A fillet weld is used to join 2 steel plates (Tm=1583°C, 5mm thick). The plates are joined at a Tee-joint using an inside fillet corner weld. The velocity of the welding head is 12 mm/sec. Assume the cross section of the weld bead approximates a right isosceles triangle with a leg length of 5.8 mm, the conduction heat loss is 34% and convection heat loss is 47%. Calculate the required power (in Watts) at the source. (Round answer to whole number