問題詳情
42. 建築物屋內外電信設備工程技術規範中,下列敘述何者正確?
(A)一般建築物之接地電阻應為 25Ω 以下
(B)設置電信室建築物之接地電阻應為 10Ω 以下
(C)L1-L2,L1-E,L2-E 之絕緣電阻均應為 3MΩ 以下
(D)屋外線路接地線之接地電阻應為 10Ω 以下,但有特殊困難而不影響人畜安全者,得放寬為 100Ω 以下。
(A)一般建築物之接地電阻應為 25Ω 以下
(B)設置電信室建築物之接地電阻應為 10Ω 以下
(C)L1-L2,L1-E,L2-E 之絕緣電阻均應為 3MΩ 以下
(D)屋外線路接地線之接地電阻應為 10Ω 以下,但有特殊困難而不影響人畜安全者,得放寬為 100Ω 以下。
參考答案
答案:A,B,D
難度:非常簡單1
統計:A(2),B(2),C(0),D(2),E(0)
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