Numerical Algorithms for Calculating Temperature, Layered Stress, and Critical Current of Overhead Conductors

Table 2

The values of the fitting coefficient .

Coefficients	Value	Confidence bounds
a1	203.4001	−671.671	1078.472
a2	0.300959	−0.38589	0.98781
a3	7833.395	−86675.7	102342.5
a4	0.091287	−0.50256	0.685134
a5	0.998746	−2.53519	4.532683
a6	−39.569	−110.065	30.92676
a7	2386.236	−44062.9	48835.41
a8	−0.00761	−0.09472	0.079501
a9	1.132626	−2.66625	4.931498
a10	−0.10697	−0.14894	–0.065
a11	−8308.29	−107465	90848.25