Answer by lemon for Is it safe to connect AC earth to DC negative?
When using a AC/DC SMPS, the input should and must be grounded, as the unit you are using has a metal case. The earth ground on the input is required to stop you getting shocked if and when you come...
View ArticleAnswer by Spehro Pefhany for Is it safe to connect AC earth to DC negative?
Yes, it's okay to connect it (assuming it's otherwise okay to have your supply output grounded). The manufacturer specifies that 'FG' must be grounded in their installation manual for this model.The...
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Answer by Rohat Kılıç for Is it safe to connect AC earth to DC negative?
The shock you get comes from the leakage from the chassis.An offline system having a PE (protective earth) connection and a grounded chassis has capacitors (physical or parasitic) across both L-PE and...
View ArticleAnswer by Sparky256 for Is it safe to connect AC earth to DC negative?
Yes, it is ok to ground the negative output of a open-chassis or enclosed power supply. Normally this is already done by the mfg to prevent shocks. However there are vintage supplies around were built...
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Is it safe to connect AC earth to DC negative?
I'm going to use a switching mode power supply in a product. When I use no earth connection in the input, the metallic body of the PSU gives a little electric shock. (it has ~70V AC with reference from...
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