Jerol Composite Utility Poles
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Timber Vs Jerol Composite - Comparison of loads

Comparison of loads for timber and Jerol composite poles

Light poles

Nominal length pole

Assumed depth of planting *

Diameter

Ultimate load, unstayed

Crippling load

Torsion

allowed

Minimum at 1,5 m fr. butt end

From butt end and 2 meter up

At 0,6 m from top of pole

At 0,2 m from top of pole

Stayed

Unstayed

m

Redwood

m

Jerol

m

Redwood

mm

Jerol

mm

Redwood

kN

Jerol

kN

Redwood

kN

Jerol

kN

Jerol

kN

Jerol

MPa

7,0

8,0

1,2

1,5

2,0

2,0

160

170

216

216

4,31

4,40

7,36

6,09

45,9

39,7

160,8

110,4

40,2

27,6

110

110

9,0

10,0

1,5

1,5

2,0

2,0

180

185

216

218

4,46

4,23

5,20

5,02

32,8

26,6

80,4

62,6

20,1

15,7

110

110

11,0

12,0

1,8

1,8

2,0

2,0

195

200

221

224

4,40

4,26

5,01

5,01

24,5

20,8

48,3

43,4

12,1

10,9

110

110

13,0

1,8

2,0

210

268

4,46

5,16

20,5

61,8

15,5

80

 

Medium poles

Nominal length pole

Assumed depth of planting *

Diameter

Ultimate load, unstayed

Crippling load

Torsion

allowed

Minimum at 1,5 m fr. butt end

From butt end and 2 meter up

At 0,6 m from top of pole

At 0,2 m from top of pole

Stayed

Unstayed

m

Redwood m

Jerol m

Redwood

mm

Jerol

mm

Redwood

kN

Jerol

kN

Redwood kN

Jerol

kN

Jerol

kN

Jerol

MPa

7,0

8,0

1,2

1,5

200

210

8,53

8,29

89,2

80,7

80

80

9,0

10,0

1,5

1,5

2,0 2,0

220

230

269

272

8,15

8,13

8,61

8,61

70,4

59,1

152,6 119,0

38,2

29,8

80

80

11,0

12,0

1,8

1,8

2,0 2,0

240

250

275

278

8,18

8,23

8,61

8,61

53,2

46,6

103,2 89,8

25,8

22,4

80

80

13,0

14,0

1,8

1,8

2,0 2,0

260

275

280

283

8,46

8,98

8,61

8,61

47,5

44,4

80,1 72,2

20,0

18,1

80

80

15,0

16,0

2,1

2,1

2,0 2,0

290

305

286

289

9,60

10,23

8,58

8,61

45,9

46,3

65,5 60,4

16,4

15,1

80

80

 

Stout poles

Nominal length pole

Assumed depth of planting *

Diameter

Ultimate load, unstayed

Crippling load

Torsion

allowed

Minimum at 1,5 m fr. butt end

From butt end and 2 meter up

At 0,6 m from top of pole

At 0,2 m from top of pole

Stayed

Unstayed

m

Redwood

m

Jerol

m

Redwood

mm

Jerol

mm

Redwood

kN

Jerol

kN

Redwood

kN

Jerol

kN

Jerol

kN

Jerol

MPa

9,0

10,0

1,5

1,5

2,0

2,0

275

285

289

15,91

15,47

15,57

176,8

146,1

193,7

48,4

80

80

11,0

12,0

1,8

1,8

2,0

2,0

295

305

294

299

15.24

15.08

15,58

15,56

129.5

111.7

170,2

139,3

42,6

34,8

80

80

13,0

14,0

1,8

1,8

2,0

2,0

320

335

303

308

15.73

16.24

15,58

15,57

106.7

97.8

116,1

98,3

29,0

24,6

80

80

15,0

16,0

2,1

2,1

2,0

2,0

350

385

312

316

16.68

17.35

15,59

15,57

93.2

91.6

84,2

73,0

21,1

18,3

80

80

 

* The assumed depth of planting is not based on the necessary foundation design requirements. Values for poles of redwood taken from BS 1990-1:1984

Jerol's Composite Distribution Poles are now officially approved for use in the Swedish utility network owned by Vattenfall

After an extremely thorough review of the Jerol Composite Distribution Pole's strength calculations and supervised validating tests, according to the European standard, the internal product council at Vattenfall now has officially approved the Jerol poles in their networks. (December 2014)
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