ISO Road vehicles — Environmental conditions and testing for electrical and electronic equipment — Part 4: Climatic loads. ISO applies to electrical and electronic systems/components for road vehicles. ISO describes the potential environmental stresses . INTERNATIONAL STANDARD ISO Third edition Road vehicles — Environmental conditions and testing for electrical and.
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For dated references, only the edition cited applies.
The test duration is, respectively: Additional drying of the test 167504 air is not permitted. General  ISO With the device still operating, submerge it for 5 min in an ice water tank at least 10 mm deep. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights.
For undated references, the latest edition of the referenced document including any amendments applies. GeneralGeneva, Switzerland: ISORoad vehicles—Environmental conditions and electrical testing for electrical and electronic equipment, is an ISO standard which provides guidance regarding environmental conditions commonly encountered by 17650-4 and electronic systems installed in automobiles.
Figure 3 illustrates the temperature cycle with hot-soak phase, using code F as specified in Table 1. This happens when driving on wet roads during the winter.
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Mechanical loads Part 4: Key t a b c d e time, in h Operating mode 3. Views Read Edit View history. A permanent operation starting at Tmin would prevent this due to the electrical power dissipation.
Failure mode is electrical or mechanical malfunction caused by dust, e.
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The recommended time of operating mode 3. The operating mode of the DUT shall be 1.
The temperature and humidity profile has been defined to generate a dewing effect similar to that in the vehicle environment. If the equipment is splashed from various directions in the vehicle, then these directions shall be taken into account. Tests — Test L: Climatic loads  ISO Road vehicles — Environmental conditions and testing for electrical and electronic equipment — Part 3: Tests — Test N: Road Vehicles — Environmental conditions and testing for electrical and electronic equipment — Part 1: The minimum functional status shall be class B, as defined in ISOfor test 3.
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Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO’s member body in the country of the requester. ISORoad vehicles — Environmental conditions and testing for electrical and electronic equipment — Part 1: Use operating mode 3.
In addition, operate it electrically between min and min of the cycle see Figure 2. Functional status class A is required in phases with electrical operation mode 3. Raise the temperature from Tmin to Tmax within 30 s or less. Electrical loads Part 3: This test is relevant for plug contacts and open switching contacts.
Chemical loadsGeneva, Switzerland: Other systems shall meet minimum functional status class C up to the last hour and class A for the last hour. This part of ISO describes climatic loads. IP-code see ISO NOTE This is not a corrosion test. End of temperature rise.
An additional failure mode not addressed in 5. Failure modes are cracking of materials or seal failures caused by ageing and different temperature expansion coefficients. iao
Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. The operating mode of the DUT is 1.
Jso loads  ISO Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. ISO consists of the following parts, under the general title Road vehicles — Environmental conditions and testing for electrical and electronic equipment: NOTE This test is not intended to be a life test.
Operate the DUT with operating mode 3. Failure mode is corrosion.