Neutral da kuma grounding da kuma ground contact yana da farko?
Don fahimta farkon da ke cikin Neutral, Ground, da kuma Earth, ya kamata a fahimtata ma'anar waɗannan abubuwa.
Neutral
Lurin neutral ta shirya hanyar zama rike rayukansu a tsarin jikin jiki, wanda aka gina don taka rayukan a lokacin da jiki ya yi aiki. Wannan rayukan ya faru ne daga hasukan bayanai masu phase da kuma karfi na 3rd da 5th harmonics.
Lurin neutral ta shirya hanyar zama rike rayukansu zuwa wurin mutummin jiki, wanda ya kammala tsarin jiki. A tsarin jiki a gida, ya taka rayukan daga abubuwan da suka yi aiki zuwa panelin kafin jiki ko wurin mutummin jiki.
A tsarin jiki da take yi aiki, voltajin a lurin neutral yana da kyau a ƙaramin zero volts. Yana taimakawa da sabbin voltaji da kuma inganta hasukan bayanai daga live (hot) zuwa neutral. Lurin neutral an gina don taka rayukan a lokacin da jiki ya yi aiki. Idan ana iya hasukan bayanai a kan live wire da neutral wire, zan iya nuna cewa akwai nau'in sarrafa ko short circuit, wanda za a tabbatar da ita don kawo jiki don cin hukuma.
Idan rayukan a lurin neutral ya kai tsari mai yawa na phase current, ya kamata a duba phase current a wasu halayen. Saboda haka, lurin neutral ana sani da "energized" a tsarin jiki da take yi aiki. Don in tabbatar da terminalin biyu a lurin neutral ya ci ƙaramin zero potential, ana kofin ta zuwa ground (misali, a tsarin jiki na gida, neutral an kofin ta zuwa ground don in taka hanyar zama rike rayukan zuwa transformer a substation).
Earth/Ground
Earth ko Ground an amfani da shi don hukuma, wanda ya shirya hanyar zama rike rayukansu mai suna a cikin tsarin jiki. Idan phase da neutral wires suka kofin zuwa wurin mutummin jiki, ground wire ta kofin zuwa kasufin abubuwan ko mafi girman abubuwan da ba suka taka rayukan a lokacin da jiki ya yi aiki. Amma, idan ana iya faɗi a kan insulation, ya kamata a taka rayukan mai suna—wadannan ba suka faru ne daga live (phase) wire baki daya, amma daga hanyoyin masu suna da ba suka taka rayukan a lokacin da jiki ya yi aiki.
Wadannan rayukan suna da kyau a ƙaramin main line current (kadan a milliamperes, mA), amma zai iya tasiri da hukuma ko fire, wanda za iya haifar da canza mai zurfi. Don in ƙare wannan al'amuran, an shirya hanyar zama rike rayukan zuwa earth ta hanyar ground wire.
Saboda abubuwan da suke amfani da shi, grounding da neutral wire da kuma protective ground ba sa fi amfani da shi, musamman har da hakan, duk da cewa duka suka amfani da ground (ammat hanyoyin suke diffe). Idan ana kofin, ground wire—wanda ba suka taka rayukan a lokacin da jiki ya yi aiki—zai iya haifar da charges da kuma zai iya haifar da hukuma.
Farkon da ake cikin Earthing da kuma Grounding
Ba ake da farko a kan "Earthing" da "Grounding"; wadannan kalmomin suke amfani da shi. Amfani da shi yana ƙungiyar da standards:
