401====Irish Standard 401:1997 "Safety requirements for rewirable and non-rewirable 13 A fused plugs for normal and rough use having insulating sleeves on live and neutral pins" is the equivalent of BS 1363 in Ireland.
401 Safety Requirements for Rewireable 13A Fused Plugs for Normal and Rough Use Having Insulating Sleeves on Line and Neutral Pins», который по большей части похож на BS 1363.