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Your test equipment has standards tooWhat does GS 38 ask of your leads?

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Inspection includes inspecting what you are testing with. Guidance Note 3 · Section 4 covers GS38.

On your leads and probes
Exposed tipNo more than 4 mm — and 2 mm is preferred
Finger guardsPresent and intact
Flexible cableUndamaged, adequately insulated
✋Two standards in that section, not one. One applies to the instrument itself, not to the leads. They are separate things and the book shows both — worth reading carefully before buying test gear.
Category ratings. The same part of the book carries a table explaining the CAT marking on your instrument. Most of what you will use is CAT II to CAT III. And the test voltage figure is simply what the instrument will produce in order to carry out the test.

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