WHITEPAPER: Electrical Ground Rules Part 2

Best Practices for Grounding Your Electrical Equipment

This Electrical Ground Rules paper is Part 2 of a three-part series that takes a look at grounding and its role in protecting personnel and equipment, and ensuring the integrity of electrical signals. Part 2 examines electrical ground rules in more depth, and includes answers these questions:

  1. What does a wired earth ground really protect you from?
  2. Does it protect you from electrocution?
  3. What if your appliance does not include a connection to earth ground and you become the path of least resistance for some sort of ground fault?

We begin with a discussion on the use of ground as a means of protection from ground faults. Additionally, we cover how ground fault circuit interrupter (GFCI) devices operate to protect us from severe shock.

Also see:

  1. Electrical Ground Rules, Part 1: Best Practices for Grounding Your Electrical Equipment:
    • addresses the concept of grounding, the AC power system and its use of ground
    • gives three main reasons why we ground electrical equipment:
      1. safety
      2. stabilizing electrical signals
      3. limiting transient voltages and current
  2. Electrical Ground Rules, Part 3: Best Practices for Grounding Your Electrical Equipment:
    • reviews ground and its role as a voltage stabilizer and transient limiter
    • offers tips on what you can do to improve your connection to ground to realize benefits to safety and signal integrity