General > General Technical Chat

Fused on the 'neutral' side?

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bjbb:
"A soldering station is regulated by UL"

No. UL does not regulate anything. They are just another NRTL. In the U.S., OSHA regulates stuff for the workplace and other public venues.


" Fixed equipment is subject to the NEC"

No. It is subject to the local or regional regulations per the AHJ; which may or may not be based on the NEC.

And there are other problems, but, nevermind...

Siwastaja:
The key is that devices must be always unplugged before opening the case and touching the wiring; always, even and especially if they seem "dead" (which could be caused by a blown internal fuse, or by some other fault). This is obvious to most people.

If you assume that the cause of silence is due to blown fuse, and further assume said blown fuse "cuts the live", go on and open the device case while still plugged in, and touch the live wires, you are at fault.

There is a reason why a normal consumer isn't supposed to open the devices.

As a reminder about confusing names, live and line are two different words; both line and neutral count as "live". The reason is obvious in countries with unpolarized plugs. But even if polarized plug is used, the risk of miswiring exists, especially if extension cords are used.

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