The requirements for 950 are as follows: Primary to secondary (250V) = 5.0mm (reinforced)
Primary to secondary (400V) = 8.0mm (reinforced) Line to line (250V) = 2.5mm (operational) Primary to ground (250V) = 2.5mm (basic) Primary to ground (400V) = 4.0mm (basic) The requirements for 601 differ and from what I remember are more stringent. I believe the requirements are 8.0mm for primary to secondary (reinforced), and 3.0mm for line to line (functional), and 3.0mm?? (basic) from primary to ground. If you have products that need certification to both of these standards, obtaining a copy of each standard will be well worth the investment. Regards, Ed
