Calculate Weight of Electrical Panel

EXAMPLE-1 (Single Compartment Panel):

• Calculate Electrical Panel Weight having height of 800mm, width of 200mm and depth of 500mm.
• The panel material is CRCA steel having 2mm thickness. CRCA Steel density is 7860 kg/m3.
• Panel is Mounted on MS Angle Stand of 25x25x4.5 mm, Height of Stand is 500mm, Weight of MS Angle is 1.6Kg/Meter

Calculation:

• We need to calculate Weight of CRCA Steel Sheet for Front, Top and Side of Panel.

Front Side (Front + Back):

• From Front side We can see either 3 no’s of Plate (Front, Back and Switchgear Mounting Plate) or 2 no’s of Plate (Front and Back) according to Type of Panel.
• Front & Back Side Steel Sheet Weight = Height X Width X Density of Sheet X Thickness of Sheet X No of Sheet
• Front & Back Side Steel Sheet Weight =0.8 x 0.5 x 7860 x 0.002 x 3
• Front & Back Side Steel Sheet Weight =18.86 Kg

Top Side (Top + Bottom):

• Top Side Steel Sheet Weight = Height X Depth X Density of Sheet X Thickness of Sheet X No of Sheet
• Top Side Steel Sheet Weight =0.2 x 0.5 x 7860 x 0.002 x 2
• Top Side Steel Sheet Weight =3.14 Kg

Side (Left + Right):

• Side Steel Sheet Weight = Height X Depth X Density of Sheet X Thickness of Sheet X No of Sheet
• Side Steel Sheet Weight =0.8 x 0.2 x 7860 x 0.002 x 2
• Side Steel Sheet Weight = 5.03 Kg

Panel MS Stand Weight.

• Total Peripheral Length of Panel = 500+500+200+200=1400 =1.4 Meter
• Height of Stand is 500mm, Length of MS Angle =500×4=2000=2 Meter
• Total Length of 25x25x4.5 mm MS Angle =1.4+2=3.4 Meter
• Weight of 25x25x4.5 mm MS Angle is 1.6 Kg/Meter
• Total 75MM MS Base channel Weight =3.4 x 1.6 = 5.44 Kg

Total Panel Weight

• Total Electrical Panel Weight = Front Sheet Weight + Top Sheet Weight + Side Sheet Weight+ MS Stand
• Total Electrical Panel Weight = 18.86 +314 + 5.03 + 5.44 = 32.47 Kg
• Considering extra 20% weight for Hinges, Lock etc.
• Total Electrical Panel Weight =32.47 x 1.2 =38.97 Kg

Total Electrical Panel Weight =38.97 Kg

EXAMPLE-2 (Multi Compartment Panel):

• Calculate Electrical Panel Weight having height of 2300mm, width of 3700mm and depth of 500mm.
• The panel material is CRCA steel having 2mm thickness. CRCA Steel density is 7860 kg/m3.
• The Panel Mounting Base Channel is 75MM.

Calculation:

• We need to calculate Weight of CRCA Steel Sheet for Front, Top and Side of Panel for Each Compartment of Panel.
• Here Main Size of Compartment is 600mm,300mm and 400mm

(1) For 600MM Compartment:

• Front Side (Front + Back):

• From Front side We can see 3 no’s of Plate (Front, Back and Switchgear Mounting Plate).
• Total Height=300+1800+200=2300=2.3meter.
• Front & Back Side Steel Sheet Weight = Height X Width X Density of Sheet X Thickness of Sheet X No of Sheet
• Front & Back Side Steel Sheet Weight =2.3 x 0.6 x 7860 x 0.002 x 3
• Front & Back Side Steel Sheet Weight =65.08 Kg————————–(1)

• Top Side (Top + Bottom):

• Top Side Steel Sheet Weight = Height X Depth X Density of Sheet X Thickness of Sheet X No of Sheet
• Top Side Steel Sheet Weight =0.6 x 0.5 x 7860 x 0.002 x 4
• Top Side Steel Sheet Weight =18.86 Kg——————————–(2)

• Side (Left + Right):

• Side Steel Sheet Weight = Height X Depth X Density of Sheet X Thickness of Sheet X No of Sheet
• Side Steel Sheet Weight =2.3 x 0.5 x 7860 x 0.002 x 2
• Side Steel Sheet Weight = 36.15 Kg————————————–(3)

• Total 600MM Compartment Weight:

• 600MM Compartment Weight= (1) + (2) + (3) =65.08+18.86+36.15=120.1Kg
• No of 600MM Compartment in Panel=1 No
• TOTAL 600MM Compartment Weight =120.1×1=120.1 Kg———(A)

(2) For 300MM Compartment:

• Front Side (Front + Back):

• From Front side We can see 2 no’s of Plate (Front and Back, In Busbar Chamber Base plate is not required).
• Total Height=300+1800+200=2300=2.3meter.
• Front & Back Side Steel Sheet Weight = Height X Width X Density of Sheet X Thickness of Sheet X No of Sheet
• Front & Back Side Steel Sheet Weight =2.3 x 0.3 x 7860 x 0.002 x 2
• Front & Back Side Steel Sheet Weight =21.69 Kg————————–(1)

• Top Side (Top + Bottom):

• Top Side Steel Sheet Weight = Height X Depth X Density of Sheet X Thickness of Sheet X No of Sheet
• Top Side Steel Sheet Weight =0.3 x 0.5 x 7860 x 0.002 x 4
• Top Side Steel Sheet Weight =9.43 Kg——————————–(2)

• Side (Left + Right):

• Side Steel Sheet Weight = Height X Depth X Density of Sheet X Thickness of Sheet X No of Sheet
• Side Steel Sheet Weight =2.3 x 0.5 x 7860 x 0.002 x 1 (We can see 2 No’s of Plate but 1 No of Plate is already considered in adjoin 600MM Compartment)
• Side Steel Sheet Weight = 18.07 Kg————————————–(3)

• Total 300MM Compartment Weight:

• 300MM Compartment Weight= (1) + (2) + (3) =21.69+9.43+18.07=49.20Kg
• No of 300MM Compartment in Panel=5 No
• TOTAL 300MM Compartment Weight =49.20×5=246.01 Kg———(B)

 (4) For 400MM Compartment:

• Front Side (Front + Back):

• From Front side We can see 3 no’s of Plate (Front, Back and Switchgear Mounting Plate).
• Total Height=300+1800+200=2300=2.3meter.
• Front & Back Side Steel Sheet Weight = Height X Width X Density of Sheet X Thickness of Sheet X No of Sheet
• Front & Back Side Steel Sheet Weight =2.3 x 0.4 x 7860 x 0.002 x 3
• Front & Back Side Steel Sheet Weight =43.38 Kg————————–(1)

• Top Side (Top + Bottom):

• Top Side Steel Sheet Weight = Height X Depth X Density of Sheet X Thickness of Sheet X No of Sheet
• Top Side Steel Sheet Weight =0.4 x 0.5 x 7860 x 0.002 x 9
• Top Side Steel Sheet Weight =28.29 Kg——————————–(2)

• Side (Left + Right):

• Side Steel Sheet Weight = Height X Depth X Density of Sheet X Thickness of Sheet X No of Sheet
• Side Steel Sheet Weight =2.3 x 0.5 x 7860 x 0.002 x 1 (We can see 2 No’s of Plate but 1 No of Plate is already considered in adjoin 300MM Compartment)
• Side Steel Sheet Weight = 18.07 Kg————————————–(3)

• Total 400MM Compartment Weight:

• 400MM Compartment Weight= (1) + (2) + (3) =43.38+28.29+18.07=89.76Kg
• No of 400MM Compartment in Panel=4 No
• TOTAL 400MM Compartment Weight =89.76×4=359.04 Kg———(C)

 (5) For 75MM MS Base Channel:

• Total Peripheral Length of Panel = 3700+500+3700+500=8400 =8.4 Meter
• Weight of 75MM MS channel is 7.14 Kg/Meter
• Total 75MM MS Base channel Weight =8.4 x 7.14 = 59.97 Kg—————-(D)

Total Panel Weight

• Total Electrical Panel Weight = 600MM Compartment Weight + 300MM Compartment Weight + 400MM Compartment Weight+ 75MM Panel Base Chanel Weight
• Total Electrical Panel Weight = 120.10 + 246.01 + 359.04 + 59.97
• Total Electrical Panel Weight = 785.13 Kg
• Considering extra 20% weight for Hinges, Lock etc.
• Total Electrical Panel Weight = 785.13 x 1.2 =942.16 Kg

Total Electrical Panel Weight =942.16 Kg