Checking customer receptacle voltage pins with customer CB off (plug in)

1. Measure the voltage between each pair of voltage pins ( A ,  B , and  C ) on the customer outlet.
2. Measure the voltage between each voltage pin and ground pin on the customer outlet.

Did any voltage measure more than 1.0 V ac? Refer to Figure 1 or Figure 2 for the location of the voltage pins.

• Yes, inform the customer that one or more voltage pins on the customer receptacle measured greater than 1.0 V ac even though the circuit breaker is off. Do not continue until the voltage is less than 1.0 V ac.
• No, continue with the next task, Checking customer receptacle voltage pins with customer CB on (plug in).

Figure 1. Measuring voltage between each pair of pins

Figure 2. Single phase, voltage pins