Ubufakazi bokuqhuma kwe-Shenhai
Amabhokisi okuhlanganisa angaqhumi aklanywe ngezinhlobo ezimbili zokuvikela eziyinhloko: Igesi ingaqhumi futhi ingaqhumi.
Okokuvikela okungaqhumi kwegesi, izinga likazwelonke elilandelwayo lithi GB3836. Leli zinga licacisa imibandela nemihlahlandlela edingekayo ukuze kuqinisekiswe ukuphepha ezindaweni lapho kungase kube khona amagesi aqhumayo., ukuqinisekisa ukuthi amabhokisi okuhlanganayo angasebenza ngokuphepha ngaphandle kokushisa noma yimuphi umkhathi ongase ube yingozi.
Endabeni yokuvikela uthuli olungaqhumi, izinga elifanele likazwelonke lithi GB12476. Leli zinga lichaza izidingo zokusebenza okuphephile ezindaweni lapho uthuli oluvuthayo ingase iqongelela. Iqinisekisa ukuthi amabhokisi okuhlangana ayakwazi ukuvimbela noma yimuphi umthombo wokuthungela ukuthi ungahlangani nothuli oluvuthayo., ngaleyo ndlela kugcinwe ukuphepha ezindaweni ezinjalo.