This Japanese Industrial Standard has been prepared based on ISO C8304 revised in 1994 reviewing the contents as a product standard and quoting provisions concerning safety from a part of jis c8281-1.
JIS C 8304:2009 Referenced Document
JIS C 0920:2003 Degrees of protection provided by enclosures (IP Code)
JIS C 8340:1999 Boxes and box covers for rigid metal conduits
JIS C 8375:1992 Mounting frame for interchangeable wiring devices of large square boss type
JIS H 3100:2006 Copper and copper alloy sheets, plates and strips
JIS H 3110:2006 Phosphor bronze and nickel silver sheets, plates and strips
JIS H 3130:2006 Copper beryllium alloy, copper titanium alloy, phosphor bronze, copper-nickel-tin alloy and nickel silver sheets, plates and strips for springs