NEC 2026 changes for data/communication wiring

[Sean Donelan via NANOG <nanog () lists nanog org>]

The 2026 National Electrical Code is ready for publication.

The scope of Chapter 8 is changed from all building communication system 
installations, to only communications wiring outside or at the cable 
entrance point.

Data/Communication system wiring is now in Chapter 7, which means it will
be covered by general NEC requirements.  For those designing data centers 
after 2026, many data/communication installation "best practices" will 
become code requirements.

Probably the biggest change will "working clearances" for communications 
equipment in wiring closets and cabinet door openings in data centers.

No more cramming equipment into shared closets or draping cables across 
the room. After the 2026 NEC is adopted, building code officials will be 
able to enforce those requirements.
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