Cirris Testing Tips

Errors Caused by Bad Insulation

Posted by Sarah Landeen on Apr 27, 2018 9:53:41 AM

Keeping wires isolated means having good insulation. But sometimes the insulation can be the reason for a cable failing. If the insulation is damaged or insufficient, it can cause errors in the cable.

The most common error is a short, which is an unintended connection between two points. The insulation is not keeping the wires isolated and current is leaking. A low voltage test will find the short.compress-350-c

Sometimes the insulation is not weak enough to be found in a low voltage test. The insufficient insulation will only manifest later when the situation could be potentially dangerous. Running a high voltage test can alert you to the weak insulation so it can be fixed before ever becoming a problem.

Understanding the causes of weak insulation can help you fix them and prevent the problem from reoccurring. The bad insulation can be caused by anything from loose metal particles to solder bridges. The image shows insulation being compressed by a plastic tie wrap. Cirris wrote an article in our Learning Center showing common causes of bad insulation. If you are experiencing issues with insulation, check out the table by clicking the link below.

Causes of Bad Insulation


Further Reading:

Insulation Compression Failures

3 MORE Reasons You Should Invest in High Voltage Testing

Faster Hipot with High Speed Mode

Topics: Testing Guidelines

Follow this blog to...

Learn tips for improving testing

Testing cables and harnesses is a quality control system. Through this blog you can learn how to guarantee your test process and ensure no defects ever mar your assemblies.

Discover Cirris product features

Cirris test systems and accessories have many helpful features that could benefit your test process.

Join the conversation

Share your comments for different articles. You may answer someone's question and have advice given to you in return.

Subscribe to Cirris Tips

You may also like...