When searching for the , you might also encounter related standards. Here is a quick comparison:
First published in 1997 (with a consolidated version in 2019), this standard specifies the methods and procedures for measuring the radio interference voltage (RIV) generated by high-voltage insulators. When an insulator is subjected to an electric field, partial discharges or corona effects can produce electromagnetic interference (EMI). This EMI disrupts nearby communication systems, radio signals, and sensitive electronic equipment. iec 60437 pdf
(the third edition), introduced several critical technical changes over the previous 1997 version: Inclusion of Composite Insulators When searching for the , you might also
The standard specifies the test procedure, circuit arrangement, and measurement methods to determine the radio interference voltage (RIV) or radio interference field strength generated by insulators used on high-voltage AC power lines. Connects the high-voltage circuit to the measuring device,
A capacitor that isolates the high-voltage circuit from the measurement device while allowing high-frequency noise to pass.
Connects the high-voltage circuit to the measuring device, allowing high-frequency noise to pass while blocking the power-frequency voltage.