public function lamPCBwire(PCB $pcb, $piE)
{
$b = 1.7E-5;
$layers = $pcb->getLayers();
$piQ = $pcb->getQuality();
$pAuto = $pcb->getSolderingPointAuto();
$pHand = $pcb->getSolderingPointHand();
$piC = 1;
if ($layers > 2) {
$piC = 0.65 * pow($layers, 0.63);
}
$lambda = $b * ($pAuto * $piC + $pHand * ($piC + 13)) * $piQ * $piE * pow(10, -6);
return $lambda;
}
