Table of Contents
How do you calculate the weight of a GI strip?
WEIGHT (KGS ) = WIDTH X WIDTH X 0.00000785 X LENGTH. Example : A Square of size 25mm and length 1 metre then the weight shall be. WEIGHT (KGS ) = 3.14 X 0.00000785 X ((diameter / 2)X( diameter / 2)) X LENGTH.
How do you calculate the weight of copper strips?
Weight per Meter = (A x A x 0.007361) Kg.
How do you measure earthing strips?
Required Earthing Conductor size = Cross sectional area x Total allowance x Safety factor. Required Earthing Conductor size = 1125 Sq.mm say 1200 Sq.mm. Hence, Considered 1Nox12x100 mm GI Strip or 2Nox6 x 100 mm GI Strips.
What is GI strip?
GI Earthing Strip are widely used in industry for earthing of various machineries and equipments. We are offering wide variety of GI Earthing Strip in varied sizes as per requirement of the customer.
How do I calculate earth wire size?
Let we calculate the required GI earth conductor size for 20kA Fault Current at 0.5 sec. Approximately 185Sqmm. Generally, GI is availed in the busbar structure hence Or You can take any combination of conductor size such as 50×3.5 Sqmm or 25x8Sqmm etc….Earthing conductor size calculation Formula:
| Material | Material Constant (k) |
|---|---|
| GI | 80 |
| Copper | 205 |
| Aluminium | 126 |
How do you measure the earth strip for a transformer?
Thumb Rule for Calculate Number of Earthing Rod
- ρ = Resistivity of earth in Ohm-Meter.
- L = Length of the electrode in Meter.
- d = Diameter of the electrode in Meter.
- K = 0.75 if 25< L/d < 100.
- K = 1 if 100 < L/d < 600.
- K = 1.2 o/L if 600 < L/d < 300.
How do I choose a busbar size?
Bus bar Cross Section Area as per Short Circuit= 50000X√ ((1.166/( 100×100)x(1+ 0.00403×85) x1. Bus bar Cross Section Area as per Short Circuit=626 Sq.mm. Select Higher Size for Bus bar Cross section area between 436 Sq.mm and 626 Sq.mm. Final Calculated Bus Bar Cross Section Area =626 Sq.mm.
What is difference between grounding and earthing?
Earthing means connecting to the dead component (to the part that does not carry current) under normal conditions to the earth. Grounding means connecting the live part, it means the constituent that carries current under normal condition to the earth.
What is the minimum length of earth electrode?
First, the NEC code (1987, 250-83-3) requires a minimum ground electrode length of 2.5 meters (8.0 feet) to be in contact with soil. But, there are four variables that affect the ground resistance of a ground system: Length/depth of the ground electrode. Diameter of the ground electrode.
Why is GI strip used for earthing?
Earthing Pipes – These are commonly known as pipe electrodes that are generally used for applications of power transmission. The best pies that are available in the market and should be used should be made from GI and copper. Earthing Strips – These are required for balancing electrical and thermal conductivity.
Why is GI pipe used for earthing?
For Pipe type earthing normal practice is to use GI pipe [C-class] of 75 mm diameter, 10 feet long welded with 75 mm diameter GI flange having 6 numbers of holes for the connection of earth wires and inserted in ground by auger method.
What are the dimensions of GI steel flats?
Useful Information of GI Steel Flats Size (mm) Weight (kg/ft) Weight (Kg/mtr) 12 x 3 0.086 0.282 12 x 5 0.143 0.47 18 x 4 0.18 0.585 20 x 3 0.143 0.47
What are the dimensions of a GI pipe?
GI PIPE FOR ORDINARY USES IN WATER, GAS, STEAM & AIR LINES CONFIRMING TO IS:1239 (Part-1) 2004 Unless otherwise specified 4 to 7 Mtrs. Further, our range finds application in different industries across the globe, some of the industries are as follows:
Are there any manufacturers of hot dip galvanised earth strip?
We are manufacturer of hot dip galvanised earth strip. We have stock avaiblity 24 hrs to meet the bulk demand of customer Make aeron industries. Yes!
How to calculate the weight of a strip of steel?
STRIP WEIGHT AND LENGTH CALCULATIONS Pounds to Feet Calculations Feet = M/[D x G x W x 12] Feet to Pounds Calculations Pounds = L x D x G x W x 12 Square Inches to Pounds Calculations Pounds = [G x W] x L x D D = Density (pounds / in ³) M = Mass (pounds) G = Gauge (inches) W = Width (inches) R = Radius (inches) L = Length (feet)