How do I choose earthing strip size?
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.
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.
Is standard for GI strip?
Specifications: Size: 25×6 mm 1 kg 200 gm per meter. Thickness: 0.2 mm-3.5 mm.
What is GI earthing strip?
GI Earthing Strips are a conventional method for providing earthing to the various area like industrial, residential, commercial, etc. Our stripes are usually used for providing a stable platform for operation of sensitive equipment. Our professionals use galvanized iron for manufacturing these strips.
How do you calculate earthing needed?
Number of earthing pipe required = Fault Current / Max. current dissipated by one earthing pipe. Number of earthing pipe required = 50000/838 = 59.66 Say 60 No’s. Total number of earthing pipe required = 60 No’s.
How do you calculate earth’s main size?
Here our earthing size calculator is used to calculate the exact required earthing conductor size in sqmm.
- Enter the fault current in kilo Amps and fault clearing time in Sec.
- Earth Conductor size = √ (200002 x 0.5) / 80.
- However, the size of the conductor is above the resultant size.
What is GI earthing?
In areas with high soil resistivity, GI (Galvanized Iron) Earthing Electrodes give a low-impedance ground. …
How is earthing size calculated?
Allowable Current Density = 7.57×1000/(√100X1)=757 A/m2. Surface area of both side of single 600×600 mm Plate= 2 x lxw=2 x 0.06×0.06 = 0.72 m2. Max. current dissipated by one Earthing Plate = Current Density x Surface area of electrode.
What is the specification of GI earth pipe?
Product Specification
| Length Of Rod | 3 MM |
|---|---|
| Thickness | 2.5 |
| Material | Galvanized Iron (GI) |
| Usage/Application | Earthing |
| Diameter | 40 MM |
What is GSM in GI sheet?
Galvanized steel sheets specification The weight of zinc coating varies from 100 grams square meter (gsm) to 750 grams square meter. The weight of zinc coating varies with the thickness of the steel sheet and the application of the galvanized steel sheet.
How is Glycemic strip weight calculated?
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.
What is good earthing value?
Ideally a ground should be of zero ohms resistance. There is not one standard ground resistance threshold that is recognized by all agencies. However, the NFPA and IEEE have recommended a ground resistance value of 5.0 ohms or less.
What are the features of GI earthing strip manufacturer?
Some of the key specifications of GI Earthing Strip manufacturer include features like Optimum thickness options available, Variety of sizes available, Manufactured as per International Standards, etc. which facilitate our clients with a great experience doing business with us.
What are the different types of earthing materials?
There are four type of earthing materials 1. 2. G.I Earthing Strips 3. G.I Earthing Wire 8 g 4. G.I Stay Wire 7/10 1. Galvanized Earth Plates 2. G.I Earthing Strips 3. G.I Earthing Wire 8 g
Why are Gi earthing plates used in industrial use?
Our range of GI earthing plates is widely demanded in the market owing to their features of corrosion resistance, shock resistance and high durability. Extensively used for industrial purposes, these are in strict compliance with set industrial standards
How big should a plate earthing chamber be?
In plate earthing chamber should be made whose depth should be app. 2.5 to 3 mtr and diameter should be app. 600 mm (as per plate size).