High kub-resistant qib enamelled multi-strand liab qab tooj liab xim stranded hlau ceev them lub hwj chim mov rau automotive zog tsheb

1 、 Cov qauv thiab cov khoom siv

1. Stranded hlau: kuj hu ua multi-stranded hlau, hais txog lub concentric stranding ntawm ntau strands ntawm ib enamelled hlau ntawm tib specification, thiab stranding kev taw qhia ntawm txhua txheej yog alternately thim rov qab.

2. Strand ntev: qhov sib piv ntawm qhov ntsuas qhov kev ncua deb mus rau tus naj npawb ntawm qhov tig yog qhov sib tw ntev (pitch) ntawm cov hlua khi

3. Tus naj npawb ntawm kev sib koom: raws li tus neeg siv khoom tau teev tseg;

4. Twisting kev taw qhia: yog hais txog kev coj mus rau hauv cov txheej txheem tsim khoom, uas feem ntau muab faib ua qhov zoo (S), piv txwv li clockwise kev taw qhia, thiab thim rov qab (Z), piv txwv li counterclockwise kev taw qhia.

2 、 Kev siv tus qauv

Xa mus rau IEC JIS GB thiab lwm yam qauv ntawm enamelled hlau

3 、 Kev soj ntsuam specification

1. Cov kev xav tau ntawm qhov pom kev zoo nkauj yog glossy, tsis muaj kev puas tsuaj rau cov xim pleev xim, tsis yooj yim rau khawb tawm cov xim zaj duab xis nrog rau cov ntsia hlau, tsis muaj qhov sib tw xoob xoob xoob, dhia thiab lwm yam tshwm sim, thiab cov xaim yog huv si thiab zoo.

2. Twist ntev yuav tsum tau: coj 500mm qauv, tawm 100 hli nyiaj pub rau ob hnub kawg ntawm 500mm qauv, coj ib tug strand ntawm enameled hlau los ntawm qhov pib kawg kom loosen, thiab maj mam loosen tus naj npawb ntawm lem ntawm kawg a mus rau kawg b, thiab sau cov ratio ntawm tus naj npawb ntawm lem mus rau qhov ntsuas nyob deb. Tus nqi tau txais yog qhov sib tw ntev ntawm cov xaim enameled stranded, coj ib qhov chaw decimal, thiab qhov dav dav yog ± 1mm.

3. Kev suav cov txheej txheem ua tiav txheej kab ntawm cov hlua khi Z: D = 1.155 × √ N × d

D = stranded hlau Z loj sab nraud coefficient = 1.155 N = tus naj npawb ntawm cov hlua khi hlua d = ib leeg enamelled hlau Z loj tiav sab nraud coefficient = 1.155

Cov qauv kev suav no tsuas yog siv rau kev siv xwb.

4. Kev tshuaj xyuas qhov tawg ntawm cov hlau enamelled stranded: quav txhua tus qauv nrog qhov ntev ntawm 500MM hauv ib nrab thiab ntswj nws raws li qhov teeb tsa hauv Table 1. Tom qab twisting, txiav qhov kawg ntawm cov qauv thiab tawm hauv nruab nrab ntev ntawm 120MM. Qhov kawg ntawm cov hlau yog muab faib ua ob raws li tus naj npawb ntawm cov strands. Ib kawg yog nyob rau hauv lub xeev qhib Circuit Court, thiab lwm kawg yog immersed nyob rau hauv tin raws li qhov ntsuas kawg. Clamp ib qho ntawm cov tin dipping qhov chaw nrog qhov zoo electrode thiab lwm yam nrog qhov tsis zoo electrode, thiab tom qab ntawd qhib lub ntsuas ntsuas rau kev kuaj. Lub hauv paus ntsiab lus yog kom uniformly tsa qhov voltage kom txog thaum cov qauv xim zaj duab xis tawg. Lub sijhawm no, tus nqi tso tawm ntawm qhov ntsuas yog qhov voltage tus nqi ntawm cov qauv.

5. Stranded insulated hlau yog ua los ntawm ntau-stranded enameled hlau los ntawm lub tshuab stranding, thiab nws voltage yuav tsum tau txiav txim raws li cov xov tooj ntawm strands. Tus qauv voltage yuav raug txo qis raws li tus naj npawb ntawm cov strands nce. Kom paub meej, muab qhov sib piv raws li tus qauv ntawm enameled hlau. Xa mus rau (JISC3202-1994).

5.1 Thaum tus naj npawb ntawm cov strands (N) tsawg dua 20, qhov tawg voltage ntawm cov hlua khi yog V = qhov tawg ntawm ib qho enamelled hlau * 90%.

5.2 Thaum tus naj npawb ntawm cov strands yog 20 ≤ N ＜ 60, qhov tawg voltage ntawm stranded hlau V = qhov tawg voltage ntawm ib enamelled hlau * 80%.

5.3 Thaum tus naj npawb ntawm cov strands yog 60 ≤ N ＜ 120, qhov tawg voltage ntawm stranded hlau V = qhov tawg voltage ntawm ib enamelled hlau * 70%.

5.4 Thaum tus naj npawb ntawm cov strands yog N ≥ 120, qhov tawg voltage ntawm stranded hlau V = qhov tawg voltage ntawm ib enamelled hlau * 60%.