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Acceptable Voltage Ranges

Voltage Relationships Based on Voltage Ranges in ANSI C84.1-1989 Voltage Ranges  Voltage is divided into two ranges: A and B. Each voltage range is listed for locations: service, utilization and lighting. Service volta...

Codes and Standards That Require an Arc Fault Analysis

110.16 Flash Protection.110.8 Working On or Near Electrical Conductors or Circuit Parts.(B) Shock Protection Boundaries. (C) Approach to Exposed Live Parts Operating at 5

Definitions

AC Equipment Ground (ACEG)Arrester Building Structural Steel (BSS) Electro-Static Discharge Protection (ESD) An Exothermic connection is a process for making a weld...

Equipment Voltage Surge Thresholds

The Information Technology Industry Council (I.T.I, formerly known as the Computer Business Manufacturers' Association, or CBEMA) provides a guideline that is a realistic, at-the-equipment, maximum allowable voltage that equi...

External Components

AC Service Entrance Disconnect Panel Station Ground Antennas (Roof Mounted) Antennas (Tower Mounted) Artificial or Chemical Ground Electrode System Coaxial Cables (Towers

Grounding Questions and Answers

  What type of equipment is considered voltage-susceptible?If our facility meets the National Electric Code, is our equipment protected?What are the symptoms of power quality problems?What is the solution to power quali...

Internal Components

AC Circuit AC Equipment Ground (ACEG) AC Circuit Isolated AC Equipment Ground (IACEG) AC Circuit Load AC Circuit Neutral AC Panel AC Power Entrance Multi-Grounded Neutral

Let SPGS Stop “Murphy’s Law” From Occurring Within Your Electrical Equipment and Systems

Murphy's Law states, "If anything can go wrong, it will" From everyones life experiences, updating of electrical systems in buildings, equipment and the normal everyday use of electricity, everyone has seen or been affected ...

Power Quality Duck Test

Duck Test The duck test is a humorous term for a form of inductive reasoning. It is explained this way: ”If it looks like a duck, swims like a duck and quacks like

Purpose Of Grounding

Personnel SafetyElectrostatic Discharge (ESD)Equipment OperationConducted Noise Reduction (RFI) The Building Safety Protection System establishes the lowest poss

What is the Purpose of a Ground Rod?

A ground rod or a ground field’s only purpose in life is to have a designed electrical path to dissipate a static discharge voltage (such as Lightning) to earth. If you place a current probe around the conductor going ...

National Electrical Code 90.1 Purpose:

(A) Practical Safeguarding. The purpose of this Code is the practical safeguarding of persons and property from hazards arising from the use of electricity. B) Adequacy. This Code contains provisions considered necessary for...

The Danger Associated With Electricity

The real danger from electricity is an electrical shock therefore dangerous electrical conditions are called shock hazards. For a human an electrical shock comes from the

Average Number of Thunderstorn Days in the United States Per Year

   

Types of Grounding Designs

External Building Earth Ground SystemHalo Ground System (HGS) usually consists of a #2 AWG minimum, non-insulated, solid or stranded wire routed around the inside perimet

Wise Statements

We found all of these statements on the internet and thought that they were very interesting. All statements we have listed the person making the statement whenever possi