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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However, the test may be carried out by means of the method as specified hereunder: In addition ,any conditions including but not limited to the visual appearance shall also be verified.
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.
Test methods are specified in this standard for 1 through 5. Further, measuring accuracy and reproducibility of TEM cell test method using the reference sample, that careful consideration is necessary on the following points: Thereaftersuccessively record the characteristics of the equipmentaccording to above mentioned 1 or 2.
Record the characteristics of 2 the equipment accordingly. Confirm also the appearanceetc. B-1 is a test against the transient voltage discharged from the field coil to the loading side when the ignition switch is opened in the 12V system. In the necessary case, the testing conditions severity of the shock, height of drop, etc.
Further, the constant temperature chamber shall be so constructed that the test specimen does not receive the heat radiation directly from the heat source. Among them, the 3 was especially specified, by being supposed the situation of the equipment sensor, actuator etc.
Any supplemental explanations of the individual items are made on the paragraph 3 hereof. Of load dampings, A-2 and D-2 are the tests for transient voltages caused by the inverse electromotive force of the stator coil. However, supposed that those tests are required to examine the changed behavior of the equipment due to change of the environmental conditions only by temperature and humidity cycle test, it is not possible to identify due to which the behavior available has been changed, either temperature change or humidity change.
JIS Z – Free download ASME ICC CSA ASTM Codes
Type E 4 Transient voltages generated when various inductive loads relay, solenoid, etc. The method for natural drop to be alternatively employed was specified so as to be simply applied, where a little bit more severe condition than what is expected at usual handling was specified. In addition, the test apparatus for 14KHz to 30MHz frequency range electric fields may be the parallel strip line Explanatory Fig.
Should any abnormality be detected, the duration of time when the voltage has been kept applied and the conditions thereat shall be recorded. Although these test apparatuses are desirable to be used in low temperature atmosphere, they may be used under room temperature if it is considered acceptable according to the agreement between the persons concerned. 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.
Some examples are given below for reference of temperature setting for these equipment. This test, therefore, aims to evaluate the electromagnetic environmental resistance by way of the design standard to protect equipment and to ensure functions of equipment from such troubles.
From the results above mentioned, this electromagnetic resisting characteristics test using TEM cell is useful as a test method to evaluate the operation of an electronic equipment unit under specific condition of lead wire connection, but conducted electromagnetic test that examine the effects of connecting lead wire, wiring, etc. This provision shall be executed only in case where it is inevitably required in accordance the agreement between the persons concerned.
Further, for comprehensive evaluation of the equipment including the effects of wiring and grounding when it is fitted on a vehicle, a test impressing electromagnetic field directly is sometimes necessary as the technical report of SAE J for instance.
Such devicestherefore, may be excluded from this standard, but it is desirable that the test methods specified in this standard are applied to those equipments.
JIS Z 8703:1983
Progressed with a great variety of electronic devices in recent years, such equipments have increased that give and receive information with drivers through switches, keyboards or visual displays.
When the ignition circuit is opened by the ignition switchtransient voltage tends to differ according to the arc discharge generated by the switch, some test results indicate, if a noise suppressor condenser is installed in parallel to the power supply circuit, it will constitute the major electrostatic capacity of the power supply circuit, and will affect on the generation of arc discharge.
A power supply device, input device s and loading devices s. Because it is not favourable for the voltage jia the power supply device to be widely fluctuated due to operation of the equipment during test, the allowable range of such fluctuation has been revised so as to be a little bit severer.
Of above mentioned transient voltages.
In addition, grounding of whole test devices is necessary in order to the stabilization of reference potential and the safety during tests. As in particular case, when the vehicles for foreign dry lands are applied, test conditions test voltage, applying period, number of impressions iis otherwise be specified under agreement between the persons concerned, as making the test voltage 20KV or 25KV.
Keep the test specimen under the conditions for 2. Regarding above operations as one cycle refer to Fig. Of load jiss, A-1 and D-1 ate the tests for transient voltages caused by 8730 delayed response in field coil. Impressing method of voltage is specified to simulate a practical electrostatic discharge case that the electrode of the probe shall slowly approach to the impressing point so that the discharge within the air occurs.