| Electronics > Beginners |
| New 2017 Macbook Pro 15 Inch giving me static electric shock. Is it normal? |
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| wraper:
--- Quote from: electrolust on August 31, 2017, 05:00:34 pm ---I didn't say it wasn't a typo. I said it wasn't obviously a typo. I don't know what the palm is about buddy, get over yourself. --- End quote --- Then it was a language barrier. And you wrote it in confusing way, and I'm not sure if grammatically correct, English is not my first and even not a second language. Now tried google translate, and it agrees with how I understood it (obviously, it was not a typo). If you wrote "it was not obvious typo" then I would understood you properly. |
| electrolust:
--- Quote from: bd139 on August 31, 2017, 09:52:49 am ---Just measured current between my ThinkPad T440 and ground: 82uA. And the MacBook again: 103uA --- End quote --- I thought T-series were all plastic bodied? Mind saying where exactly you measured on the case? Can you feel the 103uA 0.103mA? You inspired me. I have a new USB-C MB from work, charging with Apple 2 prong adapter, and the current between case and ground is ... unmeasurable. Am I doing it right? I'm using the uA DC range, hot lead touching the MB case and ground lead touching the metal of a wrist static band that plugs into a wall outlet ground plug. On the ACV setting I do measure 110V between hot and the the wrist band (ground plug), so for sure the ground wire is connected in the outlet. From what I can gather, there should definitely be SOME leakage current, so I must be measuring it incorrectly? Or is it possible that my charger doesn't in fact leak. |
| RGB255_0_0:
Well there isn't going to be DC through the cap :) |
| electrolust:
:palm: Still no current using ACI measurement. The laptop is fully charged though, so perhaps it's turned off the charging function. I'll let the battery drain a bit. |
| electrolust:
0.200uA (200nA) measured with just the probes touching. If I press the positive probe to the case with my finger, it goes to 15ua. 25nA if I put myself in the loop -- hot lead to case, gnd lead in hand, wrist strap to ground. I'm using a miniature charger though, 29W or something like that. Not the bigger 61W or 87W chargers. |
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