1. Thaum txhim kho lub cable davhlau ya nyob twg, lub semi-conductive shielding txheej yuav tsum tau muab tshem tawm, thiab lub rwb thaiv tsev yuav tsum tsis txhob puas thaum lub sij hawm ua hauj lwm. Riam cim thiab qhov tsis sib xws yuav tsum zam. Yog tias tsim nyog, cov ntawv xuab zeb yuav tsum tau siv los ua kom nws du; lub shielding kawg yuav tsum tiaj tus thiab graphite Txheej (carbon hais) raug tshem tawm.
2. Cov ntaub thaiv npog tooj liab thiab steel armor ntawm cov yas insulated cable kawg yuav tsum tau zoo hauv av. Lub hauv paus ntsiab lus no tseem yuav tsum tau ua raws li luv luv Circuit Court kom tsis txhob cuam tshuam lub zog hluav taws xob ntawm qhov kawg ntawm cov hlau armor thaum lub sijhawm ua haujlwm tsis sib npaug ntawm peb theem, thiab txawm tias" hluav taws" thiab hlawv lub plhaub. Tos qhov kev huam yuaj. Cov hlau lead hauv av yuav tsum tau tinned braided tooj liab hlau, thiab soldering hlau yuav tsum tau siv thaum txuas nrog tooj liab daim kab xev. Nws tsis tsim nyog siv lub tshuab ziab khaub ncaws los kaw thiab solder, thiaj li tsis txhob hlawv cov rwb thaiv tsev.
3. Cov ntaub thaiv peb-theem tooj liab yuav tsum tau txuas nrog hauv av xaim nyias. Nco ntsoov tias cov ntaub thaiv npog hauv av hlau thiab steel armor hauv av hlau yuav tsum tau coj tawm nyias thiab insulated ntawm ib leeg. Txoj hauj lwm ntawm vuam av hlau yuav tsum tsawg li tsawg tau.
