6. Calculate Weight of Electrical Panel

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: