GSDW Heavy Loading

SAG AND TENSION TABLE FOR HEAVY ICE LOADING AREAS
TWO PAIR AERIAL SERVICE WIRE - NONMETALLIC (GSDW)
SPAN LENGTH
STRINGING
(Feet)
TENSION (Lbs.)
50
40
75
40
100
40
125
40
150
40
175
50
STRINGING SAG
(Feet) - (Inches)
0
4
0
9
1
5
2
2
3
1
3
4
SAG UNDER
EXPECTED TENSION
HEAVY LOADING UNDER HEAVY LOAD
(Feet) - (Inches)
(Lbs.)
1
11
174
3
4
221
5
0
262
6
11
299
8
11
332
10
10
373
UNLOADED SAG
AFTER STORM
(Feet) - (Inches)
1
1
1
10
2
10
3
11
5
2
6
1
THREE PAIR AERIAL SERVICE WIRE - NONMETALLIC (GSDW)
SPAN LENGTH
STRINGING
(Feet)
TENSION(Lbs.)
50
60
75
60
100
60
125
65
150
80
175
100
SAG UNDER
STRINGING SAG HEAVY LOADING
(Feet) - (Inches) (Feet) - (Inches)
0
3
1
10
0
7
3
3
1
1
4
10
1
6
6
7
1
9
8
4
1
11
10
2
EXPECTED TENSION UNLOADED SAG
UNDER HEAVY LOAD AFTER STORM
(Lbs.)
(Feet) (Inches)
184
1
2
232
1
11
274
2
11
315
3
11
359
4
11
403
6
0
SIX PAIR AERIAL SERVICE WIRE - NONMETALLIC (GSDW)
SPAN LENGTH
STRINGING
(Feet)
TENSION(Lbs.)
50
60
75
60
100
60
125
65
150
75
175
80
200
90
NOTES:
STRINGING SAG
(Feet) - (Inches)
0
5
1
0
1
10
2
7
3
3
4
1
4
9
EXPECTED TENSION UNLOADED SAG
UNDER HEAVY LOAD AFTER STORM
(Lbs.)
(Feet) (Inches)
216
1
3
271
2
2
318
3
3
364
4
6
412
5
9
453
7
1
494
8
5
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.
03/30/04
SAG UNDER
HEAVY LOADING
(Feet) - (Inches)
1
8
3
0
4
7
6
3
8
0
9
11
11
10