Find the most up-to-date version of JSA – JIS Z at Engineering JIS Z Standard conditions of the test site. Standard Atmospheric Conditions for Testing 1. This standard application range, the temperature of the . JIS Z Standard atmospheric conditions for testing (FOREIGN STANDARD). standard by Japanese Industrial Standard / Japanese.
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In addition ,any conditions including but not 88703 to the visual appearance shall also be verified. Equipment subject to transient voltage test Although kinds of equipment subject to Type A through Type F transient voltage tests are basically left to the agreement of the parties concerned, some examples are given below for the reference taking account of the degree of effects of kinds of devices on the vehicle 8730 some abnormalities have occurred Explanatory Table 1. In case of the equipment, the heat mass of which are utmost high jia, the duration of time for holding at low temperature and the time required of release in constant temperature and humidity chamber may be optionally fixed in accordance with the agreement made between the persons concerned.
A study had been carried out so as to obtain allowable range of the testing voltage. The test specimen shall be operated under the test voltage having been applied thereto, after the operation of test specimen is stabilized, output of power source micro interruption equipment shall be micro interrupted and whether any abnormity exist or not of specimen shall be confirmed and recorded.
Some examples are given below for 8730 of temperature setting for these equipment. Confirm also the appearanceetc.
JIS Z 8703:1983
Confirm the appearance, etc. Number of impressions is specified jjs 3 times or more, but about 10 times are desirable. Table 4 in the Text Value specified on Table 4 and Table 5 of the text are the actual values of related circuit parts.
Carry out the test pattern shown in Fig. Such devicestherefore, may be excluded from this standard, but it is desirable that the test methods specified in jiis standard are applied to those equipments. Further, the constant temperature chamber shall be so constructed that the test specimen does not receive the heat radiation directly from the heat source. Typical values of transient voltages under the above mentioned conditions are as follows.
In respect of method of treatment for measurement of performance after the temperature nis humidity 873 test, the three conditions as listed hereunder were specified; 1 Water on surface to be dried, 2 Overall sections to be dried, and 3 Surface to be kept as it is, should water in drop be kept attached thereon. Subsequent operations shall be as follows: Other details of the tests are left to the agreement between parties.
This is a test to evaluate the resistance against the over-voltage supplied in the case mentioned above, the objective equipment to which are same as those mentioned in the paragraph 5. Classification requirements The classification of tests shall be in accordance with Table.
JASO D 英文版_百度文库
Of above mentioned transient voltages. Further, measuring accuracy and reproducibility of TEM cell test method using the reference sample, that careful consideration is necessary on the following points: Type B and Type C Impressing at operating portion tests These are the tests assuming the case that electrostatic discharge occurs a manual operating portion where the driver may have frequently to touch and the equipment malfunctions and bum out damage.
However, due lack of practical experiences and actual applications, it was decided not to be specified.
As for the high output transmitter for the testit is considered convenient to use the transmitters with frequency bands for amatures 1. However, since JIS K is the standard to specify the testing the testing the physical properties of sulfurized rubber, only the provision for resting oil was referred in those standards and in respect of the method of testing, a unique method newly developed to judge whether the test shall be required or not and the testing conditions were specified, it is considered not necessary for the equipment to be installed inside car room to be immersed in oil.
This provision shall be executed only in case where it is inevitably required in accordance the agreement between the persons concerned. As for the intensity of interference electromagnetic field to be impressed in the test, the numerical values of 0. Foregoing results are, however, obtained on bench assembled tests, and it was confirmed that only the lower transient voltage would occur on vehicle tests as compared with bench tests. Appearance and other conditions of the equipment at that time shall also be confirmed.
Although every type of electromagnetic wave should be included in the applicable frequency range, the provision is established mainly for the frequency band from MF medium frequency band to UHF ultra high frequency band that have the great effect in daily operation.
Since under such condition, the generation of transient voltage is limited to be kept so low that the test condition be made more relaxed, the resistance has been decided to be specified so to be directly connected with the power source and the test specimen. Should so wide range of difference of temperatures be specified, it would be regarded as a kind of thermal shock test.
Measurement shall particularly be cared. However, since there was not any testing specified in this standard, the minor deviation of testing voltage at which is important, it was decided to provide a provision to specify that the testing voltage shall be applied, which shall be monitored so as to be correct by means with any voltmeter of accuracy in the class of 0. Typical values of the former are as follows, and constants of parts of the test circuit are specified based on them.
Keep the test specimen under the conditions for 2. Particularly, strong electromagnetic fields that occur near radio transmission facilities represented by broadcasting stations, those which generated around the vehicle body by the operation on board radio of transmitter represented by transceiver, and troubles caused by interferences resulted from high frequency voltages, etc.
Therefore care must be taken, for condensers in particular, since the Indicated and actual capacities of condensers are qpttodiffer each other. The voltage, however, will be kept at about 18Vwhile the electrolyte remains, The A method is set considering this situation. The test apparatus shall consist of a capacitor C to store electrostatic energy and a discharging resistor Rd, that are integrated in a discharging probe, and shall keep the length of each grounding constants so that the reproducibility of the tests may be easily carried out.
However, though should it be exposed in the ambient conditions which is on lower side, dew would be created, depending on the heat mass of the equipment, a high fluctuations could be available in the periods of time required for a change from frost to dew. Thereforefor the each, the general method to be applicable to electronic equipment for automobile has been specified as a representative requirement.