A.遠方有接地 B.附近線路有間歇性接地 C.系統(tǒng)無接地故障
A.35KV/10A負荷 B.110KV/10KM空載 C.10KV/25A負荷 D.10KV/10KM空載
A.80 B.85 C.90 D.95