Ibisobanuro bya THW THHN na THWN Wire

THHN, THWN na THW ni ubwoko bwose bw'insinga z'amashanyarazi zikoreshwa mu ngo no mu nyubako kugira ngo zitange amashanyarazi. Mbere, THWN THWN yari insinga zitandukanye zifite uburenganzira n'ikoreshwa bitandukanye. Ariko ubu, dore insinga rusange ya THHN-2 ikubiyemo uburenganzira bwose ku bwoko bwose bwa THHN, THWN na THW.

1. THW Wire ni iki?
Insinga ya Thw ihagarariye insinga ya thermoplastic, idashyuha kandi idacana amazi. Ikozwe mu cyuma gikonjesha umuringa na PVC. Ikoreshwa mu byuma by'amashanyarazi n'amatara mu nganda, ubucuruzi n'amazu yo guturamo. Ubwo bwoko bw'insinga bushobora gukoreshwa ahantu humutse kandi hatose, ubushyuhe ntarengwa bwo gukora ni 75 ºC kandi voltage yayo yo gukoresha mu bikorwa byose ni 600 V.

Nanone, ijambo rihinnye rya THW ntirigaragaramo "N" risobanura nylon-coated. Irangi rya nylon risa n'agace gato ka pulasitiki kandi ririnda insinga mu buryo nk'ubwo. Iyo nta nylon coated, igiciro cy'insinga za THW kiba gihendutse ariko ntigitanga uburinzi buke ku bibazo bitandukanye bifitanye isano n'ibidukikije.

THW Wire Strandard
• ASTM B-3: Insinga zoroshye cyangwa zikozwe mu muringa.
• ASTM B-8: Imashini zikora ibyuma zikozwe mu migozi y'umuringa mu byiciro bito, bikomeye, bito cyangwa byoroshye.
• UL – 83: Insinga n'insinga bitwikiriwe n'ibikoresho bya Thermoplastic.
• NEMA WC-5: Insinga n'insinga zishyushye hakoreshejwe ibikoresho bya Thermoplastic (ICEA S-61-402) kugira ngo zikoreshwe mu kohereza no gukwirakwiza ingufu z'amashanyarazi.

2. Umugozi wa THWN THHN ni iki?
THWN na THHN byose byongeraho "N" mu magambo ahinnye, bivuze ko byose ari insinga zitwikiriwe na nylon. Insinga za THWN zisa na THHN. Insinga za THWN ntizishobora gutwarwa n'amazi, bongeramo "W" mu magambo ahinnye. THWN irusha THHN mu mikorere idatwarwa n'amazi. THHN cyangwa THWN zose zishobora gukoreshwa mu byuma by'amashanyarazi n'amatara mu nganda, ubucuruzi n'amazu yo guturamo, zikwiriye cyane cyane gushyirwamo ibintu byihariye binyuze mu miyoboro ikomeye kandi zigakoreshwa mu bice bikurura cyangwa zandujwe n'amavuta, amavuta, lisansi, nibindi n'ibindi bintu byangiza nk'irangi, imiti isukura, nibindi. Ubwo bwoko bw'imiti