Answer
The service panel only
Category
Electrical
Question Type
Memorize
Great! Here's a simple breakdown of the terms grounded, grounding, and bonding, which often confuse people — but once you get the logic, it clicks:
⚡ 1. Grounded Conductor (Usually the Neutral)
- What it is: A current-carrying wire that returns electricity to the source.
- Color: White or gray.
- Why it's called “grounded”: It's intentionally connected to earth at the service panel, to keep the voltage stable and provide a reference point for the system.
- Key role: Completes the normal circuit loop.
🟩 Example: The neutral wire in a standard outlet circuit.
🛡️ 2. Grounding Conductor (aka Equipment Ground)
- What it is: A safety wire that carries fault current only in emergencies — like when a hot wire touches a metal appliance.
- Color: Bare copper or green.
- Where it connects: To metal parts of outlets, appliances, panels — and eventually to a ground rod.
- Purpose: Gives stray electricity a low-resistance path back to earth to trip the breaker and stop the hazard.
🟩 Example: The green or bare wire connected to the metal case of a washing machine.
🔗 3. Bonding
- What it is: The process of connecting all metal parts together electrically — like the metal piping, metal boxes, and panels — so they’re at the same voltage.
- Purpose: Prevents shock from voltage differences between metal parts.
🟩 Example: Bonding the cold water pipe and panel together so a person touching both won’t get shocked if a fault occurs.
✅ In the Service Panel:
- Neutral (grounded conductor) is bonded to the grounding conductor and to the ground rod (electrode).
- This happens only in the main panel — not in subpanels.
🔄 Quick Analogy:
Think of a plumbing system:
- Hot wire = water flowing into a faucet
- Neutral (grounded) = drain returning water back
- Grounding wire = emergency overflow drain
- Bonding = connecting all metal parts so no one gets shocked by touching two pipes
Let me know if you want a visual diagram or if you want to go deeper into subpanel setups or ground rods!