Recent questions tagged lightening

Description : Why does it feel so cozy / comfy / scary sitting in the house in a thunderstorm so strong that the thunder shakes the house, down to the couch you're sitting on, and the lightening knocks out the power every 20 minutes?

Last Answer : Not sure, something primal I suppose. Nothing beats a good thunderstorm in the evening though.

Description : When lightening strikes the earth how deep does it go? Are buried hydro/phone lines at risk of frying?

Last Answer : answer:Here is some interesting data (emphasis is mine) from tests that Sandia Labs did after the Sago Mine explosion. (Sandia Labs are experts on lightning danger.) For measuring propagation ... a known ignition source of flammable methane mixtures that can accumulate in sealed sections of mines.

Description : A thyrite type lightening arrester :

Last Answer : A thyrite type lightning arrester : offers low resistance path to surge currents

Description : A lightening arrester connected between the line and earth in a power system  (1) protects the terminal equipment against travelling surges (2) protects the transmission line against direct ... suppresses high frequency oscillations in the line (4) reflects back the travelling wave approaching it

Last Answer : A lightening arrester connected between the line and earth in a power system protects the terminal equipment against travelling surges