AS/NZS 5000.1 izintambo ezijwayelekile ezinomhlaba oncishisiwe ukuze zisetshenziswe kumapayipi amakhulu, ama-sub-main kanye ne-sub-circuits lapho evaleleke epayipini, egqitshwe emiseleni eqondile noma engaphansi komhlaba yezakhiwo nezitshalo zezimboni lapho zingekho ngaphansi kokulimala komshini.