Quality control and quality assurance (QA/QC) represents a

critical phase of electrical manufacturing process, but it is

not without its hazards. However, QA/QC workers in the

both the solar energy and electric motor manufacturing

sectors now enjoy a greater level of safety by taking ad-

vantage of true negative voltage. True negative voltage is

a state created by reverse polarity when polarity is nega-

tive in relation to the earth’s ground. While reverse polarity

poses a potential electrical shock hazard in a manufactur-

ing or operational environment, true negative voltage is

comparatively safe for electrical equipment operators

shown in Figure 1. In addition to improving safety, test

equipment utilizing true negative voltage more accurately

recreates real-world conditions for greater efficiency in

testing, which is why industry standards now call for using

true negative voltage in quality testing.

True Negative Voltage: The Right Way to Protect

Workers

EPV-500 Series with True Negative Voltage Technology

SE Series with True Negative Voltage Technology