Minimum values ​​of creepage distances and clearances for motor-type electrical equipment

GB14711 imanena kuti mtunda wa creepage ndi chilolezo chamagetsi chamagetsi otsika kwambiri chimatanthawuza: 1 ) Pakati pa ma conductor omwe amadutsa pamwamba pa zinthu zotetezera ndi malo. 2) Mtunda pakati pa magawo owonekera amagetsi osiyanasiyana kapena pakati pa ma polarities osiyanasiyana. 3) Mtunda pakati pa mbali zowonekera (kuphatikiza mawaya a maginito) ndi magawo omwe ali (kapena angakhale) okhazikika pamene injini ikugwira ntchito.Mtunda wa creepage ndi chilolezo chamagetsi zimasiyana malinga ndi mtengo wamagetsi ndipo ziyenera kutsata zomwe zili mu Table1.Kwa ma mota omwe ali ndi voliyumu yovoterawa 1000V ndi kupitilira apo, mipata yamagetsi pakati pa magawo osiyanasiyana owonekera kapena magawo osiyanasiyana a polarity mubokosi lolumikizirana komanso pakati pa magawo owonekera (kuphatikiza mawaya amagetsi) ndi zitsulo zosanyamula kapena zitsulo zosunthika komanso mtunda wa creepage suyenera kukhala. zochepa poyerekeza ndi zofunikira mu Table 2.

Table 1Chilolezo chocheperako chamagetsi ndi mtunda wa creepage pansi pa ma voltages osiyanasiyana pamagawo amoyo am'munsimu1000V

mpando wa kanyumba no	Zigawo zogwirizana	Mphamvu yapamwamba kwambiri yokhudzidwa	Mipata yochepa: mm
			Pakati poyera magetsi zigawo zosiyanasiyana polarities		Pakati pazitsulo zomwe sizimanyamula ndi zida zamoyo		pakati pa zitsulo zochotseka nyumba ndi mbali moyo
			chilolezo chamagetsi	Mtunda wa Creepage	chilolezo chamagetsi	Mtunda wa Creepage	chilolezo chamagetsi	Mtunda wa Creepage
H90ndi apa motere	Pokwerera	31-375	6.3	6.3	3.2	6.3	3.2	6.3
	Pokwerera	375-750	6.3	6.3	6.3	6.3	9.8	9.8
	Magawo ena kupatula ma terminals, kuphatikiza mbale ndi ma posts olumikizidwa ndi ma terminals	31-375	1.6	2.4	1.6	2.4	3.2	6.3
		375-750	3.2	6.3	3.2^*	6.3^*	6.3	6.3
H90kapena pamwamba motere	Pokwerera	31-375	6.3	6.3	3.2	6.3	6.3	6.3
	Pokwerera	375-750	9.5	9.5	9.5	9.5	9.8	9.8
	Magawo ena kupatula ma terminals, kuphatikiza mbale ndi ma posts olumikizidwa ndi ma terminals	31-375	3.2	6.3	3.2^*	6.3^*	6.3	6.3
		375-750	6.3	9.5	6.3^*	9.5^*	9.8	9.8
* Waya wa maginito amatengedwa ngati gawo lamoyo losasunthika.Kumene voteji si upambana 375 V, osachepera mtunda wa 2.4 mm kudzera mpweya kapena pamwamba ndi chovomerezeka pakati pa maginito waya, amene mwamphamvu amapereka ndi unachitikira pa koyilo, ndi akufa zitsulo mbali.Kumene voteji sikudutsa 750 V, malo a 2.4 mm amavomerezedwa pamene koyiloyo yayikidwa moyenerera kapena kutsekedwa.


Mtunda wa creepage pakati pa zida zolimba zolimba (monga ma diode ndi ma thyristors m'mabokosi achitsulo) ndi chitsulo chothandizira pamwamba pazachuma chikhoza kukhala theka la mtengo womwe wafotokozedwa patebulo, koma sichikhala chochepera 1.6mm.

Table 2Zilolezo zocheperako komanso mtunda wautali wa magawo amoyo amotani pamwambapa1000V pansi ma voltages osiyanasiyana

Zigawo zogwirizana	Mphamvu yamagetsi: V	Mipata yochepa: mm
		Pakati poyera magetsi zigawo zosiyanasiyana polarities		Pakati pazitsulo zomwe sizimanyamula ndi zida zamoyo		pakati pa zitsulo zochotseka nyumba ndi mbali moyo
		chilolezo chamagetsi	Mtunda wa Creepage	chilolezo chamagetsi	Mtunda wa Creepage	chilolezo chamagetsi	Mtunda wa Creepage
Pokwerera	1000	11	16	11	16	11	16
	1500	13	makumi awiri ndi mphambu zinayi	13	makumi awiri ndi mphambu zinayi	13	makumi awiri ndi mphambu zinayi
	2000	17	30	17	30	17	30
	3000	26	45	26	45	26	45
	6000	50	90	50	90	50	90
	10000	80	160	80	160	80	160
Zindikirani 1: Mota ikapatsidwa mphamvu, chifukwa cha kupsinjika kwamakina kapena magetsi, kuchepetsedwa kwa magawo olimba okhazikika sikuyenera kupitilira 10% ya mtengo wokhazikika.
Zindikirani 2: Mtengo wa chilolezo chamagetsi patebulopo umachokera ku kufunikira kwakuti kutalika kwa malo ogwirira ntchito sikudutsa 1000m. Kutalika kukadutsa 1000m, mtengo wamagetsi patebulo udzakwera ndi 3% pakukwera kulikonse kwa 300m.
Zindikirani 3: Kwa waya wosalowerera basi, voteji yomwe ikubwera patebulo imagawidwa ndi √3
Zindikirani 4: Zilolezo zomwe zili patebulo zitha kuchepetsedwa pogwiritsa ntchito magawo otchingira, ndipo magwiridwe antchito amtunduwu amatha kutsimikiziridwa ndi kuyesa kulimba kwamagetsi.

Nthawi yotumiza: Aug-30-2023

Makhalidwe ochepera a mtunda wa creepage ndi chilolezo cha zida zamagetsi zamtundu wa mota