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电线对裸露皮肤是否安全?

首先,点亮 LED 所需的最低电流是多少?我认为蓝色 LED 可以在 5 mA 电流下点亮。 10 mA 是电击开始变得痛苦的地方。这大致是正确的。 然而,设计一个可以向 LED 提供 5 mA 电流但无法向人体提供超过几微安电流的电路非常容易,因为人体的电阻要高得多。

电线对裸露皮肤是否安全? 1

在带有电池的电路中,是否有任何情况,如果出现问题,电池的低电压可能会带来痛苦或有害的电击?对于 1.5 V 电池,根据我的经验,很难检测到它们。作为一个孩子,我们曾经通过用舌头接触两个端子来测试 9 V 电池。 它给人一种非常明显的刺痛感。 对于患有心脏病或植入医疗设备的人来说,这可能会很危险。您可以使用接触您皮肤的裸铜线(例如金属丝首饰)来为 LED 供电吗?否则该电路会导致您的皮肤短路或造成触电吗?如果您没有“面临风险”(即心脏病或植入医疗设备),这可能会很好地工作。

您需要将“到”线和“从”线彼此分开,这样它们就不会彼此短路。 我正在尝试弄清楚是否可以在脖子或手腕上佩戴一根裸铜线来为 LED 供电,或者该线是否需要绝缘?FWIW,有多种绝缘材料看起来几乎没有那里。 透明清漆或透明塑料。 这些对于可穿戴应用来说可能更实用。另请记住,在某些情况下,铜可能会弄脏您的皮肤。 如果您在佩戴时出汗,这种情况可能更有可能发生。 当然,这适用于任何铜首饰,并且与您是否在电路中使用铜无关。对于有一点经验的人来说,这可能听起来很荒谬,但我才刚刚开始,所以我们开始吧;) 完整问题分为 3 部分...

首先,点亮 LED 所需的最低电流是多少?我认为蓝色 LED 可以在 5 mA 电流下点亮。 10 mA 是电击开始变得痛苦的地方。第二,在带有电池的电路中,是否有任何情况下,如果出现问题,电池的低电压可能会带来痛苦或有害的电击?第三,你可以用裸露的铜线接触您的皮肤,例如金属丝首饰,或者该铜线是否会使您的皮肤短路或造成电击?

简而言之,我想弄清楚是否可以在脖子或手腕上佩戴一根裸铜线来为 LED 供电,或者该线是否需要绝缘?我的本能是说不,但我也在想也许你的皮肤会提供足够的电阻来防止电击并迫使电流继续流过电线。

电线对裸露皮肤是否安全? 2

·OTHER ANSWER:

对于有一点经验的人来说,这可能听起来很荒谬,但我才刚刚开始,所以我们开始;)完整的问题是 3 个部分......首先,点亮 LED 所需的最低安培数是多少?我认为蓝色 LED 可以在 5 mA 电流下点亮。 10 mA 是电击开始变得痛苦的地方。其次,在带有电池的电路中,是否有任何情况下,如果出现问题,电池的低电压可能会带来痛苦或有害的电击?

第三,您可以使用接触皮肤的裸铜线(例如金属丝首饰)为 LED 供电吗?或者该电路会在您的皮肤上短路或造成电击吗?简单地说,我想弄清楚是否可以佩戴脖子或手腕上的裸铜线为 LED 供电,或者该线是否需要绝缘?我的直觉是不,但我也在想也许你的皮肤会提供足够的电阻来防止电击并强制电流继续沿着电线走下去。

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