Makina ambiri mumzinda wamakono ali ndi makina osakanikirana, kapena NM cable (yomwe imadziwika ndi dzina lotchedwa Romex ). Chingwe cha NM chiyenera kuthandizidwa ndi kukonza pamene ikuyenda kudzera pamakoma, miyala, ndi pansi. Code Code National Electrical Code (NEC) ikufotokoza ndondomeko zopezera chipangizo cha NM ndi magetsi ena a magetsi. Ambiri ogwira ntchito kumanga akutsatira ndondomeko za NEC, koma mulimonsemo, malamulo am'deralo ndi omwe muyenera kutsatira, ndipo ndizofunikira zomwe mukuyenera kukumana nazo.
Kusunga zingwe kumapewa kuthamanga kochulukira komwe kungathe kumasula malumikizowo kapena kutengera kuwonongeka kwa chingwe.
General Cable Support
Kuthamanga kwa chingwe cha NM chiyenera kuthandizidwa osachepera masentimita 54. Ayeneranso kutetezedwa mkati mwa bokosi la magetsi lomwe limaphatikizapo kupukuta chingwe kapena mkati mwa masentimita asanu ndi atatu a bokosi kapena malo osakanikirana popanda chingwe. Kumbukirani kuti "kuthandizira" sikutanthawuza kumangirira chingwe kuti ipange. Mwachitsanzo, ali ndi makina opangira chingwe mkati mwa khoma lopangidwa, chingwecho chimadutsa mumabowo akulowetsa kumapiri a pakhoma. Pamene chingwe chikuyandikira bokosi lamagetsi, zimapangitsa kuti kuthamanga kapena kutsika kumbali ya mphukira ku bokosi ndipo imamangidwa (nthawi zambiri ndi chingwe chaching'ono) kumbali ya pati mkati mwa masentimita 8 kapena 12 mu bokosi, monga mukufunira. Mwachizoloŵezi ichi, zambiri za chingwe zimathandizidwa ndi kukhazikitsa koma sizakhazikitsidwa pa kukhazikitsa.
Zosankha
Zingwe nthawi zambiri zimakhala zotetezedwa kuti zikhale ndi zipangizo zamakono kapena ndi "zipangizo zamakina" zomwe zimakhala ndi zingwe zambiri pamalo amodzi. Mawu akuti kabelesi kawirikawiri amagwiritsidwa ntchito pofotokozera
Kusunga Zingwe
Ything kuchokera ku chimale chofanana ndi U kuti zikhale ndi misomali ndi zida za pulasitiki. Pali malamulo ochepa oyenera kutsatira pakusankha ndi kukhazikitsa zofunikira zowonjezera ndi zina:
- Gwiritsani ntchito kukula koyenera kwakulumikiza kwa kukula ndi nambala ya zingwe zotetezedwa.
- Gwiritsani ntchito mankhwala osungiramo zinthu komanso zolimba. Pewani zida zakuda zitsulo, ndipo musagwiritse ntchito mankhwala osakaniza kapena othandizira ena omwe sanagwiritsidwe ntchito zowonjezera magetsi.
- Pangani zipangizo zamatabwa zonyamula pakhomo kuti zisawathandize; musatseke zingwe pamphepete.
- Nkhosa zotetezeka zimawombera koma osati molimba kwambiri kuti chingwecho chawonongeka kapena chimachokera ku fastener.
- Gwiritsani ntchito chingwe chimodzi chokha pansi pa chovala chilichonse, nthawi zambiri. Nthawi zina zimaloledwa kupeza awiri awiri (kuphatikizapo pansi) zingwe pansi pa imodzi yokha, mwachitsanzo, koma ndibwino kuti musagwirizane ndi zingwe. Sichiloledwa kukhala ndi chingwe choposa 3 chimodzi pansi pa imodzi yokha.
- Gwiritsani ntchito tizilombo tomwe timagwiritsira ntchito stacker kuti tipeze zingwe zingapo kwa membala wofananayo. Izi zimalola kuti zipangizozi zikhomerenizidwe kuti zikhale zowonongeka bwino. Zithunzizo zimakhomeredwa kapena kuziwombera pa kukonza, ndipo zingwe zimatetezedwa powakwapula kumalo otsetsereka.
- Pewani kutsogolo kwachingwe nthawi yomweyo mutatha bokosi, dzenje lakuda, kapena chimbudzi kapena chojambula. Zingwe siziyenera kuikidwa muzitsulo zazing'ono kuposa maulendo asanu.
Musaiwale Kusintha
Malamulo obwezeretsa ntchito amagwiritsidwa ntchito pamene zingwe zimatha kudutsa mumayenje akukonzekera kapena pamene zimayenda mofanana, ndipo zimatetezedwa, kumbali zonse.
Izi zimaphatikizapo njira zambiri zothandizira pakhomo kumapeto. Lamulo lokhazikitsa malamulo ndiloti zingwe ziyenera kukhala osachepera 1/4 mainchesi kuchokera kumaso a mamembala omwe amapanga. Pakhoma, padenga, pansi, kapena padenga lopangidwa ndi matabwa (2 x 4, 2 x 6, etc.) nkhopezi ndizitali zopingasa zomwe zimaphimbidwa ndi zowuma kapena zina. Ngati zofunikirazo sizingakwaniritsidwe, muyenera kuteteza chingwecho mwa kuyika mbale yachitsulo yomwe imayang'ana kutsogolo kwa malo, yomwe imayang'ana pa malo a chingwe. Zofunika zotsitsimula zimatanthauzanso kuti zingwe sizingatheke pambali pafupipafupi 2 x 4 masukulu; palibe malo okwanira kuti apereke zingwe ziwiri zokha. Ndiko kumene kulipangidwira mtundu wa stacker kumakhala kovuta kwambiri.