Hello, this is Kyoritsu Japan. It is so honor that you used our product. We highly trust we can learn more from your excellence in feedback on electrical equipment. If you don't mind, we can contact via email.
Hiiii... You mean, first disconnect the earth cable from earth pit?? OR Can we shutdown the entire system before measuring earth resistance?? Pls guide
Hi sir. You did a very informative video thanks. I've a question for you.In the video you did the test on a big compound. I'm in a terrace house and the compound is very limited. I can't pull the yellow and red cable that long..only 3-4 meters to the nearest soil. Will it affect the reading? Please advice thks.
Yes it should be disconnected from service. If the voltage is more than 10 it will destroy the meter and also give false reading. Please read the user manual reg the max voltage limit that the meter will work safely in energised service without disconnection.
Thank you for the effort made in the video.... I have a question... Is it true that the yellow wire is supposed to be an extension of the red wire, meaning on one line to give the reading... Why change in yellow only and should it be changed in red? ??
When current is injected into the earth, then the voltage will change around the location of injection. The voltage reference cable spike needs to be some distance from the points where current is injected or removed, in order to try and find a location with minimal disturbance of earth voltage potential.
Hi, I have a Kyoritsu 4105A unit too, and I am getting "1. . ." reading at 20 ohm dial, who do you think is the problem, and how to fix this? Thank you.
@@nasiadomary4893 1. If possible increase the depth of electrode. 2. Insert another electrode at a distance of at least twice the buried depth of 1st electrode and link both at top. Eg.: If 1 st electrode buried depth = 3 M then second electrode should be installed at a distance of minimum 6 M away and both should be linked with wire or strip at the top. 3. Wet the pit by watering because dry earth is a bad conductor. Note : Chemical electrodes are fraud work. Hope all this helps.
Not really it depends on the situation and regulations of the country. We usually do it at the installation state, we check each time the rod is inserted to the earth. These guys in the video are doing inspection for application form.
I have to perform this same test but outside of the building is all concrete, a shower room will be built in the basement but first the neutral to earth voltage needs to be tested, so how would I go about this?
Check with normal clamp or multimeter in volts mode between earth and neutral of any 3 pin socket connected to that service. The voltage value should be below 2. Hope this helps.
Jika persekitaran rumah tamn agak sukar nk ambil bacaan,sb permukaan tanah @ berturap simen Dan jalan tar. 1- minutes 6.15 mase kita clamp wayar di electrod bumi.yg seeloknya copper tape @ cable incoming perlu ditanggalkan @ tidak semasa nak ambil bacaan.klu sye lihat Tuan x buka ..
Thumb rule for current spike distance from electrode = Minimum 8 to 10 times the buried depth of earth electrode. Eg., If earth electrode is 3 M long then C spike should placed about 24 to 30 M distance. This is to avoid '"zone of influence"' factor. Most manufacturers wont tell this because the distance will affect their tester sales in city and town areas where space is congested. So they suggest 5 M and 10 M which will not yield correct value. I challenge Kyoritsu in this matter.
Hi sir I have a doubt. Could you please tell me the difference between 2 point, 3 point method. In megger it has 4 terminals C1, C2, P1, P2. how to measure earth pit resistance?
Short C1 and P1 and connect to electrode under test. P2 is for potential and C2 is for current spike. This is known as 3 point or Fall of Potential method. 4 terminals method is for testing soil as per Wenner method. This is for civil guys and not for electrical guys. Reg 2 point earth pit resistance testing: In India we don't/cant use this method because our public water supply is thru PVC pipes which is non conductor. Hope this helps.
Saya nak tanya, bukankah testing dibuat semasa pemasangan rod sahaja (sebelum kita sambungkan dengan earth DB atau sebelum sambung ke perlindungan kilat)
One more thing what's the distance between two consecutive Earth Pit what's the exact standard if you can please explain this the the minimum distance between two consecutive Earth pits
@@bruce.bchannel9046 boleh tambah point lagi tu..atau guna wayer tembaga bogel gulung jadi kan coil...tanam terus dlm tanah.hujung nya sambung ke electrod yang sedia ada..
It depends on your country standards. But the Best is the nearest to 0 ohms which is imposible to get 0 ohms. Also there are many methods to make the measurraments, it depends on your country standards too.
green wire is for grass. grass is green. make sense right? put green wire on grass and see resistance of grass. grass is green, green wire is green too. make sense right? right.
Use a combination of vertical and horizontal grounding! My tip would be get copper/or in poorer countries galvanized pipe works well enaugh and install it in conjunction with galvanized steel bar/ or do the same but with copper if you can afford it!
Kedalam nya sehingga rod gak bisa masuk lagi..baru di uji..jika masih tidak mendapat kan bacaan yg dikehendaki..buat point baru sehingga mendapat bacaan yg paling rendah
Very Very different to how it's done in the UK, In the UK those reading wouldn't be satisfactory but the method is way different so I don't know. Interesting though
@@azleeman biasanya ada 2 jenis earth tester yg selalu diguna measure grounding resistance. yg dlm video ni guna kyoritsu & location potential spike tu ditengah2 antara ground rod & current spike. yg satu lg jenama megger tapi jarak potential spike tu 62% dari jarak antara earth rod & current spike. & potential spike tu kena ubah 10% ke depan % 10% ke belakang dari kedudukan asal & diambil average dr 3 reading td. mungkin kat uk guna jenama megger sbb tu dia ckp different dgn kt sini.
The valor is over the Range selectionated in the istrument or the cables are not conected correctly to the Spikes You should to check again all the conections. If the problem continue changue the Spikes of place.
It need not be inserted. Wrap the spikes in wet towel and place them horizontally on the concrete floor with weights (stone) placed on the sack. Wet the whole area by watering.
when lightning strikes the earth doesn't the surge enter the house via the earth wiring? If so isn't it dangerous, probably better not to have any earthing system at all?
Earth Impedance/resistance. 20ohms is the range of that particular selection of the meter. If there is no reading in that range, we need to find it in the next range which is 200ohm range, and if still no reading needs to step up to the next range which is 2000ohm. Earth Impedance/resistance depends on the regulations of the country. For example my country only allows under 50ohm for residential areas, under 10ohm for public areas and under 1ohm for substation/transformers/high sensitivity industrial equipment.
Without much noise around, explained in a simple practical way...Thanks Rictor
Shifting potential spike towards right and left is wrong.
The video I was looking for! Excellent explanation of the test. Thank you so much!
Ps: The background music is pleasant and appropriate!
You demonstrate this critical task to look easily, Thank you very much a learn a lot through your video.
Hello, this is Kyoritsu Japan.
It is so honor that you used our product.
We highly trust we can learn more from your excellence in feedback on electrical equipment.
If you don't mind, we can contact via email.
Great You from Kyoritsu Company Right
Mudah untuk difahami... Lama mencari video earthing test untuk menambah ilmu. Terima kasih boss
Thank you Sir this video very useful for all Electrical engineers
should be disconnecting earth cable from house to ground chamber first. so you will get the purest ground resistance.
Hiiii...
You mean, first disconnect the earth cable from earth pit??
OR
Can we shutdown the entire system before measuring earth resistance??
Pls guide
Disconnect the earth cable.
Of course he must have done that before starting the test otherwise the resistances of home equipment will distort the result
Video paling sng difahami...tq sgt2
This teaching very useful and very easy to understand. Thanks and appreciate it 😊
Shifting potential spike towards right and left is wrong.
Thanks for this very informative vedio. More power.
Thank you very much for your sharing very informative tips☺️
Very nice vedio 👌👌kudos to your effort 🙏🙏👌
Shifting potential spike towards right and left is wrong.
Tq Sir. Clear and easy to undrstand. This place is like "Bukit Bendera" 😅
Yes bro..bukit bendera..tqvm
thanks to your efforts, it is very helpful .. thank you..
easy to understand,thank you sir for wharing the information for us
very easy to follow... you earned a subscriber!❤️😊
Shifting potential spike towards right and left is wrong.
Hi sir. You did a very informative video thanks. I've a question for you.In the video you did the test on a big compound. I'm in a terrace house and the compound is very limited. I can't pull the yellow and red cable that long..only 3-4 meters to the nearest soil. Will it affect the reading? Please advice thks.
In that situation ..You can try nearest area to ground the spike ..
in that situation ..yes..
You have to maintain distance. Please read my other comments. Get permission from neighbours.
Good job..🎉 im practical test
Can i know whether before the individual earth rod being tested you have to remove the connection of the earth rod from the rest.
I am also have same question.
Yes it should be disconnected from service. If the voltage is more than 10 it will destroy the meter and also give false reading. Please read the user manual reg the max voltage limit that the meter will work safely in energised service without disconnection.
Thank you for the effort made in the video.... I have a question... Is it true that the yellow wire is supposed to be an extension of the red wire, meaning on one line to give the reading... Why change in yellow only and should it be changed in red? ??
Below 5ohm is acceptable right?
Yes
Simple explainations.Easy to underdstand
Shifting potential spike towards right and left is wrong.
mantap tutorial nya .👍👍🌟🌟🌟
Appreciate 👌👌you have done share gr8 experience with kyoritsu instrument 💐
This is sanjeev raghav from kyoritsu
Thank too .kyoritsu always the great equipment ..
This method is not FOP.
Is there a specific number of times that earth resistance testing should be done for a specific area? (like number of times per meter squard)
Good job ...thanks for sharing..
Please could you explain the operation of the meter and the readings.
Thank you sir sa video another learning for earthing system
May i know why the cable for current is longer than the voltage?
When current is injected into the earth, then the voltage will change around the location of injection. The voltage reference cable spike needs to be some distance from the points where current is injected or removed, in order to try and find a location with minimal disturbance of earth voltage potential.
Good interesting vedio😊😊😊
Thank
from Hungary
Shifting potential spike towards right and left is wrong.
Thanls for sharingbthis video. It helps me a lots
Hi, I have a Kyoritsu 4105A unit too, and I am getting "1. . ." reading at 20 ohm dial, who do you think is the problem, and how to fix this? Thank you.
It's over limit. U need to dial up the limit. Cannot use 20ohm. Because the reading is above 20 ohm
How about if the reading is 25ohms
What can i do to get less than 5Ohms?
@@nasiadomary4893 1. If possible increase the depth of electrode.
2. Insert another electrode at a distance of at least twice the buried depth of 1st electrode and link both at top. Eg.: If 1 st electrode buried depth = 3 M then second electrode should be installed at a distance of minimum 6 M away and both should be linked with wire or strip at the top.
3. Wet the pit by watering because dry earth is a bad conductor.
Note : Chemical electrodes are fraud work. Hope all this helps.
@@30mAkills
Thanks🙏🙏
Sir, how 1). If earth got voltage, what is the next action.. 2). When to use the setting mode 200 & 2000? Apprecite ur answer
Keep up the good work
Thank you sir sa video
if we had no access to such equipment will adding more grounding rods to the ground all connected together potentially reduce the earth resistance?
Yes.
@@rictorrictor888 🐱👍🏿
What about the grounding rod resistance?each rod shall be tested and removed all connected cable before the test of total resistance grounding.
Not really it depends on the situation and regulations of the country. We usually do it at the installation state, we check each time the rod is inserted to the earth. These guys in the video are doing inspection for application form.
It was beneficial
Very good👍🏻
I have to perform this same test but outside of the building is all concrete, a shower room will be built in the basement but first the neutral to earth voltage needs to be tested, so how would I go about this?
you silly person. what sort of system are you on?
Check with normal clamp or multimeter in volts mode between earth and neutral of any 3 pin socket connected to that service. The voltage value should be below 2. Hope this helps.
@@frankkennedy7831
Perhaps you are the silly person making such an inappropriate comment! 🤢
Sir ummmmmmmmmmbu
To individually test the earth rod disconnect tape from earth rod
Does it mean now the earth resistance is perfect?
Jika persekitaran rumah tamn agak sukar nk ambil bacaan,sb permukaan tanah @ berturap simen Dan jalan tar.
1- minutes 6.15 mase kita clamp wayar di electrod bumi.yg seeloknya copper tape @ cable incoming perlu ditanggalkan @ tidak semasa nak ambil bacaan.klu sye lihat Tuan x buka ..
kalau kawasan tar @ bersimen, boleh guna metal screen @ earthing mat. letak pada jarak yg ditetapkan & siram dgn air jd blh buat measurement
What about the distance btn the spikes does it matter !?
5 meters up to 10 meters it depends on soil type
Thumb rule for current spike distance from electrode = Minimum 8 to 10 times the buried depth of earth electrode. Eg., If earth electrode is 3 M long then C spike should placed about 24 to 30 M distance. This is to avoid '"zone of influence"' factor. Most manufacturers wont tell this because the distance will affect their tester sales in city and town areas where space is congested. So they suggest 5 M and 10 M which will not yield correct value. I challenge Kyoritsu in this matter.
@@30mAkills
Thank you for this comment - can you please provide some formal references to confirm y you our comment - Thank you!
hi sir. how do you perform it in a building where there is no earth ground to put the spike?
Extent green wire..
For condo there should have main electrical grounding
Hi sir I have a doubt. Could you please tell me the difference between 2 point, 3 point method. In megger it has 4 terminals C1, C2, P1, P2. how to measure earth pit resistance?
Short C1 and P1 and connect to electrode under test. P2 is for potential and C2 is for current spike. This is known as 3 point or Fall of Potential method.
4 terminals method is for testing soil as per Wenner method. This is for civil guys and not for electrical guys.
Reg 2 point earth pit resistance testing: In India we don't/cant use this method because our public water supply is thru PVC pipes which is non conductor. Hope this helps.
Будьте любезны,выложите такое же видео с прибором KEW 4106,спасибо!!!
What is the accurate value for best low resistance using Megger machine
0 ohm
@@rictorrictor888 Practically not possible. Is earth full of gold?
@@rictorrictor888
I wish 😂
What readings should tell me that the resistance is not okay please
depend on local regulation ..as lower as possible. .below 10ohm
Tumpang tanya, kan ada 20ohm, 200ohm, dan 2000ohm. Yang tu nak laraskan berdasarkan faktor apa ye?
dasarkan 20ohm setting
Good work 👍
Shifting potential spike towards right and left is wrong.
The test should be done preferably during the driest season to prevent moisture from ruinning your values!
I have a question, engr. Why is it required in the earth resistance tester manual to damp the surroundings?
@@File-Transfer I don't know about that
Sir what is the porpuse for higher ohms setting.is it same result as 20ohms setting.thanks
Yes..same.
For soil testing and also in hill areas.
the operator wears the helmet because there are suspended loads?
He worries falling mango fruit..hahaha
@@rictorrictor888 hahahaha ;-)
there are flying cats around in the neighborhood
Thank you very much sir Many Thanks
Saya nak tanya, bukankah testing dibuat semasa pemasangan rod sahaja (sebelum kita sambungkan dengan earth DB atau sebelum sambung ke perlindungan kilat)
Kedua2 nya boleh ..sebelum dan selepas ..Sebenarnya Cooper tape itu bukan utk pelindung kilat..
video excelente parabens , abraços do Brasil .
One more thing what's the distance between two consecutive Earth Pit
what's the exact standard if you can please explain this the the minimum distance between two consecutive Earth pits
20 meter center spike 20 meter end spike from center spike
Macam mna kalo erathing buat ats tnh bacaan bukit tu tnh...
tetap kena dapat kan bacaan bawah 10 ohm juga...tapi ada kaedah2 untuk menurunkan bacaan jika di buat atas tanah berbukit..tq
Sa lbih 15ohm bgtu
Nnti whatapps kmi 0138724857 mhu tnya kaedah lain
@@bruce.bchannel9046 boleh tambah point lagi tu..atau guna wayer tembaga bogel gulung jadi kan coil...tanam terus dlm tanah.hujung nya sambung ke electrod yang sedia ada..
Mcm mna cara ti
Hi Rictor , may i know how to know the result is good or bad? Many Thanks
low in reading is the batter .must below 10ohm.some time we can get 0 ohm. that the best..
It depends on your country standards. But the Best is the nearest to 0 ohms which is imposible to get 0 ohms. Also there are many methods to make the measurraments, it depends on your country standards too.
Thanks again
The green wire is for?
electrode wire..
green wire is for grass. grass is green. make sense right? put green wire on grass and see resistance of grass. grass is green, green wire is green too. make sense right? right.
Thank you Engineer
Hello Sir,what if the result is above 10,let say 50..how can you improve this to 5?
Use a combination of vertical and horizontal grounding!
My tip would be get copper/or in poorer countries galvanized pipe works well enaugh and install it in conjunction with galvanized steel bar/ or do the same but with copper if you can afford it!
add more earthing rods all around the place the more the better🐱👍🏿
All earth rod supplies these days are carbon steel with copper coating add to and go deeper using brass connection.
Sir the result you shown is that good or bad grounding
Good ..under 10 ohm
Thanks sir......
Om untuk mengetahui brp kedalaman grounding rod yg di tanam bagaimana ya ? 🙏
Apakah bisa di test dgn ohm meter tersebut
Kedalam nya sehingga rod gak bisa masuk lagi..baru di uji..jika masih tidak mendapat kan bacaan yg dikehendaki..buat point baru sehingga mendapat bacaan yg paling rendah
Sir, can I set the tester 200ohm? Should I take that result? Thank you 🙏
yes..
Hadir nyimak 👍
thank you so much
Good sir 👍
Shifting potential spike towards right and left is wrong.
Salute sir
Why the leads are in same line? pliz assist me sir.
thanks for sharing
Very Very different to how it's done in the UK, In the UK those reading wouldn't be satisfactory but the method is way different so I don't know. Interesting though
Maybe the humidity in UK is different if we compare to Malaysia. The water in soil can effect the meter reading.
@@azleeman biasanya ada 2 jenis earth tester yg selalu diguna measure grounding resistance. yg dlm video ni guna kyoritsu & location potential spike tu ditengah2 antara ground rod & current spike. yg satu lg jenama megger tapi jarak potential spike tu 62% dari jarak antara earth rod & current spike. & potential spike tu kena ubah 10% ke depan % 10% ke belakang dari kedudukan asal & diambil average dr 3 reading td. mungkin kat uk guna jenama megger sbb tu dia ckp different dgn kt sini.
All over the world FOP (Fall of Potential) method is same.
Incorrect@@30mAkills
@@johnhayhurst5884 then tell the correct. Here our earthing is TT.
What we do if earth volt not zero
Find another location for grounding the rod..
De-energize that service and procced if the voltage is more than 10.
hi sir, if the screen will perform "1 . " , what's wrong?
show me photo..
The valor is over the Range selectionated in the istrument or the cables are not conected correctly to the Spikes You should to check again all the conections. If the problem continue changue the Spikes of place.
@@octaviohurtado2779 Thank you! I'll check carefully. Good day!
@@rictorrictor888 Sorry, I don't know how to share a photo via a youtube comment. Anyway, I'll check my device. Thank you for your guidance.
Mantap tuan,done support ya,maaf lewat.. 🙏🙏
thank you sir..
I had an exams question in college how to do earth rod test . I didn’t pass it 😢
Why is the leads in the same line
Overall resistance how is it calculation sir
Total of test 1 ,2 ,3 then / by 3..it show on video min 13.20
Thank you, sir
Hi sir. If floor is concrete, how to insert voltage and currrent spikes?
break concrete and place into the soil below?
It need not be inserted. Wrap the spikes in wet towel and place them horizontally on the concrete floor with weights (stone) placed on the sack. Wet the whole area by watering.
@@fidelcatsro6948
Jesus, what planet are you on…..
@@30mAkills
Excellent explanation….
@@fje1948 planet Kittygystan 🐱 of the 23rd Constellation, why do you ask amigo?
thanks :)
Shifting potential spike in perpendicular ( left and right)direction is not correct.
Good 🙏🙏🙏🙏🙏
Shifting potential spike towards right and left is wrong.
when lightning strikes the earth doesn't the surge enter the house via the earth wiring? If so isn't it dangerous, probably better not to have any earthing system at all?
excelent ¡¡¡
well done
Tqvm
Your value of 1.63 ohms is a little high. Ideally less than 1 ohm is what you want...
Thanx!!
Lanjutkan
Test ini apakah harus saat listrik off?
Kalau tak ada bocor ke bumi tak perlu off. Sebab tu dia check voltage dulu.
Luar biasa kawan Videonya.
Sudah saya kirim Bungkusan komplit dan,paten, durasipun Aman. Sesuai undangan.
Ditunggu Amanahnya ya..
Ya udah juga..terima kasih..
untuk apa select ke earth voltage?
kita uji dahulu jika terdapat voltage dalam tanah.. terutamanya di kawasan kediaman yang berdekatan dengan sub station
kalau ada voltage baguslah pasang diode boleh charge bateri kereta anda🐱👍🏿
Thanks alot
Shifting potential spike towards right and left is wrong.
good
thanks
I think 1/RT = 1/R1 + 1/R2 + 1/R3
Sorry your Appying the wrong formula, it's average, not resistances in paralel
what is this aim?
Protect human and electrical equipment from electric short
whats the meaning of 20ohms, 200ohms, and 2000ohms ?
Earth Impedance/resistance. 20ohms is the range of that particular selection of the meter. If there is no reading in that range, we need to find it in the next range which is 200ohm range, and if still no reading needs to step up to the next range which is 2000ohm. Earth Impedance/resistance depends on the regulations of the country. For example my country only allows under 50ohm for residential areas, under 10ohm for public areas and under 1ohm for substation/transformers/high sensitivity industrial equipment.
@@mohamadasriabdulazid4784 ok thanks.