Calculate Size of Anchor Fastener for Cable Tray Support.

Calculate Size of Anchor fastener for Cable Tray Support having following Details

• CABLE TRAY DETAIL:
• Size of Cable Tray=600mm Ladder Type Cable Tray
• Weight of Cable Tray=120 kg/meter
• CABLE DETAILS (LAID IN CABLE TRAY)
• Size of Cable =3.5Cx300 Sq.mm, Alu, XLPE, Armored Cable
• No of Cable / Cable tray= 6 No’s
• Weight of Cable = 5.9 Kg/meter
• Size of Cable =3.5Cx150 Sq.mm, Alu, XLPE, Armored Cable
• No of Cable / Cable tray= 2 No’s
• Weight of Cable = 4.5 Kg/meter.
• CABLE TRAY SUPPORT DETAILS
• Cable Tray Support installed at 1 Meter of Cable Tray
• Weight of Cable Tray Support =5.8 Kg/meter
• Safety Factor=5

CALCULATIONS

• Weight of Cable Tray Support = No of Support X Weight of Support
• Weight of Cable Tray Support =1×5.8 Kg/Meter
• Weight of Cable Tray Support =5.8 Kg/Meter———(A)
• Weight of Cable Tray = No of Cable Tray X Weight of Tray
• Weight of Cable Tray =1×120
• Weight of Cable Tray =120 Kg/Meter———(B)
• Weight of 3.5Cx300 Sq.mm Cable = No of Cable X Weight of Cable
• Weight of 3.5Cx300 Sq.mm Cable =6×5.9
• Weight of 3.5Cx300 Sq.mm Cable =35.4 Kg/Meter———(C1)
• Weight of 3.5Cx150 Sq.mm Cable = No of Cable X Weight of Cable
• Weight of 3.5Cx150 Sq.mm Cable =2×4.5
• Weight of 3.5Cx150 Sq.mm Cable =9 Kg/Meter———(C2)
• Total Weight =Safety Factor X (Weight of Cable Tray support + Weight of Cable Tray + Weight of Cables)
• Total Weight =5X (5.8+120+35.4+9) Kg/Meter
• Total Weight=851 Kg/Meter—————–(1)
• Consider 4 No of 10mm size of Anchor Fastener having Basic Tensile Load Capacity of 5KN at each Support.
• Total Tensile Load= No of Anchor Fastener X 101.97XAnchor Tensile Load Capacity (KN)
• Total Tensile Load=4×101.97×5
• Total Tensile Load=1876 Kg/Meter————(2)

Here Total Tensile Load Capacity of Anchor Fastener (1876 Kg/Meter) > Total Weight (851 Kg/Meter) hence Size of Anchor Fastener is OK