After 3 years in automated testing, I’ve burned out 2 oscilloscopes and 1 PLC module—all because of shoddy power strips causing poor contact sparks and excessive voltage drop. Learn from my costly mistakes: never use civilian-grade power strips for industrial testing!
Focus on these 3 key factors:
1. Contact & Durability: Opt for one-piece copper bars + phosphor bronze sockets. The contact resistance change should be < 0.05Ω after 1000 insertions/extractions, and the temperature rise should be < 30K after 4H of continuous full load. No glitches should appear in the oscilloscope waveform.
2. Safety Redundancy: It must feature UL94 V-0 flame retardancy, IP44 dust and water resistance, and mechanical interlocking (power-off unlocking to prevent arcing). Hot-swap maintenance support is a plus.
3. Testing-Friendliness: Choose a strip with 45mm+ large hole spacing to avoid plug conflicts. It should come with industrial interfaces like NEMA/L6-30P, be compatible with power analyzers and programmable power supplies, and support 10A/16A/32A currents.
Don’t skimp on costs! Last week, I used an WONPRO brand industrial test power strip for inverter testing—it ran continuously for 72 hours without power cuts or interference, and the data passed inspection in one go. This is the peace-of-mind tool every tester needs.
Image Suggestions: Actual testing scenarios with the power strip connected to an oscilloscope/PLC, close-up of internal copper bars, and screenshots of temperature rise test data.
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