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| Got shocked by 120VAC |
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| PlainName:
--- Quote ---I'm also surprised people take calling "bullshit" "bullshit" so personally --- End quote --- That, there, is the problem. If you'd just pop up and say no, that's not correct because...", then you'd have an audience listening to your argument and being enlightened. By making it personal and derogatory you lost all that before you even said what was wrong. --- Quote --- given that this B word is so prevalent on this forum and on Dave's videos --- End quote --- Just because someone safe behind a screen has no manners, you don't have to emulate them. |
| sandalcandal:
--- Quote from: Siwastaja on June 13, 2021, 03:45:56 pm ---I'm also surprised people take calling "bullshit" "bullshit" so personally given that this B word is so prevalent on this forum and on Dave's videos, but I may have missed some social factor I'm not too good in, maybe it's OK to call bullshit when it's about an outsider's video, or a post by some of the lower-class members, but I'm not aware of Quarlo's social status because I have no idea who he is and what he contributes here, so clearly I hit the wrong button here. This is why I said I don't like these social games. --- End quote --- I think you hit the nail on the head there. I think hostility to "out-groups" and protection of "in-groups" rather than a more intellectual open minded and objective consideration of the information is a bit of a human nature thing but also one of the more negative elements of culture on this forum thanks of the circumstances which attract people to this forum [I should add this a generalisation only applicable to the attitudes of some members of the forum but it does feel like the "prevailing" attitude to me]. Though I guess the same attitudes are also what keep discussions on this forum somewhat higher quality than other places on the internet. In this case however, given the nuances and complexity of the topic which you are well aware of, the response came across a bit unexpectedly blunt (IMO)? Certainly not much wrong with your underlying premise though the point could have been communicated with more tact if you wanted to calmly convince people but then again I don't think it was particularly inflammatory (unlike what I sometimes do...). Certainly it seemed a bit unnecessarily personal from the way you worded it. Edit: Would we be happy to say "energetic flow of electrical charge through certain parts of the the human anatomy kills"? :P |
| bjbb:
--- Quote from: Siwastaja on June 13, 2021, 11:55:41 am --- ... to see why safety limits are primarily given in voltages, not currents. Ohm's law connect the two together so it's makes zero sense to argue "which is dangerous", they are different ways to look at the same thing, namely energy transfer. Current and voltage are just tied together, if there is dangerous voltage applied to a human body, there is dangerous current flowing, and vice versa. So you choose current or voltage viewpoint depending on which is the suitable tool for the task. Voltage limitation (of the voltage source), or current limitation (of the current source) ensures safety the easy way - i.e., use Safety Extra Low Voltage - but isn't always an option. --- End quote --- Not necessarily. Standards based on IEC62368 and IEC60601 establish ground/contact/touch limits in current. Per IEC60601-1, SELV is not always considered safe. And IEC62368-1 (see clause 5) classifies hazard levels per voltage and current and power and energy. But I am being a bit misleading because what is being mitigated are not just shock hazards but also fire hazards. But your phrase 'energy hazard' is dead on (pun not intended), because that is a focus of both the ITE and medical equipment standards. |
| vk6zgo:
--- Quote from: dunkemhigh on June 13, 2021, 04:05:39 pm --- --- Quote ---I'm also surprised people take calling "bullshit" "bullshit" so personally --- End quote --- That, there, is the problem. If you'd just pop up and say no, that's not correct because...", then you'd have an audience listening to your argument and being enlightened. By making it personal and derogatory you lost all that before you even said what was wrong. --- Quote --- given that this B word is so prevalent on this forum and on Dave's videos --- End quote --- Just because someone safe behind a screen has no manners, you don't have to emulate them. --- End quote --- Aarrr! Bullshit! I have said before, & as I am an OF, will repeat interminably------on Internet forums, it is perilously easy to create deadly enemies, even if you don't know why, or never had that intent. |
| bdunham7:
--- Quote from: Siwastaja on June 13, 2021, 03:19:05 pm ---There is a reason why 30mA is a popular choice for RCDs, it gives very good (albeit not perfect, but nothing is) defence against death by electrocution --- End quote --- We must be wimps. American GFCI standards are 5mA with a 6mA test current. 30mA GFI breakers are for equipment and wiring protection and now have arc-fault detection as well. |
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