GB 30439.6-2014Safety requirements for industry products-Part 6: Safety requirements for solenoid valve (English PDF)

3.1 Parts and Accessories

3.1.1 Terminal terminal A component of the apparatus (device) connected to the outer conductor provided.

Note. The terminal can contain one or more contacts, so that the term also includes sockets, connectors and the like. [GB 4793.1-2007, the definition 3.2.1]

3.1.2 Protective Conductor Terminal protectiveconductorterminal For security purposes and conductive parts of equipment are connected, but also with a predetermined external terminal connected to protective earthing system. [GB 4793.1-2007, the definition 3.2.3]

3.1.3 Housing enclosure Protect the unit against certain external influences and prevent parts from any direct contact with the direction provided. [GB 4793.1-2007, the definition 3.2.4]

3.2 Electrical values

3.2.1 Rated (value) rated (value) Usually by the manufacturer for the components, apparatus, or device reaches a given magnitude of working status. [GB 4793.1-2007, the definition 3.3.1]

3.2.2 Rating rating A set of ratings and working conditions. [GB 4793.1-2007, the definition 3.3.2]

3.2.3 Operating voltage workingvoltage When the device is supplied at rated voltage, the insulation can occur any particular maximum RMS AC voltage or DC voltage values.

Note 1. The instantaneous value is not considered.

Note 2. The open circuit conditions and normal operating conditions are to be considered. [GB 4793.1-2007, the definition 3.3.3]

3.3 Test

3.3.1 Type test typetest For a particular design, in order to prove that the design and structure is able to meet one or more requirements of this part and of one or more devices Taiwan sample (or device components) tests carried out.

Note. This is IEV151-04-15 definition expanded to include both the design requirements and structural requirements. [GB 4793.1-2007, the definition 3.4.1]

3.3.2 Routine tests routinetest After fabrication or manufacture to determine the means (equipment) meets a criterion and for each separate device (device) test (See Appendix F). [GB 4793.1-2007, the definition 3.4.2]

3.4 Security Terminology 3.4.1 (Parts) palpable accessible (ofapart)

6.2 When prescribed use standard test finger or test pin to the touch. [GB 4793.1-2007, the definition 3.5.1]

3.4.2 Dangerous hazard Potential source of harm. [GB 4793.1-2007, the definition 3.5.2]

3.4.3 Hazardous live hazardouslive Electric shock or electrical burn make it under normal condition or single fault condition.

Note. The value of the normal conditions apply, see 6.3.1, for under a single fault condition is considered to be a higher number apply, see 6.3.2. [GB 4793.1-2007, the definition 3.5.3]

3.4.4 Power supply mains It is designed to make about the device connected thereto need for equipment to provide electricity for the purpose of low-voltage power supply system [a value greater than 6.3.2a) of The predetermined value].

Note. Some of the measurement circuit can measure the power grid and for purposes connected with. [GB 4793.1-2007, the definition 3.5.5]

3.4.5 MAINS circuit mainscircuit Intended to be connected to the power grid, providing power for the device circuitry.

Note. The measuring circuit and the use of induction powered from the mains power supply circuit circuit does not belong to the grid power supply circuit. [GB 4793.1-2007, the definition 3.5.6]

3.4.6 Normal use normaluse Operation according to instructions or intended use by the apparent instructions, including standby. NOTE. In most cases, the normal use also refers to normal conditions, because the use of manual warns users not to use the device under abnormal conditions. [GB 4793.1-2007, the definition 3.5.9]

3.4.7 Normal conditions normalcondition All protective measures to prevent dangerous conditions are intact. [GB 4793.1-2007, the definition 3.5.10]

3.4.8 Single fault condition singlefaultcondition Protective measures to prevent the risk of a failure condition occurs or is likely to cause some dangerous and a fault condition.

Note. If a single fault condition will inevitably lead to another single fault conditions, such a two failures are considered a single fault condition. [GB 4793.1-2007, the definition 3.5.11]

3.4.9 Operator operator According to the intended use of the device to operate the equipment man.

Note. the operator for this purpose should be properly trained. [GB 4793.1-2007, the definition 3.5.12]

3.5 Insulation

3.5.1 Basic insulation basicinsulation Whose failure can cause a shock hazard insulation.

Note. The basic function of insulation can be used for insulation purposes. [GB 4793.1-2007, the definition 3.6.1]

3.5.2 Additional insulation supplementaryinsulation Independent insulation applied in addition to basic insulation, in order to ensure that when once the basic insulation failure can still prevent electric shock. [GB 4793.1-2007, the definition 3.6.2]

3.5.3 Double insulation doubleinsulation Constituted by the basic insulation and supplementary insulation. [GB 4793.1-2007, the definition 3.6.3]

3.5.4 Reinforced insulation reinforcedinsulation Its ability to provide protection against electric shock is not less than double insulation insulation, it can not as a separate image into several layers of additional insulation or basic insulation Insulation test line configuration. [GB 4793.1-2007, the definition 3.6.4]

3.5.5 Pollution polution It will lead dielectric strength or surface resistivity reduced solid, liquid or gaseous (ionized gas) additional foreign substances. [GB 4793.1-2007, the definition 3.6.5]

3.5.6 Pollution degree polutiondegree To assess the level of contamination and the separation distance specified below microenvironment. [GB 4793.1-2007, the definition 3.6.6]

3.5.6.1 Pollution Level 1 polutiondegree

1 No pollution or only dry non-conductive pollution, the pollution has no adverse effect. [GB 4793.1-2007, the definition 3.6.6.1]

3.5.6.2 Pollution Level 2 polutiondegree

2 Normally only non-conductive pollution, but occasionally due to the cohesive effect and short conductive. [GB 4793.1-2007, the definition 3.6.6.2]

3.5.6.3 Pollution Level 3 polutiondegree

3 Conductive pollution or dry non-conductive pollution due to the unifying role and become conductive.

Note. In this condition, the device is usually to prevent exposure to direct sunlight, rain, strong wind pressure, but it need not control the temperature or humidity. [GB 4793.1-2007, the definition 3.6.6.3]

3.5.7 Clearance clearance The shortest distance between two conductive parts in the air. [GB 4793.1-2007, the definition 3.6.8]

3.5.8 Creepage distance creepagedistance The shortest distance between two conductive parts along the surface of insulating material. [GB 4793.1-2007, the definition 3.6.7]

3.6 Definition and related products

3.6.1 Solenoid solenoidvalve Energizing the coil excitation generated electromagnetic force to drive the spool valve switch.

3.6.2 Solenoid solenoidcoil Energized a magnetic field generates an electromagnetic force member after wound.

3.6.3 Moving core plungerarmature The electromagnetic force generated by the excitation coil puff actuated, the spool or pilot valve core operation.

4.4 Test under single fault conditions

4.4.1 Overview It should be according to the following requirements.

a) Test the solenoid valve and a circuit diagram, it is possible to identify a fault condition hazards. These fault conditions shall be run on the device When applied to normal conditions a minimum;

b) In addition to proof of a specific fault conditions likely to cause danger, the test shall be made by the fault, or select test Alternative method of compliance prescribed in place of fault testing [see 9b) and 9c)];

c) solenoid valve should work under reference test conditions (see 4.3) the most unfavorable combination of conditions, for different faults, which combined strip Member can vary, these combined conditions should be recorded during each test.

4.4.2 Fault conditions imposed Fault conditions 4.4.2.1 ~

4.4.2.2 should include provisions for fault conditions. These fault conditions can only be applied to one and should press Sequentially applied in any convenient order, can not be applied more than one fault at the same time, the results unless it is applied to a fault caused by a fault. After each applied once the fault condition, the solenoid valve or component should pass the applicable test 4.4.4.

4.4.2.1 Protective conductor Protective conductor should be disconnected, but permanent connection solenoid valve or comply with GB/T 11918 ~ GB/T 11919 of the connector Except for the solenoid valve.

4.4.2.2 solenoid AC-powered solenoid valve should be prevented from starting moving core in the case of fully energized, the movable core in the solenoid valve operation starting position. In one test damaged solenoid, allowing for repair or replacement before the next test. During the test, the fuse for the normal operating current 10 times the rated current work.

4.4.3 Test duration

4.4.3.1 Overview Should work until the solenoid valve failure results generated by the applied never again have further changes so far. Each test a Generally limited to less than 1h, 1h if in the end there is a fire, electric shock or personal injury, dangerous signs, the test should continue to be until Or any of the above disasters do occur longest sustained period of 4h.

4.4.3.2 Fuse If the fuse is disconnected due to a fault interrupt leaving, and if the fuse is not in operation within about 1s, it should measure about Fault condition current flowing through the fuse. In order to determine whether the current reaches or exceeds the minimum operating current fuse and longer melt Breaker before operation, it should take advantage of the pre-arcing time/current characteristics of the fuses to be assessed. The current through the fuse will be made over time and Students change. If the test does not meet current minimum operating current fuse, the power supply should work for a period corresponding to the longest time fuse, Or should the power of continuous work

4.4.3.1 Predetermined time. Compliance

4.4.4 after applying the fault condition

4.4.4.1 Protection against electric shock After the application of a single fault, the following measu...