Fuses kuj tseem tuaj yeem muab faib ua cov fuses dav dav, cov fuses thaub qab thiab cov fuses tag nrho raws li qhov tam sim no tawg. Kev tawg tam sim no ntau yam ntawm lub hom phiaj dav dav fuses hais txog qhov ntau ntawm cov khoom siv tam sim no ntau dua 1.6 txog 2 npaug ntawm qhov ntsuas tam sim no mus rau qhov siab tshaj plaws tawg tam sim no. Hom fuse no tsuas yog siv los tiv thaiv lub zog transformers thiab cov khoom siv hluav taws xob.
Qhov kev tawg tam sim no ntawm cov fuse thaub qab yog hais txog qhov ntau ntawm cov khoom siv tam sim no ntau dua 4 txog 7 npaug ntawm qhov ntsuas tam sim no mus rau qhov siab tshaj plaws tawg tam sim no. Hom fuse no feem ntau yog siv nyob rau hauv series nrog ib tug contactor, thiab thaum lub overload tam sim no tsawg tshaj li 4 mus rau 7 lub sij hawm lub rated tam sim no, tus contactor yog siv kom paub qhov kev tiv thaiv tawg. Feem ntau tiv thaiv lub cev muaj zog.
