This standard is a manually operated indoor high-voltage disconnector (hereinafter referred to as a disconnector) used in high-voltage power receiving equipment used by consumers to receive power from electric utilities, with a total voltage of 6.6 kV and a frequency of 50 Hz or 60 Hz. stipulate the following.
JIS C 4606:1993 history
2011JIS C 4606:2011 Indoor use disconnectors for 3.3 kV or 6.6 kV