Cholinga chimene anthu ambiri amagwiritsa ntchito poyendera magetsi ndi ntchito yolakwika ya NM (yopanda zitsulo) m'malo oonekera, monga makoma osungira maziko kapena pambali pa zipilala ndi malo osakanikirana. Makhalidwe a Getsi Onse, omwe ali maziko a ma code onse a kumalo, ali ndi malamulo apadera a kukhazikitsa mawaya a magetsi kuti atetezedwe kuwonongeka.
Kugwiritsiridwa Koyenera kwa NM Cable (Romex)
NM cable, yomwe imadziwikanso ndi dzina lachitukuko dzina lake Romex), ndiyo njira yowonjezera ya magetsi.
NM chingwe ndi chabe mtolo wa makina opanga opangidwa ndi pulasitiki wamkati. Kawirikawiri zingwe zimanyamula ma foni 10, 12, kapena 14-gauge. Kuyika pa chingwe cha NM kumapereka pang'ono pang'onopang'ono pofuna kutetezera kuwonongeka kwa thupi, kotero zimavomerezedwa kuti zigwiritsidwe ntchito pokhapokha ngati zingwe zimatetezedwa kuwonongeka, kuphatikizapo:
- M'kati mwa khoma zamatabwa zomwe zili ndi matabwa omaliza, kumene chingwe sichingafikire
- Kuthamanga pakati pa zida zowonongeka, zinapereka kuti zipangizo zimachotsedwa kutali ndi nkhope ya mamembala omwe amatumiza. Izi nthawi zambiri zimakhala ndi mabowo osungunuka m'zipinda za mamembala omwe amapanga zidazo.
Kugwiritsa Ntchito Bwino NM Cable
Chigamulo cha Magetsi Chake Chimaletsa Kugwiritsa Ntchito NM cable (Romex) pamene ziwonekera momwe chiwonongeko cha thupi chingatheke. Kawirikawiri, izi zimawonekera pamene katswiri wa zamagetsi amachititsa kachipangizo ka NM kutsogolo kutsogolo kwa zida kapena padothi, kapena kumakhala pambali pamakoma a maziko.
Ngakhale kuti ndilololedwa kuti chingwe cha NM chiziyendayenda m'mabowo omwe amawotcha anthu, sichikhoza kuikidwa pambali pamaso, chifukwa izi zimapangitsa kuti zingwe ziwonongeke. Mofananamo, NM yokhazikika pa nkhope ya konkireyi imatha kuwonongeka ndipo imachotsedwa.
Wiring Wokongola kwa Malo Odziwika
Komabe, pali njira yovomerezeka yogwiritsira ntchito mipiringidzo kudutsa pamalo oonekera. Muzochitika izi, njira yoyenera yowakonzera ndi kukweza khola lovomerezeka kupyola mamembala kapena khoma, kenaka muthamange mawaya ena a THNN mkati mwake. Uphika woterewu umatetezedwa bwino kuti usamawonongeke.
Mndandanda wachindunji wochokera ku Code National Electrical Code ukulembedwa motere:
Chitetezo ku Kuwonongeka Kwathupi. Chingwecho chidzatetezedwa ku kuwonongeka kwa thupi komwe kuli kofunikira ndi chingwe cholimba, chingwe chamagetsi, magetsi a zitsulo, Pulogalamu 80 PVC, mtundu wa RTRC womwe uli ndi chokwanira -XW, kapena njira zina zowvomerezeka.
Mtundu wochuluka kwambiri wa dzira umadziwika kuti EMT (Electrical Metallic Tubing), koma mitundu ina ya denga imagwiritsidwanso ntchito, kuphatikizapo FMC (mankhwala osungunulira zitsulo), IMC (yomwe ili pakatikati ya chitsulo, yomwe imakhala yosasunthika ndipo imapangitsa kuti thupi likhale lolimba), PVC (pulasitiki, yomwe amagwiritsidwa ntchito mobisa pansi), ndi RMC (chingwe cholimba kwambiri chachitsulo, choyezera kwambiri kuposa china chilichonse).
Mphepete yamagetsi imapangidwa kuti igwiritsidwe ntchito ndi mitundu yeniyeni ya waya wothandizira. Ma waya wamba ndiwo THHN, waya, omwe amatha kupanga mawaya amkuwa ndi mapuloteni a mitundu yozungulira, omwe amawotcha kutentha.
Mipukutu ya Getsi Yonse ya Magetsi imakhala ndi malamulo enieni omwe angapangire mawaya angapo m'kati mwa mlingo wa kukula kwake. Mtsinje wa 1/2-inch ukhoza kugwira makina ochuluka okwana zisanu ndi anayi kapena khumi ndi zisanu ndi ziwiri. Mphepete ya 3/4-inch ingagwire mafayili khumi ndi asanu ndi limodzi khumi ndi awiri kapena ma waya makumi awiri ndi awiri.
Kodi NM Cable Inside Conduit?
Ngati woyang'anira magetsi atsegula chingwe cha NM chomwe chagwiritsidwa molakwika, mukhoza kuyesedwa kuti muyike njirayo, ndikugwiritsanso ntchito NM chingwe chomwecho pochiyendetsa mumtsinje watsopano. Iyi ndi nkhani ya kutsutsana pakati pa magetsi. Anthu ena amanena kuti NM chipangizo chamkati mkati mwake chimatha kutentha kwambiri ndipo sichiloledwa. Ena amayang'ana mwachidwi. Pamene Code ya Malamulo Yachiwiri sichitsutsa mwachindunji kuika NM chipangizo mkati mwake, mwachizoloŵezi, zimakhala zovuta kwambiri kuchita, ndipo ochepa magetsi odziwa zamagetsi adzachita izi.
Ndizovomerezeka kuyendetsa okha THHN conducors (kapena mtundu wina wovomerezeka wa waya) mkati mwa njira. Mitambo ya THHN ndi yotchipa ndipo ndi yosavuta kuyenda mozungulira.