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Is it a good or bad idea to insulate solder joints on a PCB using insulating tape, or Kapton tape. And should each joint be taped individually or to tape on across a whole area?

For example, when a power supply has some live wires soldered on and are normally exposed on the other side. And there is another device in proximity that can "push" on the PSU, potentially shortening the leads.

To clarify, I mean leaving the tape when a device is operating, not just during rework.

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closed as unclear what you're asking by uint128_t, Autistic, Dmitry Grigoryev, Daniel Grillo, stanri Jul 5 '16 at 10:31

Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

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    \$\begingroup\$ What's the purpose, to keep someone from getting shocked? If so there are lots of regulations on how that should be done. It's way better to do it with some type of enclosure than with tape. \$\endgroup\$ – John D Jul 1 '16 at 18:42
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    \$\begingroup\$ What problem do you think you need to solve? We can't tell you whether a proposed solution is good or bad without knowing what the problem is. \$\endgroup\$ – Neil_UK Jul 1 '16 at 18:42
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    \$\begingroup\$ Isolate the wires then! \$\endgroup\$ – Jakey Jul 1 '16 at 18:57
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    \$\begingroup\$ It would be better to make it so that the device cannot be pushed onto the other circuitry. If you cannot make enough space around the power supply, can you interpose a securely-mounted insulator, strong and thick enough that it cannot be pierced, such as blank PCB material? \$\endgroup\$ – Andrew Morton Jul 1 '16 at 19:27
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    \$\begingroup\$ sometimes fireproof card or plastic shield is used in circumstances like this \$\endgroup\$ – Jasen Jul 2 '16 at 11:45
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In production, this kind of insulation is often achieved with a plastic sheet between the parts (for example, between the solder side of the PCB and the enclosure). The sheet is held (or loosely captured) by the mounting hardware (screws, standoffs, and such). Usually, the sheet doesn't have adhesive (or doesn't rely solely on adhesive).

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