dvtama.blogg.se - Portal test chamber 13

A lot of time is required to connect all the circuits to be included in the test, balance the current and insert the thermocouples. Note that temperature rise tests are time consuming.

Whilst this method of temperature rise testing involves a lot of testing, once it is completed it covers all the possible arrangements available in a flexible modular system, and avoids any concerns that may previously have arisen due to the specific arrangement supplied not being exactly as that tested.

Mechanical performance of assemblies and fixings.

Resistance of insulating materials to heat.

Effectiveness of the protective circuitĪnd there are also six tests designed to check the construction quality are added to the above type tests in standard IEC 61439-1.

They cover the following checks for type tests: By definition, standard assemblies only contain layouts that have undergone type tests. These assemblies are called ‘standard assemblies’. Seven type tests are carried out officially on low voltage assemblies representative of the usual wiring configurations and equipment layouts. To avoid checks and tests that take a long time, are sometimes destructive, and above all too costly, the standard permits them to be reduced to the minimum, using ‘type tests’ carried out and guaranteed by the manufacturer.