In The Netherlands was pre 1977 ? The following colours applied
Green phase
Red neutral
Grey earth
Black phase switched to a light
then the new standard colours were applied
Brown phase
L. blue neutral
Grn/Yel earth
Black phase switched to a light
The system is non MEN with a separate earth which is used in quite a few countries in Europe. Also the non polarised plugs are used and the neutral is switched as well.
