[RE-wrenches] Environmental extremes (high snow, wind or corrosivity)

Greetings wrenches, Anyone have any photos they'd like to share for an interview-based article in SolarPro about designing PV systems for extreme environments? For the purposes of this article, we’re focusing on mechanical loads and stresses. Think high design wind speeds (Florida), high snow l

Re: [RE-wrenches] Meggers for1000 volt arrays

Howie, If meggering an array, first of all, check with your panel oem to see what voltage they recommend to safely IRT. In a series string, you are effectively meggering at the meter voltage plus the cumulative series string voltage. If the meter is set to 500v, and you are measuring a string wh

[RE-wrenches] Meggers for1000 volt arrays

We are starting to work with 1000 volt arrays. What different settings should we be using for testing insulation on these array? Anyone have a favorite megger for testing these arrays. Thanks as always, Howie -- Howie Michaelson NABCEP Certified PV Installation Professional™ Catamount Solar, LL