Cov txheej txheem xeem

Hom

Xeem tam sim no

Thawj Xeev

Tripping lossis Tsis-tripping Lub Sijhawm Txwv

Xav Tau

Lus ceeb toom

A

B,C,D

1.13 Ib

txias

t≤1h

tsis muaj tripping

B

B,C,D

1.45 Ib

Tom qab xeem A

t＜1h

tripping

Qhov tam sim no tsis tu ncua nce mus rau tus nqi teev hauv 5s

C

B,C,D

2.55 Ib

txias

1s＜t＜60s (ib≤32A)

1s＜t＜120s (Ib＞32A)

tripping

D

B

3 Hauv

txias

t≤0.1s ib

Tsis muaj tripping

Tig rau qhov hloov pauv kom kaw qhov tam sim no

C

5 Hauv

D

10 Ib

E

B

5 Hauv

txias

t＜0.1s ib

tripping

Tig rau qhov hloov pauv kom kaw qhov tam sim no

C

10 Ib

D

20 Ib