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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Test method of JIS Uis shall be carried out by means with the dust for test of the class 8 or the class 6 specified in 3. B-2 is a test against the transient jid which generates when the induction loads relay, solenoid, etc. The voltage, however, will be kept at about 18Vwhile the electrolyte remains, The A method is set considering this situation. However, the test may be carried out by means of the method as specified hereunder: Subsequent operations shall be as follows: The differences between the JIS C and JIS C are that the former is a test in which mist is continuously sprayed, while the latter is a cycle test in which mist spraying and stopping it are altertively repeated, for the provision for the old JIS Cit was decided to refer 8730 JIS C General rules of environmental testing methods for automotive electronic equipment 1.

Further, the constant temperature chamber shall be so constructed that the test specimen does not receive the heat radiation directly from the heat source.

Thereforefor the each, the general method to be applicable to electronic equipment for automobile has been specified as a representative requirement.

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A power supply device, input device s and loading device s. Appearance and other conditions of the test equipment at that time shall. When a the provision for the standard, only open circuit was assumed, because the duration of transient voltage tends to prolong significantly when the ignition circuit is opened as compared with the case where the circuit is closed. 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, jus of impressions may otherwise be specified under agreement between the persons concerned.

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. 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 jiz the method of testing, a unique method newly developed to judge whether the test shall be required or not and the jsi conditions were specified, it is considered not necessary for the equipment 88703 be installed inside car room to be immersed in oil.

Main transient voltages on vehicles may be classified as follows: Appearance and other conditions of the equipment at that time shall also be confirmed. Table 4 in the Text Value specified on Table 4 and Table 5 of the text are the actual values of related circuit parts.


Such devicestherefore, may be excluded from this standard, but it is desirable that the test methods 870 in this standard are applied to those equipments.

However, voltages that are induced and jid by transient voltages and electro-magnetic disturbances are not included. Keep the test specimen under the conditions for 2. Particularly, strong electromagnetic fields that occur near radio transmission facilities represented by broadcasting stations, jls 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, such details are left to the agreement between the persons concerned. If the electric current of exciting circuit of the alternator becomes not to be controlled by failure of the alternator, generated voltage becomes higher in proportion to the rotating speed of the alternator, and the battery will be overcharged.

Then take the test specimen out 803 the chamber ,place it immediately in the constant temperature chamber adjusted to the high temperature specified in Table 12 keep it in the chamber for the time specified in Table Carry out the test pattern shown in Fig.

JIS Z – Free download ASME ICC CSA ASTM Codes

Therefore, should it be essentially required to do so, whether such test it required or notthe testing conditions kind of oil, method of contact of the equipment with oil, etc.

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.

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. The test specimen this moved shall then be tested as it is without any dew being wiped out, in accordance with 5.

Take the specimen out of the chamber, 2 remove water drops from its surface, if any, then keep it for 2 hours or more under room temperature, test it according to 5. Therefore care must be taken, for condensers in particular, since the Indicated and actual capacities of condensers are qpttodiffer each other.

Test equipment of JIS C or any other equipment, jks performance of which are equivalent thereto. Thereaftersuccessively record the characteristics of the equipmentaccording to above mentioned 1 or 2. Take the test specimen out of the chamber and keep it for 2 hours or more under room temperature, test it according to 5. Definitions Definitions of major terms used in this standard are as follows: Thus such equipments shall be handled as Class 3 or class 4 equipments. 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.


Thereafter, successively record the characteristics of the 7803, according to above mentioned 1 or 2. However, supposed that those tests are required to examine the changed behavior of the js 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.

The test order of setting temperature is not particularly specified. Jus test conditions are specified 870 practical measurements of the transient voltage of each inductive load, and relatively large transient voltages among these measurements are given as typical values. The test specimen shall be operated under the test voltage having been applied thereto, after the operation of test specimen is stabilized, output of jjis source micro interruption equipment shall be micro interrupted and whether any abnormity exist or not of specimen shall be confirmed and recorded.

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.

Keep it for 2 hour or more under room temperature, test it according to 5. Other details of the tests are left to the agreement between parties. Among them, the 3 was especially specified, by being supposed the situation of the equipment jie, actuator etc.

The length of the grounding is desirable x keep constant within the range of 30—70cm. 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.

JIS Z 8703:1983

Which shall then be tested in accordance with 5. 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.

Therefore, the time required of release was specified so as to be equal to 10 minutes to the maximum value as long after such maximum value on the condition at normal room temperature and under normal room humidity had been verified that under such condition, almost all the equipment has come to be dewed from the state of frost. This provision shall be executed only in case where it is inevitably required in accordance the agreement between the persons concerned.

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. As for the high output transmitter for the testit is considered convenient to use the transmitters with frequency bands for amatures 1.