Certified static and power grounds are marked with what?

Certified static and power grounds are marked with what?

• A. 1 - inch letters with date tested and test results measured in ohms stenciled on the ground decal / painted ground marking
• B. 2-inch letters with date tested and test results measured in ohms
• C. Engraved metal decal on the equipment case
• D. Color-coded paint on the ground area

Answer: (A)

The marking communicates that the static and power grounding points have been tested and are confirmed to meet the required resistance. The one-inch letters with the date of the test and the measured resistance in ohms are the practical, concise way to record and display this status right at the ground area. Using a ground decal or painted ground marking keeps the information visible on the floor where technicians connect or verify grounds, so a quick glance shows that the path to earth has been checked and is within tolerance. The other choices don’t fit because they either omit the test date and resistance value, place the information somewhere other than the ground marking, or rely on a method (like engraved equipment decals or just color) that doesn’t provide the necessary, easily verifiable test status for the grounding path.

The marking communicates that the static and power grounding points have been tested and are confirmed to meet the required resistance. The one-inch letters with the date of the test and the measured resistance in ohms are the practical, concise way to record and display this status right at the ground area. Using a ground decal or painted ground marking keeps the information visible on the floor where technicians connect or verify grounds, so a quick glance shows that the path to earth has been checked and is within tolerance.

The other choices don’t fit because they either omit the test date and resistance value, place the information somewhere other than the ground marking, or rely on a method (like engraved equipment decals or just color) that doesn’t provide the necessary, easily verifiable test status for the grounding path.