王永平（新疆市政建筑设计研究院有限公司，乌鲁木齐市 830017）

Discussion on the Electrical Design of Zero‑magnetic Laboratory

WANG Yongping(Xinjiang Municipal Architectural Design Institute Co.,Ltd.,Urumqi 830017，China)

Abstract：The non‑magnetic electrical design of the zero‑magnet laboratory is introduced:DC 220 V power supply is selected as the lighting power;AC power supply is used for experimental equipment;in order to improve the shielding effectiveness,the number of holes on the screen shall be minimized,the long side of holes shall be parallel to the magnetic flux direction,and circular holes shall be arranged symmetrically;shielded cables shall be used as distribution cables for experimental equipment;the distribution boxes shall be subject to shielding treatment.

Key words：zero‑magnetic laboratory;non‑magnetic electrical;effective area of zero‑magnetic space;DC lighting system;shielded cable;shielded sheath;shielded sleeve;grounding

摘　要：介绍“零磁”实验室的“无磁”电气设计：照明电源选择DC 220 V；实验设备电源采用交流配电；为提高屏蔽效能，屏蔽体开孔应尽量减少孔洞数量、孔洞长边平行于磁通方向、圆形孔洞对称排布；实验设备的配电线缆采用屏蔽线缆；配电箱做屏蔽处理。

关键词：“零磁”实验室；“无磁”电气；“零磁”空间有效面积；直流照明系统；屏蔽线缆；屏蔽护套；屏蔽套管；接地

中图分类号：TU244.5             　  文献标识码：A

doi：10.3969 / j. issn.1003 － 8493.2024.07.005