In contrast, the standardization organizations have not developed any test, performance or accuracy specifications for the qualification of cables. The qualifiers have the discretion of the manufacturer to determine which parameters are tested, what accuracy the tester provides and how the results are output.
Another problem is that the results of testers from different manufacturers cannot be compared. In addition, the good / bad limit values are not defined so that the installer does not know why the qualifier has rated a cable as “bad”.
For the reasons mentioned, no manufacturer of cables or connectors will accept test results for certification or any warranty claims that have been determined with a qualifier. It is often not easy for the installer to immediately recognize whether the tester is a qualifier or a certifies. However, since a certifies has to meet defined criteria, identification on closer inspection is relatively easy.
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