Securing a PV installation: what to protect and how

Securing a PV installation means protecting it physically: a security fence around the perimeter, anti-theft clamps and security bolts on the modules, a corrosion-proof structure that survives the weather, and managed clearance around the array. A solar installation is a valuable, unattended asset standing in the open for decades, so the threats it faces are…

TIG welding explained

TIG welding, formally gas tungsten arc welding or GTAW, strikes an arc from a non-consumable tungsten electrode under an argon shield and adds filler by hand, giving the cleanest and most precise weld of the common processes, on aluminium with AC and on steel and stainless with DC. Because the heat and the filler are…

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