Just wondering your views on this one.been to a school,they have problems with various fluroscent lights switching on,off,this only happens when they are using a dishwasher.The washer is a 230v 20 amp supply of local db,the lights also off db.Any explanation would be a help,been in touch with company who supplied washer,but no luck,maybe volt drop,but the supplies come straight from meter position.cheersSupply is a 230v 100 amp,tncs.