Journeyman Refresher Program

Program DETAILS

Training Hours: 150+ Sections: 10 Exams: 10 Tuition: $602 per module, per trainee Online Testing (optional): Online Testing fee of $50 per apprentice is waived through 2021. Training Videos: Included with tuition

See pages 24-29 for section descriptions.

2.7 LOW VOLTAGE

Low Voltage

A low voltage condition will typically cause an increase in current in the customer’s system. This higher current fl ow can cause increased heating of connectors and circuit breakers. Electronic devices are very sensitive to low voltage conditions. The more common characteristics are:

• Dim lights • Motors taking longer to start • Motors have less torque • Circuit breakers tripping for no apparent cause • Improper operation of certain electronic equipment

Possible Causes – Utility Side of the Meter

Consider these possible causes when the trouble investigator determines that the source of the low voltage problem is the responsibility of the utility to correct:

Poor Connections

Improper or corroded connections can cause a low voltage problem because the added resistance at the connector will create a voltage drop. This can be quite common on underground runs when the insulation is nicked during installation or by customer excavation activities. Checking voltage across the connector will demonstrate the integrity of the connection. If the voltmeter reads zero, the connector is fi ne. If a voltage is present, the connection needs to be replaced.

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Poor connection detected with voltmeter CHAPTER TWO | INVESTIGATING CUSTOMER COMPLAINTS

Northwest Lineman College

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OVERVIEW

This program is designed to enhance the knowledge of journeymen linemen working in the power delivery industry.

SECTIONS

• Live-Line Equipment and Methods • Trouble Investigation • Crew Leadership • Electrical Systems • Advanced Transformers • OSHA for Power Delivery • NESC 1 • NESC 2 • Personal Protective Grounding • Metering • RUS Standards (optional)