RCBO: Chitetezo cha kutayikira ndi chitetezo chochulukira

KumvetsetsaRCBOZinthu Zofunika Kwambiri Pachitetezo Chamagetsi

Mu dziko la kukhazikitsa magetsi, chitetezo ndi chofunikira kwambiri. Chimodzi mwa zinthu zofunika kwambiri kuti zitsimikizire chitetezo ndi chotsukira magetsi chomwe chili ndi chitetezo cha overcurrent, chomwe chimadziwika kuti RCBO. Chipangizochi chimagwira ntchito yofunika kwambiri poteteza anthu ndi katundu ku zolakwika zamagetsi, zomwe zimapangitsa kuti chikhale chofunikira kwambiri pamakina amagetsi amakono.

Kodi RCBO ndi chiyani?

RCBO ndi kuphatikiza kwa zida ziwiri zotetezera: chipangizo chotsalira chamagetsi (RCD) ndi chotsegula madera chaching'ono (MCB). Zigawo za RCD zimapangidwa kuti zizindikire zolakwika zapadziko lapansi, zomwe zimachitika pamene magetsi akuyenda kupita padziko lapansi m'njira yosayembekezereka. Zolakwika zapadziko lapansi zitha kuchitika chifukwa cha kulephera kwa insulation, chinyezi kapena kukhudzana mwangozi ndi zinthu zamoyo. Vuto lapadziko lapansi likapezeka, RCD imatsegula dera kuti ipewe chiopsezo cha kugwedezeka kwamagetsi kapena moto.

Kumbali inayi, zigawo za MCB zimateteza ku zinthu zomwe zimachitika chifukwa cha kuchuluka kwa mphamvu zamagetsi, zomwe zingayambitsidwe ndi kuchuluka kwa mphamvu zamagetsi kapena ma circuit afupi. Kuchuluka kwa mphamvu zamagetsi kumachitika pamene zipangizo zambiri zalumikizidwa ku circuit imodzi, zomwe zimapangitsa kuti magetsi azikhala ambiri kuposa momwe angagwirire bwino. Ma circuit afupi amapezeka pamene pali kulumikizana mwachindunji pakati pa mawaya otentha ndi osalowerera, zomwe zimapangitsa kuti magetsi aziwonjezeka mwadzidzidzi. Muzochitika izi, MCB imagunda ndikutsegula circuit, kuteteza mawaya ndi zipangizo zamagetsi kuwonongeka.

N’chifukwa chiyani mugwiritse ntchito RCBO?

Kuphatikiza ntchito za RCD ndi MCB mu chipangizo chimodzi kumapereka zabwino zingapo. Choyamba, kumachepetsa njira yokhazikitsira magetsi. M'malo moyika zida zosiyana kuti ziteteze vuto la nthaka ndi overcurrent, RCBO imapereka ntchito zonse ziwiri mu chipangizo chimodzi chocheperako. Izi sizimangopulumutsa malo mu chipangizo cha ogula, komanso zimachepetsa nthawi ndi ndalama zoyikira.

Kachiwiri, ma RCBO amawonjezera chitetezo. Ngati magetsi alephera, ma RCBO amachotsa mwachangu magetsi, zomwe zimachepetsa chiopsezo cha magetsi ndi moto. Izi ndizofunikira kwambiri m'nyumba, komwe chitetezo cha anthu okhalamo chili patsogolo. Kuphatikiza apo, ma RCBO angagwiritsidwe ntchito m'njira zosiyanasiyana, kuyambira pa waya wapakhomo mpaka kumafakitale ndi mafakitale, zomwe zimapangitsa kuti azisinthasintha komanso kusinthasintha.

Kusankha RCBO yoyenera

Posankha RCBO, zinthu zingapo ziyenera kuganiziridwa. Choyamba ndi mlingo wamakono, womwe uyenera kufanana ndi zofunikira pa katundu wa dera. Mlingo wamakono wamba ndi 6A, 10A, 16A, 20A ndi 32A. Ndikofunikira kusankha RCBO yomwe imatha kuthana ndi katundu woyembekezeredwa popanda kupunthwa mosafunikira.

Chinthu china chofunikira ndi residual current rating, yomwe nthawi zambiri imafotokozedwa mu milliamperes (mA). Standard ratings ikuphatikizapo 30mA yodzitetezera ndi 100mA kapena 300mA yodzitetezera ku zida. Pa ntchito zapakhomo, 30mA rating nthawi zambiri imalimbikitsidwa kuti isagwedezeke ndi magetsi.

Ndikofunikanso kuganizira mtundu wa RCBO. Pali mitundu ingapo yoti musankhe, monga AC, A, ndi B, iliyonse yopangidwira ntchito inayake. Mtundu wa AC ndi woyenera ma circuits osinthasintha, pomwe mtundu wa A ukhoza kuzindikira DC yothamanga, zomwe zimapangitsa kuti ikhale yoyenera ma circuits okhala ndi zida zamagetsi. Mtundu wa B umagwiritsidwa ntchito ma circuits omwe angakhale ndi DC yosalala, monga omwe amayikidwa ndi solar.

Powombetsa mkota

Pomaliza, ma RCBO ndi chipangizo chofunikira kwambiri m'makina amagetsi amakono, chomwe chimateteza zinthu ziwiri ku vuto la nthaka ndi kutentha kwambiri. Kapangidwe kake kakang'ono, kuyika kosavuta, komanso chitetezo chowonjezereka chimawapangitsa kukhala chisankho chabwino kwambiri kwa akatswiri amagetsi ndi eni nyumba. Pamene miyezo yachitetezo chamagetsi ikupitirirabe kusintha, kufunika koyika ma RCBO mu zida zamagetsi sikunganyalanyazidwe. Mwa kumvetsetsa ndi kugwiritsa ntchito gawo lofunikirali, titha kuwonetsetsa kuti malo otetezeka kwa aliyense.