Wrenches, In order to step up our commissioning and testing game and to take proactive steps to spot isolation faults and test insulation resistance prior to our systems getting PTO it is time to invest in a Megger. I am looking for your recommendations for being able to test both AC (single and three phase) and DC (600 to 1000 Vdc) conductors in a wide range of sizes typical to both residential and commercial systems. Ideally the equipment has the option to test to either bare copper or use MC4 leads.
Am I foolish to look for a single unit that tests both AC and DC or should I focus on two pieces of equipment? What is your experience with insulation resistance testing through RSDs, MLPEs, and modules? Are there brands that specifically state this is a no-go? Are there testers that can assist in providing a percentage from + or - to help point out the trouble spot or am I only going to find string-level detail? Any recommendations Sam Haraldson <s...@onsiteenergyinc.com> Installation & Service Manager <http://www.onsiteenergyinc.com/> m. (406) 249-6841 | o. (406) 551-6135 <https://www.facebook.com/onsiteenergysolar/> <https://www.instagram.com/onsiteenergyinc/> <https://twitter.com/onsiteenergyinc> <https://www.linkedin.com/company/onsite-energy-inc/> <https://onsiteenergyinc.com/bcorp>
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