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在中学的物理实验室或物理教室中,为了满足学生实验和课堂演示的需要,设置一实验室用小型配电盤,是十分必要的。从这个配电盤中,可以得到适合我们需要的各种量值的交流电压,以及充电和电解时所需要的直流电压。这个配电盤的设计和制作,并不很困难,在任何一个中学里,都可以试制。现在把我们制作小型配电盤的一些有关资料,介绍在下面,供同志们参考,并希望提出改进意见。
In the physics lab or physics classroom in middle school, in order to meet the needs of students’ experiment and classroom demonstration, it is necessary to set up a small power distribution panel for lab. From this switchboard, we get the AC voltages of various magnitudes suitable for our needs, as well as the DC voltage required for charging and electrolysis. The design and production of the distribution panel, not very difficult, in any secondary school, can try. Let us now introduce some of the relevant information on the production of mini-distribution panels for our reference, and hope to put forward suggestions for improvement.