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In countries that are governed by electrical codes, electrical contractors abide by the rules set out in their areas code books. Within these publications there is information for the electricians that are doing the work. Conductor selections and calculations are used for proper sizing of wire. Pre calculated tables and rules tell the sizes and the method to install the equipment so that at the end of the project when the job gets its safety inspection, it will pass.
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What is plate earthing procedure?
pipe earthing is done outside the tower, a hole of required diameter and depth is excavated and a pipe filled with coke and salt is put inside that hole which will be connected to the earth strip eventually connecting to the foot of the tower. The other method of tower earthing is counterpoise in which galvanised strip of wires is connected to the foot of the tower and is being earthed to a depth at some distance. Hope this answer work for you.. mohit sharma
What is calculated load?
A calculated load in electrical terminology is the sum of all of the loads that are connected to a system. To size a service distribution for a home all of the connected loads have to be calculated in. Some loads can be derated as per the electrical code. When the total amperage is calculated from the sum of all of the loads, the wire size and distribution can be sized to handle the calculated load.
Mathod of earthing?
pipe earthing is the best form of earthing and is very cheap in cost. in this method a galvanised iron pipe of approved length and diameter is placed up right in a permanently wet soil. the size of the pipe depends upon the current to be carried and type of soil usually the pipe used for this purpose is of 38mm and 2.5m in length the depth at which the pipe must be buried depends upon the moisture of the ground. the pipe is placed at a depth of3.75m. the pipe is provided with a tapered casing at the lower end in order to facilitate the driving
What is the size of sewer drains?
Size of any drain is calculated by fixture units (7.48 gallons) and pitch of pipe with many codes giving a bare min sizes
What is the mission of the MOS marking team?
the mos team layouts of the minimuim operating strip, establishes travel routes, and ids crater size and location
What is plate earthing procedure?
pipe earthing is done outside the tower, a hole of required diameter and depth is excavated and a pipe filled with coke and salt is put inside that hole which will be connected to the earth strip eventually connecting to the foot of the tower. The other method of tower earthing is counterpoise in which galvanised strip of wires is connected to the foot of the tower and is being earthed to a depth at some distance. Hope this answer work for you.. mohit sharma
Who was the first person who calculated the size of Earth using geometry?
Erasthothenes
Why earthing hole is big in socket?
The earthing hole in a socket is typically larger to accommodate the larger earth pin of a plug. The earth pin is designed to be longer and thicker to ensure a secure connection and proper grounding of the electrical device for safety. The larger size helps to prevent accidental disconnection and ensures a proper earth connection.
How do you design earth cable and earth pit calculation?
To design an earth cable and earth pit system, you need to first calculate the soil resistivity of the site. Then, determine the required earthing resistance based on the equipment to be protected. Choose an appropriate cable size based on the calculated current-carrying capacity, and determine the length needed to achieve the desired resistance. Finally, design and construct the earth pit with proper dimensions and materials to ensure effective grounding.
How can calculate cu bus-bar breaking capacity?
Earthing busbar size
Design of earthing mesh in substation?
The mesh size in the earthing design for substation can be various size depend on the area. For area that does not contain equipment, we could increase the mesh size because there is no equipment to cause touch potential. But if the area is at the corner of the substation, the mesh size should be smaller because to limit the step potential.
How do you select earthing conductor size of any motor panel etc?
The ground wire size is determined from the current carrying capacity of the motor feeders.
Who calculated the size of earth?
The Greek mathematician and astronomer Eratosthenes is credited for calculating the Earth's circumference around 240 BC. He did so by comparing the angle of the shadow cast by a vertical stick at noon in two different cities and using basic trigonometry to estimate the Earth's size.
Method of earthing?
In plate earthing we make chamber whose depth should be app. 2.5 to 3 mtr and dia should be app. 600 mm(as per plate size).we insert a cu/GI plate as per required size (app. 600x600x3/5) and two cu/GI strip should be attached vertically with this plate which should be properly bolted.Among these strips we fixed a GI pipe whose dia. app. 2.5"placed centrally for filling water.Then fill salt, coal and soil in this chamber. Finally make a flap on this chamber for protection and maintenance work
How much does a bimetallic strip cost?
The cost of a bimetallic strip can vary depending on the size, material, and manufacturer. On average, a bimetallic strip can range from a few dollars to tens of dollars.
Is the earth bigger or the same size or smaller than earth?
my guess is earth is the same size as earth
What planet is the same size of the planet earth?
No planet is exactly the size of Earth. Venus is close to Earth's size but slightly smaller.
