LV124 STANDARD PDF


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LV covers tests for electric and electronic components for use in motor vehicles up to 3,5 t with a 12 V electric mOhm. Tolerances & standard values. LV Automotive test standard bij Hielkema Testequipment. The LV includes several mechanical, climatic and life tests, such as the K damp heat. ISO , Road vehicles—Environmental conditions and electrical testing for electrical and electronic equipment, is an ISO standard which provides guidance .

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Meanwhile, many car manufacturers extend the standard waveforms with many variable parameters in time and amplitude. The data of the continuous parameter monitoring must be examined with respect to drifts, trends and irregularities.

Voltage- and current control

Test pulse “normal” acc. The test serves to verify the resistance to storage at high or low temperatures, e.

For temperature cycle tests, the DUTs must additionally be kept in the condition in which the temperature is maintained at the specified temperature basic values for a defined time, so that tensions in the component can be transferred to elongations. The DUT must not stanndard opened until after completion of the complete test sequence chapter 7.

There are many ways to control SIBO amplifier systems: During reverse polarity, the permissible limit values specified in the data sheet electrical and thermal must not be exceeded for any of the parts. All components must be tested with original connector or adapter starting with the test M Free fall.

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The purchaser reserves the right to check the laboratories and the laboratory procedures.

The test serves to ensure that a part that does not show any outwardly visible damage and therefore is installed in the vehicle, does not have any hidden damages or predamages, e. They also work as sink in applications to absorb power. Test parameters K Condensation test with electr.

The test serves to verify the resistance of the component to chemical changes on the housing and impairment of functioning due to chemical reactions. Standaed circuit E Short interruptions 4. ISOLv1224 vehicles—Environmental conditions and electrical testing for electrical and electronic equipment, is an ISO standard which provides guidance regarding environmental conditions commonly encountered by electrical and electronic systems installed in automobiles.

Output voltage and current can be limited and also over temperature shutdown is included. The test serves to verify the resistance of the component to malfunctions that may occur within a small interval of the operating stamdard range. Cascading One waveform can be simulated synchronously with several amplifiers Each DUT has its own sense. Electrical loads [2] ISO Test pulse E Jump start 4.

It must be observed that reverse polarity may occur several times and must not lead to component damage.

LV/ LV Tests – INSYS test

We also want to distinguish the modular design that allows to build up systems with up to 18 kW. A discontinuity of the curve due to positive pulses is not permitted. In addition, a parameter test functional test must be carried out after the upper and the lower test temperature have been reached. Hidden damages are not permissible. Each connector must be removed from the DUT for 10 s and then replaced. The time until this condition is achieved must be determined by the contractor through experiments and indicated in the test documentation.

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The test serves to verify the resistance of the component to faults, such as deformation or cracks. For high-voltage applications, instruments can be connected. Test condition For the first time, the condensation test must be performed prior to the final specification of the circuit layout hardware freezebut already with DUTs manufactured under conditions similar to standard production, to optimize detected condensation sensitivities, e.

Testing is carried out in two different operating statuses.

LV-124/ LV-148 tests with the eTS one

The test room temperature is controlled by means of the temperature-controlled water bath. Also with a tabular input all kinds of waveforms can be produced immediately.

Test parameters L Life test – high-temperature endurance test The test is carried out acc. Makro function With a comfortable macro editor and its execution, selected waveforms run sequentially.