 # How to Find the Point of Disconnect (PD) With Two Points

A Point of Disconnect (PD) is a location at which two electrical circuits are separated. It is often used as a safety measure to disconnect a circuit when a problem is detected. Knowing how to find the PD with two points is essential for all electricians, as it is a task that they will be required to do on a regular basis. In this article, we will discuss how to find the PD with two points.

## Understanding the Concept of a PD

Before we discuss how to identify a PD, it is important to understand the concept of a PD. A PD is essentially a junction between two circuits, and it is used as a safety measure to disconnect a circuit when a problem is detected. This allows electricians to easily identify the source of a problem and fix it.

## Identifying the Two Points

The first step to finding the PD with two points is to identify the two points. The two points can be located in a variety of ways, such as by using a multimeter or by simply examining the wiring. It is important to note that the two points must be electrically isolated from each other, otherwise they will not be able to form a PD.

## Using a Multimeter

Once the two points have been identified, the next step is to use a multimeter to measure the voltage between the two points. The voltage should be zero, which indicates that the two points are electrically isolated from each other. If the voltage is not zero, then the two points are not electrically isolated from each other and cannot form a PD.

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## Testing for Continuity

After the voltage measurement has been completed, the next step is to test for continuity between the two points. This can be done using a multimeter, and the results should show that there is no continuity between the two points. If there is continuity, then the two points are not electrically isolated from each other and cannot form a PD.

## Indicating the PD

Once the voltage and continuity tests have been completed, the next step is to indicate the PD between the two points. This can be done by connecting a resistor between the two points. The resistor will indicate the PD by lighting up when the two points are electrically isolated from each other.

## Using the PD

Once the PD has been identified and indicated, the next step is to use the PD. This can be done by connecting the two points with a switch. This will allow the electrician to easily disconnect the circuit when a problem is detected.

## Conclusion

Knowing how to find the PD with two points is essential for all electricians. It is a task that they will need to do on a regular basis, and it is important to understand the steps involved in the process. The steps include identifying the two points, using a multimeter to measure the voltage, testing for continuity, indicating the PD, and then using the PD. Following these steps correctly will ensure that the PD is correctly identified and can be used to disconnect the circuit when a problem is detected.