STP & ETP

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  STP     Sewage treatment platn (residential & commercial) ETP     Effluent treatment plant (industry) COD     Chemical oxygen demand (soluble & insoluble organic compound) (2hr to 3hr) (mg/l) BOD     Biochemical oxygen demand (organic compound) (3days to 5days) (mg/l) KEY POINTS: Outlet of STP 50mg/l Biproduct of anaerobic digestion is H2S & NH3 To reduce stink smell use ozone 
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BUS BAR SELECTION

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COPPER BUSBAR


STANDARD SIZE OF BUSBAR AVAILABLE IN MARKET

WIDTH (mm)

20

25

30

35

40

50

75

100

120

150

180

200

THICKNESS (mm)

3

6

10

12

CURRENT CAPACITY OF A BUSBAR

BB = W * T * CCC
where,
CCC = Current carrying capacity
W = Width
T= Thickness

LOCATION

AL

CU

NORMAL (INDIA)

          0.8

1.2

PURE e (GULF)

1

1.6

WEIGHT OF BUSBAR (Kg/m) 

BB = W * T * WD
Where,
W = Width
T = Thickness
WD = Weight density
For,
Aluminium 0.0027
Copper 0.0089

PRIZE ESTIMATION OF BUSBAR

BB = W * T * WD * L * X
where,
W = Width
T = Thickness
WD = Weight density
L = Length in meter
X = rate / Kg
For,
Aluminium 400 may be vary
Copper 1200 may be vary

TYPES OF BUS BUSBAR

Tin plated aluminium
Silver plated copper
Bare copper

JOINTS

CU CU       Silicon bronze or SS
CU AL        Tin plated silicon bronze or SS
AL AL        Aluminium or SS
AL Steel     Tin plated silicon bronze or SS or GS
CU Steel     Silicon bronze or SS or GS

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