JIS Z 8703 PDF

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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Points revised of individual provision and supplemental explanation thereof 3. However, the test may be carried out by means of the method as specified hereunder: Further, should any discharge not be available in airthe discharging probe shall be contacted with the such designated portion. Typical values of transient voltages mis the above mentioned conditions are as follows, based on test results accumulated by the companies concerned, constants of parts of the test circuit are specified based on them: 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.

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 88703, it is not possible to identify due to which the behavior available has been changed, either temperature change or humidity change.

JIS Z 8703:1983

Measurement shall particularly be cared. A power supply device, input device s and loading devices s. The test duration suitable to actual conditions may, therefore, be selected under the agreement between the persons concerned, out of the three durations mentioned above, because the test duration may be shortened or be necessary to be extended according to the kind of equipment to be tested. Test conditions are specified separately for Type A impressing at terminalsand Types B and C impressing at operating portion according to the difference of the conditions the equipment is handled in use or the happening or the equipment with electrostatic discharge.

Confirm also the appearanceetc. Take the test specimen out of the chamber and keep it for 2 hours or more under room temperature, test it according to 5. 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.

The additional operations shall be carried 2 out subsequent thereto as specified hereunder: Appearance and other conditions of the test equipment at that time shall. Number of impressions is specified as 3 times or more, but about 10 times are desirable, impressing may be done not only between the earth terminal and all other terminals but alsoif necessarybetween each terminal and the case, and in particular case test conditions test voltage, applying period, number of impressions may otherwise be specified under agreement between the persons concerned.

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For 12V system, two kinds of voltages, 6V class 1 and 5V class 2are selected as the minimum voltage V. Because it is not favourable for the voltage from 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.

Subsequent operations shall be as follows: Some examples are given below for reference of temperature setting for these equipment. Typical values of transient voltages under the above mentioned conditions are as follows. Of load dampings, A-1 and D-1 ate the tests for transient voltages caused by the delayed response in field coil.

Further, carry out the test pattern specified in Fig.

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 jos malfunctions and bum out damage.

Herein this paragraph, the matters in respect of general requirements and major points of revisions on this time are explained. 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. Further, the constant temperature chamber shall be so constructed that the chamber does not receive the heat radiation directly from the heat source of the test specimen.

In respect of voltage application at the test in type B and type E, since the frequency of occurrence thereof is remarkably high as compared with the load damp subject to type A and type D, the opinion offered was accepted, under which it should be necessary for voltage to be applied more frequently to a considerable high extent.

Confirm the appearance, etc. As for the intensity of interference electromagnetic field to be impressed jsi the test, the numerical values of 0.

Confirm also the appearance, etc. The length of the grounding is desirable to keep constant within the range of 30—70cm. It is also expected that the voltage may rise near to the primary inductive voltage at jia time when the breaker is connected, according to the condition of arc discharge suppression. Since there had been no any problem on the method under which any one selected among the voltage and temperature shall be kept constant, such opinion was not accepted mainly due to a reason that it is not favourable to make the test requirement so complex.

General rules of environmental testing methods for automotive electronic equipment 1. Thereforefor the each, the general method to be applicable to electronic equipment for automobile has been specified as a representative requirement.

JASO D 英文版_百度文库

Of load dampings, A-2 and D-2 are the tests for transient voltages caused by the inverse electromotive force of the stator coil. Definitions Definitions of major terms used in this standard are as follows: Further, the car radio, audio players and TVs may be automotive jix equipments, but they have few necessary to meet severe environmental immunity as in the case of control electronic equipments. Jiz 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 ji equipment, radiated electric noise interference from the magnetic inductive interference caused by alternator, ignition systems high tension codes, spark plug etc.

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Thus such equipments shall be handled as Class 3 or class 4 equipments. In case of the equipment, the heat mass of which are utmost highiis 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.

In addition, the test apparatus for 14KHz to 30MHz frequency range electric fields may be the parallel strip line Explanatory Fig.

Supposed that those tests are required to evaluate any reliability, only the temperature and humidity test should be required. Type of tests are classified into conducted and radiated electromagnetic environments according to x propagation paths against troubles such as interferences, etc. Therefore care must be taken, 870 condensers in particular, since the Indicated and actual capacities of condensers are qpttodiffer each other.

Therefore, such details are left to the agreement between jiis persons concerned. 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. Shock shall be applied to the specimen in accordance with 2. For the latter, however, the conducted electromagnetic test method given in 5.

JIS Z – Free download ASME ICC CSA ASTM Codes

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.

Number of impressions jid specified as 3 times or more, but about 10 times are desirable. This standard is desirable to be applied to motorcycles, if possible, although the environmental conditions of motorcycles are not always the same as four wheelers.

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. Should so wide range of difference of temperatures be specified, it would be regarded 8730 a kind of thermal shock test.