A Hierarchical Fuzzy Comprehensive Evaluation Algorithm for Running State of a 6 kV (10 kV) Power Switch Cabinet

<table class="fixed-width table-group" id="tab8"><tr><td><table class="table"><colgroup><col style="width:11.23em"/><col style="width:9.94em"/><col style="width:15.76em"/><col style="width:16.10em"/></colgroup><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">Ambient air temperature</td><td class="align_center">−10°C~+40°C</td><td class="align_center">Indoor humidity (relative humidity)</td><td class="align_center">Daily average is not greater than 95%</td></tr><tr><td class="align_left">Altitude</td><td class="align_center">No more than 1000 m</td><td class="align_center">Earthquake intensity</td><td class="align_center">8</td></tr><tr><td class="align_left">Maximum wind speed</td><td class="align_center">35 m/s</td><td class="align_center">Environmental pollution grade</td><td class="align_center">II</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Environmental conditions of switch cabinet.</div>

Mathematical Problems in Engineering

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Table 8

Table 8: A Hierarchical Fuzzy Comprehensive Evaluation Algorithm for Running State of a 6 kV (10 kV) Power Switch Cabinet 