Weak structural anchorage

Weak structural anchorage means the mounting structure is not fixed firmly enough to the ground or roof. A common reason is that ground conditions were not properly considered when the structure was chosen. It is one of the typical origins of a defective mounting structure. Others are structures not designed for local wind or snow loads, unsuitable materials and installation errors. A poorly anchored or damaged structure compromises the integrity of the modules it carries and sometimes the roof beneath. In the worst case, single modules or the whole structure come loose from the roof or ground, which is a serious hazard to people and nearby property. After storms, structure foundations have been found uprooted, even where the modules stayed intact. How much output is lost depends on the module damage, such as glass breakage, cell cracks, backsheet damage, detached junction boxes or disconnected strings, and on how long repairs take. Mounting structure defects are detected by visual inspection. Look for bending, cracking or corrosion on the structure. To reduce exposure, use mounting structures that suit the ground and the modules, follow the manufacturer's mounting instructions, check local wind and snow loads, and inspect the system regularly. Replace or repair any structure that is a direct safety risk. For anchored equipment such as battery enclosures, the structural engineer of record selects the anchors to meet site and foundation requirements.

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• sentence 3: support check: partial - Passages say inappropriate or damaged structure compromises modules and sometimes substructure, with detachment as the worst case, but do not specifically attribute this to poor anchorage; the statement's framing is slightly narrower and 'nearby property' is covered.
• sentence 4: support check: partial - The figure caption shows foundations uprooted with modules intact at a plant, but does not say it happened after storms or that this was found generally. -->