Nkọwa dị mkpirikpi:

Mbadamba nkesa HDB-A dị nwere nnukwu ibu ma ọ bụ mgbakọ pan nke kewara ekewa. Ha nwere ọnụ ụzọ igwe dabara adaba nke ọma nwere ụdị njide “slam”. A na-ebunye bọọdụ niile na ogwe ndị nọpụ iche na nke ụwa dabara adaba na nnọpụiche bụ iji kechie ngwaọrụ na-abata iji hụ na oghere wiring l dị maka ngwaọrụ ndị na-apụ apụ ngwaọrụ na-abata ga-ahọpụtarịrị ma tinye ya nke ọma site na installer Efere n'elu na ala gland bụ nke mbughari yana gụnyekwara ịkụ aka-outs ka suitl guzoro nha conduds. The nan awmbly bụ n'ụzọ zuru ezu shruried na hushart bụ otu niere na desian a ana achi achi na nn "na-ekpo ọkụ snots? efehe ocrut dị ka thereate dịghị n'ibu nkwonkwo. The mbadamba contirmed toBSEN 60439-1 &3.