Loop method using Fluke 1653

[davesparks]

Sorry!
Customer measured earth resistanse with 3-pole method (1.6 ohms measured value) and asked us to check this results, so i tried it and got 0.16 - 0.2.

What exactly do you mean by earth resistance?

 

[trev]

its a ring final circuit. a socket circuit with two cables going back to the supply usually aranged in a ring to reduce the amount of cable needed

So what about a lighting circuit, or one powering a motor or an AC unit? Aren't they final circuits?

 

[hahol89]

What exactly do you mean by earth resistance?

earthing conductor resistance

 

[rustynails]

earthing conductor resistance

To obtain an accurate resistance measurement of an individual conductor, such as r2, you will need to perform a continuity test. This is a dead test. You will need to disconnect one end of the conductor and measure the resistance using your Fluke set to continuity from one end of the conductor to the other. This method of measuring r2 is called the 'long lead method'. See IET Guidance Note 3 for more information on dead testing.

Everybody, who knows anything on here has given you the right advice regarding the no trip earth fault loop impedance testing with your fluke. Perhaps, you mean earth leakage...

Or perhaps this is a wind up?

 

[hahol89]

To obtain an accurate resistance measurement of an individual conductor, such as r2, you will need to perform a continuity test. This is a dead test. You will need to disconnect one end of the conductor and measure the resistance using your Fluke set to continuity from one end of the conductor to the other. This method of measuring r2 is called the 'long lead method'. See IET Guidance Note 3 for more information on dead testing.

Everybody, who knows anything on here has given you the right advice regarding the no trip earth fault loop impedance testing with your fluke. Perhaps, you mean earth leakage...

Or perhaps this is a wind up?

You absolutely right, i mean earth leakage resistance, sorry but this is difficulties of translations))

 

[rustynails]

You absolutely right, i mean earth leakage resistance, sorry but this is difficulties of translations))

earth leakage is just earth leakage current not resistance, which is measured in milliamps. You will need an earth leakage clamp meter, something like this would do, your fluke will not help you.

Kewtech KEW 2434 High Resolution Earth Leakage Clamp Meter

if it's medical equipment then I would suppose you will need one with a high resolution.