Nws yog qhov tsim nyog rau kev ntsuas kev tiv thaiv kev tiv thaiv hluav taws xob (IR), kev nqus qhov sib piv (DAR), polarization Performance index (PI), to tam sim no (Ix) thiab nqus capacitance (Cx) ntawm txhua yam khoom siv hluav taws xob siab, suav nrog switchgear, transformers, reactors, capacitors, motors, generators thiab cables, thiab lwm yam.