The Day I Blown-Up a $500 Smart Dimmer with 500 Volts DC: Mastering AS/NZS 3017 Testing Down Under
Have you ever hooked up your expensive Megger insulation resistance tester to a brand-new switchboard, flipped the test switch to 500V DC with a grin, heard a soft POP, and then watched a faint wisp of blue smoke slowly drift out of an expensive smart dimmer module? If you’ve been in the trade long enough,…
