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the HF unit says 1KV/750AC on the front, I would not trust those test leads past 300V AC( rms), I use the thing for working on 48V and lower ( think keep in Vehicle )...mine were all free way back when...not too accurate either although good enough for some applications.
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in fact having been inside a couple I think 300VAC would be more realistic it would most likely survive 600VDC but not in my hands. ...but then I am used to working well above 20KV AC/DC with tools designed for such. I've seen what HV can do... good quality test probes/leads are generally good for 750VAC (dependent on condition) anything over that I switch to a HV probe. as a reminder- If building a probe be sure it is measuring across a shunt ( keep R calculated so metered V is safe for meter ie- on the low side) and *do not ever forget the ground first! *all Resistors need proper design /stand off V and beware of auto ranging meters....especially when above 500KV...do not ask how I know...oops...btw -the resistors were not cheap? and never touch them.....finger oil/dirt will arc. Fluke makes a pretty good hand held 40KV probe for the ( my ) low V stuff , has some long term temp drift but not bad at 20KV for a non cooled probe and it is good to 40KV. Even the old Heathkit HV probe w/ meter is not bad. most importantly safety is cheaper than a trip to the morgue or ER. Be safe. ¸é±ð²Ô¨¦±ð On 2/8/24 10:58 PM, Jim Strohm wrote:
The Fluke 7 series handheld DMMs are safe to 1 kVDC, but I recommend that |
