Production testing of insulated wiring, components and connectors can reduce waste and re-work time, optimize the manufacturing process and most importantly, ensure enduser safety.  It is important to understand what levels of testing, product performance and end-user safety are required. The manufacturer must be able to know with certainty that the product will be functional, meet customer’s objectives and comply with the relevant safety requirements.  These factors must be considered collectively to determine the level of testing that is necessary, whether that method is simply a quick visual inspection or a 100% test regimen including functional, low and insulated wiring, high voltage tests.