Dont know if anyone gives a shit but if you are bored like me atm then you can watch pretty much all of the new movies and series on instaflixxer. I've been watching with my girlfriend lately xD
Usually using only one electrode for grounding gives poor result, using many electrode making loop around the house and connect them together with 16mm copper wire is the proper why to do it, just remember not to close the circle as it can start working as an antenna.
my friend, I did the same procedure and the resistance is giving 0.523 on average, when I use another brand of equipment other than the resistance of something close to 5.2R. is there a function in Fluke that changes the decimal places?
here in denmark the rule is that private house installations most be protected by HPFI relay with 30ma trigger and person volt max most be 50v, so 50v / 0,03A = 1666 ohm i the max ohm to ground limit and my test says only 40-50 ohm and that is well below the 1666
The NFPA and IEEE recommend a ground resistance value of 5 ohms or less while the NEC has stated to “Make sure that system impedance to ground is less than 5 ohms specified in NEC 50.56. In facilities with sensitive equipment it should be 5ohms or less.”
Indian engineers here in Saudi are all scambags with fake documents,they are fine even if they got scolded in the site by Construction Manager and PMT,what a shame for this people,it’s fine with them even if they got humiliated just for them to learn what a waste.
It dependes, if it is because the old just dont work then you can most likely place the new one nex to it, if it is high resistance to grund at the location then you have to selected a better location
The easiest way is by increasing the depth of the electrode to double you will decrease the resistance by 40%, by increasing the diameter of the electrode to double you only decrease resistance by only 10%, you can also use special dirt with a solution with bentonite clay around the electrode, that is sold in special electrical stores. Problem with bentonite is that when it is very dry it shrinks therefore creating discontinuity in the contact between the bentonite clay and the surrounding soil and this will increase the resistivity.
@@electronicatutorial it is not allowed to use tricks like changing soil or pouring water when testing, based on the Danish rules then you have to add more earth electrodes and / or move it to another location. Please do not use tricks, read and follow the rules as per your country.
@@ToomsDK No you are confused I was not referring to tricks to make measurements I know some people do that is against the rules. I meant is a chemical treatment of soil is a good way to improve earth electrode resistance when you cannot drive deeper ground rods because of hard underlying rock, for example you leave it around the earth rod permanently. Magnesium sulfate, copper sulfate, and ordinary rock salt are suitable non-corrosive materials and are widely used you can google it.
I WOULD LIKE TO THANK YOU SOOOOOO MUCH FOR YOUR VIDEO.
Hi…thank you. Very informative.
Great video. Thank you.
Dont know if anyone gives a shit but if you are bored like me atm then you can watch pretty much all of the new movies and series on instaflixxer. I've been watching with my girlfriend lately xD
@Roger Paul definitely, I've been watching on Instaflixxer for years myself :D
Usually using only one electrode for grounding gives poor result, using many electrode making loop around the house and connect them together with 16mm copper wire is the proper why to do it, just remember not to close the circle as it can start working as an antenna.
I think that depends on what country your in and local law and rules, in Denmark one electrode is often more then good good enough.
super
What is the current flow through electrode?
cannot remember it, it was long time ago
my friend, I did the same procedure and the resistance is giving 0.523 on average, when I use another brand of equipment other than the resistance of something close to 5.2R. is there a function in Fluke that changes the decimal places?
Isn't the resistance supposed to be less than 1 ohms ?
here in denmark the rule is that private house installations most be protected by HPFI relay with 30ma trigger and person volt max most be 50v, so 50v / 0,03A = 1666 ohm i the max ohm to ground limit and my test says only 40-50 ohm and that is well below the 1666
The NFPA and IEEE recommend a ground resistance value of 5 ohms or less while the NEC has stated to “Make sure that system impedance to ground is less than 5 ohms specified in NEC 50.56. In facilities with sensitive equipment it should be 5ohms or less.”
Indian engineers here in Saudi are all scambags with fake documents,they are fine even if they got scolded in the site by Construction Manager and PMT,what a shame for this people,it’s fine with them even if they got humiliated just for them to learn what a waste.
Hello, I need to know something. Are the stake of aluminum? or what kind of material?
they are not alu, it is some type of hard steel
If the resistance is too high, how many in meters do you put the extra spike apart from the existing one??
It dependes, if it is because the old just dont work then you can most likely place the new one nex to it, if it is high resistance to grund at the location then you have to selected a better location
The easiest way is by increasing the depth of the electrode to double you will decrease the resistance by 40%, by increasing the diameter of the electrode to double you only decrease resistance by only 10%, you can also use special dirt with a solution with bentonite clay around the electrode, that is sold in special electrical stores. Problem with bentonite is that when it is very dry it shrinks therefore creating discontinuity in the contact between the bentonite clay and the surrounding soil and this will increase the resistivity.
@@electronicatutorial it is not allowed to use tricks like changing soil or pouring water when testing, based on the Danish rules then you have to add more earth electrodes and / or move it to another location.
Please do not use tricks, read and follow the rules as per your country.
@@ToomsDK No you are confused I was not referring to tricks to make measurements I know some people do that is against the rules. I meant is a chemical treatment of soil is a good way to improve earth electrode resistance when you cannot drive deeper ground rods because of hard underlying rock, for example you leave it around the earth rod permanently.
Magnesium sulfate, copper sulfate, and ordinary rock salt are suitable non-corrosive materials and are widely used you can google it.
Make a tutorial video with a pliers
uh. uh. uh.