History of Earthing / Grounding
When Thomas Alva Edison started his electric illuminating company and began the electrical distribution system, he used only one insulated (from earth) conductor and the earth for the return conductor. …
Concrete-Encased Electrodes – Grounding Electrode Permitted by the Philippine Electrical Code 2017 Edition
According to Philippine Electrical Code 2017 Section 2.50.3.3(A)(3) lists “Concrete-Encased Electrodes” as one of the types of electrodes permitted for grounding. (3) Concrete-Encased Electrode. A concrete-encased electrode shall consist of …
What is an Effective Grounding?
Effective grounding is essential to: Prevent the enclosure of an electrical equipment and its connected conductors rising to a potential dangerously above that of its surroundings or ground. If the …
Cable Shield and Outer Sheath Grounding (Earthing)
Cable shields and the metallic sheaths or armors need to be solidly grounded on at least one point in order to operate at or near ground potential at all times. …
Lightning Protection Of Oil And Gas Industrial Plants
Storage Tank Explosion Lightning struck a large oil storage tank on the evening of Friday, 05 August 2022 in Matanzas, Cuba, causing a huge fire. It is now spreading to …
Determining the required sizes of earthing conductors and earth electrodes
The sizes of earth conductors and earth electrodes are almost always chosen from typical sizes as provided by a particular project standard. If using non-typical sizes can extensively impact the …