为安全起见，该元件做了绝缘处理。
In order to make it safe, the element is electrically insulated.
文中还计算出与电器元件连接负载电缆的安全长度。
The safety length to connect apparatus component and load cable was calculated and given.
文中还计算出与电器元件连接负载电缆的安全长度。
The safety length to connect apparatus component and load cable was calculated and given.
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