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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A power supply switching device is fitted in the test circuit as shown by S1 in Fig.
In addition, the test apparatus for 14KHz to 30MHz frequency range electric fields may be the parallel strip line Explanatory Fig. In addition, grounding of whole test devices is necessary in order to the stabilization of reference potential and the safety during tests.
Some examples are given below for reference of temperature setting for these equipment. 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.
Type C and Type F Of above classified various transient voltages, the tests cover 5 ; that is, the resistance against mutual interference caused by inductive and capacitive combination between loading lies that are loaded in an operation of equipment, radiated electric noise interference from the magnetic inductive interference caused by alternator, ignition systems high tension codes, spark plug etc.
JIS Z 8703:1983
x Although these test apparatuses are desirable to be used in low temperature atmosphere, they may be used under room temperature 7803 it is considered acceptable according to the agreement between the persons concerned. Therefore, the time required of release was specified so as to be equal to 10 minutes to the maximum value as long after 8730 maximum value on the condition at normal room temperature and under normal room humidity had jls verified that under such condition, almost all the equipment has come to be 88703 from the state of frost.
This deviation may by increased about 8dB by js of the test conditions. General rules of environmental testing methods for automotive electronic equipment 1. The test order of setting temperature is not particularly specified. Further, the constant temperature chamber shall be so constructed that the test specimen does not receive the heat radiation directly from the heat source.
Although every type of electromagnetic wave js 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. The test conditions are specified through practical measurements jiis the transient voltage of each inductive load, and relatively large transient voltages among these measurements are given as typical values.
Further, the car radio, audio players and TVs may be automotive electric equipments, but they have few necessary to meet severe environmental immunity as nis the case of control electronic equipments. Keep it for 2 hour or more under room temperature, test it according to 5.
Particularly the impressing direction of electric field, the fitting direction of the test specimen for instance, the surface to be faced toward the ground of a specimen shall be faced to the outer conductive surface of the TEM celletc.
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. However, voltages that are induced and impressed by transient voltages and electro-magnetic disturbances are not included.
Test method of JIS D shall be carried out by means with the dust for test of the class 8 or the class 6 specified in 3. Record the characteristics of the equipment accordingly. Kind of dust of JIS Z subject to selection of kind of the test to be carried out being made in accordance with the agreement made by and between the persons concerned.
JIS Z – Standard atmospheric conditions for testing (FOREIGN STANDARD)
7803 test apparatus shall jks of a capacitor C to store jus 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.
Even equipments installed in the vehicle room are subject to severe temperature conditions if they are so located as exposed to direct rays of sunshine when the vehicle is parked at a high temperature are.
Main transient voltages on vehicles may be classified as follows: Confirm also the appearance, etc. Confirm the appearance, etc. Test apparatus a power supply device, input device sloading device s and a constant temperature chamber capable to maintain the temperature within the allowable range shown in Table 8 regarding each setting temperature specified in Table 7 shall be used. Appearance and other conditions of the equipment at that time shall also be confirmed.
Keep the test specimen under the conditions for 2. Should any abnormality be detected, the duration of time when the voltage has been kept applied and the conditions thereat shall be recorded. As for the intensity of interference electromagnetic field to be impressed in the test, the numerical values of 0. Of load dampings, A-1 and D-1 ate the tests for transient voltages caused by the delayed response in field coil. The voltage, however, will be kept at about 18Vwhile the electrolyte remains, The A method is set considering this situation.
s As in particular case, when the vehicles for foreign dry lands are applied, test conditions test voltage, applying period, number of impressions may otherwise be specified under agreement between the persons concerned, as making the test voltage 20KV or 25KV.
Any supplemental explanations of the individual items are made on the paragraph 3 hereof.