SAG AND TENSION TABLE FOR 12 AWGC RURAL WIRE HEAVY ICE LOADING AREAS SPAN LENGTH (Feet) 50 75 100 125 150 175 200 225 250 275 300 350 400 STRINGING TENSION(Lbs.) 45 45 45 60 80 80 85 90 100 100 110 120 140 STRINGING SAG (Feet) (Inches) 0 5 0 10 1 6 1 9 1 11 2 7 3 2 3 10 4 3 5 1 5 6 6 11 7 9 SAG UNDER HEAVY LOADING (Feet) (Inches) 0 11 1 8 2 7 3 5 4 3 5 4 6 5 7 7 8 8 10 0 11 2 13 9 16 3 EXPECTED TENSION UNDER HEAVY LOAD (Lbs.) 229 277 316 376 437 472 511 548 591 620 661 728 805 NOTE: Heavy ice loading is defined under NESC Rules 250 and 251 as 0.5 inch radius thickness of ice and 4 PSF horizontal wind pressure at 0º F. Stringing tensions are at 60º F. MEDIUM ICE LOADING AREAS SPAN LENGTH (Feet) 50 75 100 125 150 175 200 225 250 275 300 350 400 STRINGING TENSION(Lbs.) 45 45 45 60 80 80 85 90 100 100 110 120 140 STRINGING SAG (Feet) (Inches) 0 5 0 10 1 6 1 9 1 11 2 7 3 2 3 10 4 3 5 1 5 6 6 11 7 9 SAG UNDER HEAVY LOADING (Feet) (Inches) 0 10 1 7 2 6 3 3 4 0 5 1 6 2 7 3 8 3 9 7 10 8 13 2 15 7 EXPECTED TENSION UNDER HEAVY LOAD (Lbs.) 203 246 280 335 391 421 456 490 529 554 591 651 721 NOTE: Medium ice loading is defined under NESC Rules 250 and 251 as 0.25 inch radius thickness of ice and 4 PSF horizontal wind pressure at 15º F. Stringing tensions are at 60º F. LIGHT LOADING AREAS SPAN LENGTH (Feet) 50 75 100 125 150 175 200 225 250 275 300 350 400 STRINGING TENSION(Lbs.) 45 45 45 60 80 80 85 90 100 100 110 120 140 STRINGING SAG (Feet) (Inches) 0 5 0 10 1 6 1 9 1 11 2 7 3 2 3 10 4 3 5 1 5 6 6 11 7 9 SAG UNDER HEAVY LOADING (Feet) (Inches) 0 8 1 4 2 1 2 8 3 3 4 2 5 0 5 11 6 9 7 10 8 9 10 9 12 7 EXPECTED TENSION UNDER HEAVY LOAD (Lbs.) 134 157 175 213 254 270 292 312 339 352 377 415 463 NOTE: Light loading is defined under NESC Rules 250 and 251 as 9 PSF horizontal wind pressure at 30º F. and no ice. Stringing tensions are at 60º F. 04/23-04