equipment, and its voltage rating shall not be less than the voltage rating of the equipment. 11.5.1.3 The soft cord installed in the equipment shall be the soft cord in GB 5023.5. Exception: For automatic equipment not mounted on wheels, roundabouts or equivalent, non-braided parallel soft cords may be used. 11.5.1.4 If the soft cord entry hole of non-automatic equipment or semi-automatic control equipment is 0.8m or more above the ground, the length of the soft cord from the surface of the power plug to the point where the soft cord enters the equipment shall not be less than 2m. 11.5.1.5 If the cord is less than 0.8m above the ground at the entrance of non-automatic equipment or semi-automatic control equipment, the length of the cord shall not be less than 2.6m minus the distance between the cord entry hole of the equipment and the ground. 11.5.1.6 The length of the cord of automatic equipment, that is, the distance from the surface of the power plug to the cord entry hole of the equipment, shall not be less than 2m. Instructions for use:
1 The rated voltage in the original U1. standard is 125V or 126V/250V, and the rated voltage of our network 220V or 220V/380V should be used. GB 172021997
11.5.1.7 If the flexible cord is introduced into the equipment through the cord entry hole, the flexible cord will be damaged, or exposed to high" flexible cord rated temperature, or the distance between the flexible cord and the strain relief device will be reduced to less than the minimum allowable value, it shall be prohibited to push the flexible cord into the equipment through the cord entry hole. 11.5.2 Strain relief device
11.5.2. T Flexible cords shall be equipped with strain relief devices so that the stress applied to the flexible cord will not be transmitted to the terminal, terminal or internal wiring. The strain relief device shall comply with Section 43 11.5.2.2 If the cord is knotted to relieve stress, the surface that rubs against or contacts the knot shall not have protrusions, sharp edges, weld scars, burrs, etc. that may wear the cord insulation. 11.5.3 Cord sleeve
11.5.3.1 The inlet hole of the external power cord, including the edge of the inlet hole in the sleeve, shall be smooth and flat without weld scars, burrs or sharp edges
11.5. 3.2 If the power cord entry hole of the casing is equipped with an insulating sleeve, and if the material of the sleeve is not ceramic, acetal or cold-molded mixed material, fiber, or other materials that have been tested and proved to meet the requirements of use, the metal hole for installing the sleeve should be smooth and flat, and there should be no welding scars, burrs or sharp edges. 12 Internal wiring
12.1 The internal wiring of the equipment refers to all interconnected wires after the power cord of the equipment enters the outside, or refers to all interconnected wires after the power supply connection terminal of the permanently connected equipment is connected, and some of the interconnected wires have not been completely enclosed, and some are cords
12.2 The internal wiring and connecting components between equipment components are protected or should be If the external connection between these parts is a closed connection, it must be flexible enough. A piece of soft wire can be used for external connection. 12.3 When the internal wiring can meet the requirements of 8.2 when evaluated by enameled wire, it can be regarded as having met the protection required by 12.2. If the unprotected internal wiring is firmly fixed in the casing and is not subjected to stress or mechanical damage, this unprotected internal wiring can also be connected.
12.4 The insulated internal wiring in the equipment, including the grounding conductor, shall meet the requirements for its use unless it is determined to be an uninsulated live part. When evaluating whether it meets the requirements, the following factors shall be included: a) The temperature and voltage that the wiring may encounter! h) contact with oil, grease or other materials that may have an adverse effect on insulation; c) love and
d) other conditions that may be encountered during use and maintenance. 12.5 Asbestos-type insulation wires are not allowed to be used in washing machines. 12.6 Thermoplastic insulation, polychloroprene rubber insulation or rubber insulation wires used for internal wiring should be standard wires for buildings or wiring materials for equipment: and meet the requirements of Table 2. Table 2 Characteristics of internal wiring
Thermoplastic or chloroprene rubber
Cross-linked synthetic mulberry
Nominal thickness of natural insulation layer
Whether braided kidney or sheath is required
Nominal thickness of braided belt or sheath
a) If the conductor has a tissue belt or sheath with a nominal thickness of not less than 0.4mm, its nominal thickness may not be less than 0.2mm. b) For non-silicone wall heat-resistant rubber wall, the standard creepage is not less than 1.2mm, and no braiding is required. （）Non-chloroprene rubber or non-rubber type synthetic compound1 The current carrying capacity of the soft cord shall not be less than the current rating of the equipment. 11.5.1.2 The current carrying capacity of the power plug shall not be less than the current rating of the equipment, and its voltage rating shall not be less than the voltage rating of the equipment. 11.5.1.3 The soft cord installed in the equipment shall be the soft cord in GB 5023.5. Exception: For automatic equipment not mounted on wheels, roundabouts or equivalent, non-braided parallel soft cords may be used. 11.5.1.4 If the soft cord entry hole of non-automatic equipment or semi-automatic control equipment is 0.8m or more above the ground, the length of the soft cord from the surface of the power plug to the point where the soft cord enters the equipment shall not be less than 2m. 11.5.1.5 If the cord is less than 0.8m above the ground at the entrance of non-automatic equipment or semi-automatic control equipment, the length of the cord shall not be less than 2.6m minus the distance between the cord entry hole of the equipment and the ground. 11.5.1.6 The length of the cord of automatic equipment, that is, the distance from the surface of the power plug to the cord entry hole of the equipment, shall not be less than 2m. Instructions for use:
1 The rated voltage in the original U1. standard is 125V or 126V/250V, and the rated voltage of our network 220V or 220V/380V should be used. GB 172021997
11.5.1.7 If the flexible cord is introduced into the equipment through the cord entry hole, the flexible cord will be damaged, or exposed to high" flexible cord rated temperature, or the distance between the flexible cord and the strain relief device will be reduced to less than the minimum allowable value, it shall be prohibited to push the flexible cord into the equipment through the cord entry hole. 11.5.2 Strain relief device
11.5.2. T Flexible cords shall be equipped with strain relief devices so that the stress applied to the flexible cord will not be transmitted to the terminal, terminal or internal wiring. The strain relief device shall comply with Section 43 11.5.2.2 If the cord is knotted to relieve stress, the surface that rubs against or contacts the knot shall not have protrusions, sharp edges, weld scars, burrs, etc. that may wear the cord insulation. 11.5.3 Cord sleeve
11.5.3.1 The inlet hole of the external power cord, including the edge of the inlet hole in the sleeve, shall be smooth and flat without weld scars, burrs or sharp edges
11.5. 3.2 If the power cord entry hole of the casing is equipped with an insulating sleeve, and if the material of the sleeve is not ceramic, acetal or cold-molded mixed material, fiber, or other materials that have been tested and proved to meet the requirements of use, the metal hole for installing the sleeve should be smooth and flat, and there should be no welding scars, burrs or sharp edges. 12 Internal wiring
12.1 The internal wiring of the equipment refers to all interconnected wires after the power cord of the equipment enters the outside, or refers to all interconnected wires after the power supply connection terminal of the permanently connected equipment is connected, and some of the interconnected wires have not been completely enclosed, and some are cords
12.2 The internal wiring and connecting components between equipment components are protected or should be If the external connection between these parts is a closed connection, it must be flexible enough. A piece of soft wire can be used for external connection. 12.3 When the internal wiring can meet the requirements of 8.2 when evaluated by enameled wire, it can be regarded as having met the protection required by 12.2. If the unprotected internal wiring is firmly fixed in the casing and is not subjected to stress or mechanical damage, this unprotected internal wiring can also be connected.
12.4 The insulated internal wiring in the equipment, including the grounding conductor, shall meet the requirements for its use unless it is determined to be an uninsulated live part. When evaluating whether it meets the requirements, the following factors shall be included: a) The temperature and voltage that the wiring may encounter! h) contact with oil, grease or other materials that may have an adverse effect on insulation; c) love and
d) other conditions that may be encountered during use and maintenance. 12.5 Asbestos-type insulation wires are not allowed to be used in washing machines. 12.6 Thermoplastic insulation, polychloroprene rubber insulation or rubber insulation wires used for internal wiring should be standard wires for buildings or wiring materials for equipment: and meet the requirements of Table 2. Table 2 Characteristics of internal wiring
Thermoplastic or chloroprene rubber wwW.bzxz.Net
Cross-linked synthetic mulberry
Nominal thickness of natural insulation layer
Whether braided kidney or sheath is required
Nominal thickness of braided belt or sheath
a) If the conductor has a tissue belt or sheath with a nominal thickness of not less than 0.4mm, its nominal thickness may not be less than 0.2mm. b) For non-silicone wall heat-resistant rubber wall, the standard creepage is not less than 1.2mm, and no braiding is required. （）Non-chloroprene rubber or non-rubber type synthetic compoundNeoprene insulated or rubber insulated wires shall be standard wires for buildings or wiring materials for equipment: and shall meet the requirements of Table 2. Table 2 Characteristics of internal wiring
Thermoplastic or chloroprene rubber
Cross-linked synthetic mulberry
Nominal thickness of natural insulation layer
Whether braiding or sheathing is required
Nominal thickness of braided tape or sheath
a) If the conductor has a tissue tape or sheath with a nominal thickness of not less than 0.4mm, its nominal thickness may not be less than 0.2mm.b) For non-silicone wall heat-resistant rubber wall, the standard creepage shall not be less than 1.2mm. No braiding is required. () Non-chloroprene rubber or non-rubber synthetic compoundNeoprene insulated or rubber insulated wires shall be standard wires for buildings or wiring materials for equipment: and shall meet the requirements of Table 2. Table 2 Characteristics of internal wiring
Thermoplastic or chloroprene rubber
Cross-linked synthetic mulberry
Nominal thickness of natural insulation layer
Whether braiding or sheathing is required
Nominal thickness of braided tape or sheath
a) If the conductor has a tissue tape or sheath with a nominal thickness of not less than 0.4mm, its nominal thickness may not be less than 0.2mm.b) For non-silicone wall heat-resistant rubber wall, the standard creepage shall not be less than 1.2mm. No braiding is required. () Non-chloroprene rubber or non-rubber synthetic compound
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