Q: What installation pitfalls cause hidden hot spots for large scale solar farm DC cable loops under high ambient temperature conditions?
A: Many hot spot failures do not root in cable conductor itself but originate from improper installation details. Over tight cable bundling blocks natural heat dissipation under high surrounding temperature; insufficient bending radius builds internal insulation stress over long term thermal cycling. Mixed use of mismatched third party MC4 connectors creates unstable contact resistance. Keep proper spacing between DC cable bundles, respect minimum bending radius, and use matched certified connector sets, and carry out infrared thermal imaging scanning on connection points in routine maintenance.
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