Timeline for Voltage Divider or Step-down transformer for voltage sensing 240V AC
Current License: CC BY-SA 4.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| May 16, 2020 at 7:09 | comment | added | Russell McMahon♦ | @DrakeJest Fluke Multimeter safety guidlines see chart of page 2. || MUCH more | |
| May 16, 2020 at 7:08 | comment | added | Russell McMahon♦ | @DrakeJest Multitesters (DMMs etc) use something like circuit one. HOWEVER they meet all the requirements to do it as safely as their certification requires. A DMM has ALL interior components isolated from user contact, with insulation suited to the specified application. They work just as well and just as safely with the leads reversed. They contain a label that advises to ALWAYS unplug the test leads before charging the battery - this is to maintain safety isolation. For mains use meters must have appropriate CAT ratings - AT LEAST CAT2 rated and ideally CAT 3. | |
| May 16, 2020 at 5:23 | vote | accept | DrakeJest | ||
| May 16, 2020 at 5:23 | comment | added | DrakeJest | @SadatRafi great question, how do multi-meters do it? | |
| May 15, 2020 at 21:39 | comment | added | Sadat Rafi | Digital multimeter doesn't have a transformer. How do they measure high voltage or current ? | |
| May 15, 2020 at 20:29 | history | answered | Bimpelrekkie | CC BY-SA 4.0 |