BS
1990 : Part 1 : 1984
Table
1. Preferred sizes of poles
|
Nominal
lenght |
Light
poles |
Medium
poles |
Statut
poles |
| Diameter
at top |
Minium
diameter at 1.5m
from butt end |
Diameter
at top |
Minium
diameter at 1.5m
from butt end |
Diameter
at top |
Minium
diameter at 1.5m
from butt end |
| min.
max. |
min.
max. |
min.
max. |
|
m
6
7
8 |
mm mm
125 - 150
125 - 150
125 - 150 |
mm
150
160
170
|
mm mm
- -
140 - 170
145 - 180 |
mm
-
200
210 |
mm mm
- -
- -
- - |
mm
-
-
- |
8,5
9
9,5 |
125 - 150
125 - 150
125 - 160 |
180
180
185 |
150 - 180
150 - 180
150 - 180 |
215
220
225 |
190 - 240
190 - 240
190 - 245 |
265
275
280 |
10
10,5
11 |
125 - 160
125 - 160
125 - 160 |
185
190
195 |
150 - 185
150 - 190
150 - 190 |
230
235
240 |
190 - 245
190 - 250
190 - 250 |
285
290
295 |
11,5
12
13 |
125 - 165
125 - 165
130 - 170 |
200
200
210 |
150 - 190
150 - 190
160 - 200 |
245
250
260 |
190 - 250
190 - 250
190 - 255 |
300
305
320 |
14
15
16 |
- -
- -
- - |
-
-
- |
160 - 205
165 - 210
170 - 215 |
275
290
305 |
195 - 255
195 - 260
200 - 265 |
335
350
365 |
17
18
20 |
- -
- -
- - |
-
-
- |
180 - 220
180 - 220
180 - 230 |
320
330
360 |
200 - 265
200 - 265
200 - 265 |
375
390
415 |
22
24 |
- -
- - |
-
- |
190 - 240
- - |
380
- |
200 - 265
200 - 265 |
435
470 |
| NOTE: Maxium top diameters are given only
to indicate the range of taper to be expected. |