quarta-feira, 9 de outubro de 2013

The Mass of Electron is 1840 Times Lower than Proton.

In lightning current discharge between cloud and ground, two rays are generated in opposite directions, a long blue ray of electrons (downwards) and a short orange ray of proton (up). If the Mass of Electron is 1840 times lower than Proton, the current ratio is greater than 1/1840 because the force of gravity on the electron ray (downwards) has the same direction and on proton ray (up) has opposite directions when the cloud is negative and the collision of rays occurs nearest the earth.
But the atoms are composed not only of protons and electrons. What happens to the other particles? Who knows?


The Gas Discharge Tube (GDT) in Telecommunications


 Gas Discharge Tubes Can Be a Bad Option



The Gas Discharge Tube (GDT) in telecommunications is to protect and to prevent the voltage at the circuit lines rises above a certain value relative to ground potential.


But if the ground, near an outdoor telecom box is affected by a high voltage current discharge (lightning or power lines), its potential will rise and through activated GDT will be transferred over telecommunications circuit lines and may cause severe damage and endanger workers and customers.

quinta-feira, 3 de outubro de 2013

Measure the Resistance of an Ground Electrode with a Clamp-On System is a Misconception

The goal of a measurement of earth/ground resistance is determine the value of the real part of the impedance between an electrode and the conductive mass of planet earth.

Only the methods by potential drop guarantee the accuracy of a measuring earth/ground resistance. 



Innovative earth/ground testers allow not disconnecting the electrode ground conductor from the master ground bar, by introducing a clamp to record the current injected into the electrode for the purpose of calculation of the value of ground resistance.



Some people want to measure the resistance of an earth/ground electrode using a Clamp-On system. This is a misconception. The system consists of two clamps coupled mechanically so as to simultaneously enlace a conductor loop. A clamp generates a current proportional to the unknown resistance of the loop and the other measuring the current loop in order to determine the loop resistance.