Sadhana Heavy Duty Ventilated Cable Tray

Schedule of Permissible Loads

All figures given represent the maximum permissible uniformly distributed load in lbs, per foot run.

Unsupported Free Plan

SIZE

2 Ft.

4 Ft.

6 Ft.

8 Ft.

16 Ft.

4" x 16 BG x 2"

960

238

105

58.4

13.3

6" x 16 BG x 2"

979

243

107

59.0

13.0

9" x 16 BG x 2"

1006

249

109

60.0

12.8

12" x 16 BG x 2"

1034

255

111

61.3

12.6

15" x 14 BG x 2"

1312

324

141

77.9

15.8

18" x 14 BG x 2"

1314

324

141

74.3

14.1

24" x 14 BG x 2"

1318

323

140

74.1

13.4

12" x 14 BG x 21/2"

1798

446

195

108.0

23.3

15" x 14 BG x 21/2"

1802

446

195

108.3

22.6

18" x 14 BG x 21/2"

1805

446

194

106.7

21.8

24" x 14 BG x 21/2"

1811

446

194

105.5

20.3

30" x 14 BG x 21/2"

1817

447

193

104.5

18.9

36" x 14 BG x 21/2"

1823

448

193

103.2

17.4

24" x 14 BG x 3"

2343

578

253

138.6

28.3

30" x 14 BG x 3"

2358

583

253

137.6

26.5

36" x 14 BG x 3"

2373

587

254

137.6

25.8

FORMULA

(A) The maximum permissible point laod at-mid-span may be obtained from the formula

P = 1/2 x U x S

where ;

P = Maximum permissible point load in lbs, at mid-span

U = Maximum permissible uniformly distributed load in lbs, per foot run

S = the particular free span in feet

 

(B) In case of a span not listed above, the corresponding maximum permissible uniformly distributed load may be found from the formula :

U = 4 x (U at 2 ft. span) / S2

 

(C) Free span exceeding 16 ft. are not recommended

TO CONVERT LBS / FOOT RUN LOAD INTO KGS / MTR MULTIPLY BY 138

Heavy Duty Extra Ventilated Cable Tray Type S.E.C.2

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