Information On Insulation Fault Finding

Information 

Observe the following specifications for all the work described:

• Country-specific, national, legal and official regulations,
• Local restrictions and export restrictions,
• Manufacturer specifications from component and vehicle manufacturers,
• Component-specific specifications.

These strict specifications apply in particular to:

• Storage, installation and removal, transport and disposal of vehicles, assemblies, operating materials and auxiliary materials,
• Handling defective and potentially hazardous vehicles as well as assemblies,
• Handling battery electric vehicles and high-voltage components.

Consider relevant and qualified sources of information such as local authorities, competent importer, associations and specialized websites for this purpose. Only deliver items to be disposed of to authorized reception points.

These regulations to be complied with have to be checked, observed and, if necessary, documented by the person responsible for the vehicle for all life phases and work.

• The measurements must be performed using the insulation tester > VAS 6838 - Insulation tester  .
• A measuring voltage of 500 V  must be selected.
• To obtain the required measuring resistance, the measuring voltage must be present on the insulation tester until a stable measured value  is displayed.
• Two measurements must always be performed for each measuring point. Positive terminal on shielding and negative terminal on shielding.
• A measurement is only regarded as being within the tolerance range if both measured values (positive terminal on shielding and negative terminal on shielding) are within the tolerance range.
• The direction of measurement of the insulation tester does not affect the test result.
• The measured values must be documented in the "Insulation fault finding test log".
• The measurement process must be repeated after replacing a component in the high-voltage system.
• The high-voltage lines at the power electronics and the E-box (screwed connections) have 5 mating cycles. If these 5 mating cycles are exceeded, a visual inspection must be performed on the high-voltage connectors. Then contact Technical Support.

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Insulation fault finding