I'm quite new to the forums (but a long time reader), and have decided to post a question I had regarding the electronics for Reprap printer I am currently building.
I currently reside in Japan, where line voltage is 100 V (50 Hz; I'm on the east side of the country).
I have sourced an appropriate PSU, but had a question regarding the wiring.
Japanese mains do not come with ground, and only have (non-polarized) live and neutral. Since there is no polarization, I assume it does not matter which wire I put into the L(ive) and N(eutral) terminals on the PSU.
However, most Japanese mains do not come with ground (and my house is no exception). Is it safe to use a PSU with no ground connection? I tried looking for this info on the forums, but came up empty handed.
The back of the PSU has your typical screw down type connections; my first instinct was to use ring or U-shaped crimp terminal connectors, but looking at a few specifications on Japanese sites, I noticed the following:
DC12V480W and under / DC24V960W and under
Obviously, these will be fine for the DC side, but what about the mains line? I was not aware that such limitations actually existed (I always assumed that as long as the crimp terminal/insulation could handle the current, that it would be fine to use).
Any help regarding these issues would be greatly appreciated.
I currently reside in Japan, where line voltage is 100 V (50 Hz; I'm on the east side of the country).
I have sourced an appropriate PSU, but had a question regarding the wiring.
Japanese mains do not come with ground, and only have (non-polarized) live and neutral. Since there is no polarization, I assume it does not matter which wire I put into the L(ive) and N(eutral) terminals on the PSU.
However, most Japanese mains do not come with ground (and my house is no exception). Is it safe to use a PSU with no ground connection? I tried looking for this info on the forums, but came up empty handed.
The back of the PSU has your typical screw down type connections; my first instinct was to use ring or U-shaped crimp terminal connectors, but looking at a few specifications on Japanese sites, I noticed the following:
DC12V480W and under / DC24V960W and under
Obviously, these will be fine for the DC side, but what about the mains line? I was not aware that such limitations actually existed (I always assumed that as long as the crimp terminal/insulation could handle the current, that it would be fine to use).
Any help regarding these issues would be greatly appreciated.