File:Surge APC Pro7 7Z1714L0535 testing polaritygroundingtest 01.jpg
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APC SurgeArrest Professional PRO7 undergoing electrical testing with a receptacle tester. The tester indicates correct outlet wiring and grounding while the green Protection Working indicator is illuminated.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:44, 19 September 2026 | | 1,600 × 913 (257 KB) | PowerPig (talk | contribs) |
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