1. IEC 61000‐4‐7: ‘Testing and measurement techniques—general guide on harmonics and interharmonics measurements and instrumentation for power supply systems and equipment connected thereto’. 2002
2. IEC 61000‐4‐30: ‘Testing and measurement techniques power quality measurement methods’. 2003
3. IEEE Std. 1159: ‘IEEE recommended practices for monitoring electric power quality’. 1995