Abbreviated Electrical Group Names

It’s best to avoid naming cables with descriptions such as:

• Living room outlets
• Grandmother’s room lighting
• Terrace outlet near the garage, etc.

Such names are impractical for labeling cables on site and can lead to errors.

On one project where I connected a distribution board, the same cable was labeled differently in various places:

1. On the cable — Outlets by the Window
2. In the cable log — Manager’s Desk Outlets
3. On the distribution board schematic — Outlets for Michael

There were over a dozen such cables.

Each cable required clarification, which slowed down the work and increased the risk of connection errors.

Using standardized abbreviations allows for quick identification of cables on site and simplifies documentation.

I recommend naming cables like 5OUT1
5 — room number,
OUT — outlets,
1 — outlet group number in the room.

Learn More About Room Numbering

This method clearly indicates the cable’s destination room and purpose (outlets or lighting), which is particularly useful for smart home designs. It also makes it easy to label the cable or tag directly on site.

• Outlet group — OUT
• Lighting group — LGT
• Air conditioners — AC
• Underfloor heating — UFH
• Water heater — WH
• Tankless water heater — TWH
• Cooktop — CT
• Oven — OV
• Microwave — MW
• Kitchen counter outlets — KCO
• Leak sensor — LS
• Fan/Extractor — FAN
• Temperature sensor — TS
• LED strip — LED
• You can create other project-specific abbreviations — shorter is better, but ensure clarity.

Note: These abbreviations are suggested for this system and may not align with international standards. Always verify compatibility with local regulations.

On site, installers will label cables as specified and use the cables listed in the cable log, regardless of what 4TWH1 represents in your project.

If needed, include a legend in the cable log for unusual abbreviations to avoid confusion later (e.g., recalling what 5CT2 means in six months).

Share your abbreviations, and I’ll add them to the list.