The standard, applied to your equipment.
Every other resource teaches NFPA 70E in the order the book is written. This series teaches it in the order the building is built — sixteen pages, each one taking the 2027 edition to a specific piece of a mission critical facility and answering the questions that actually come up there. Every threshold and table call cites its section; every page ends at the decision walk.
How each page works
Each page in the series does four jobs: it names the articles and sections that govern that equipment, it states the boundary and threshold numbers that apply — from the 2027 tables, with citations — it makes the likelihood calls for the tasks crews actually perform there, and it flags the finding we see most often in the field on that exact gear. Where a task needs the full energized-work decision, the page hands off to the 70E Tools walker rather than reprinting it.
The series assumes the 2027 edition throughout, including the renumbered Chapter 3 — dc hazards at 310, capacitors at 320, the frequency article at 330 that now owns UPS systems and drives, batteries at 360, supercapacitors at 370, photovoltaics at 380.
The power path, in order
The sixteen pages follow the electrons: utility service and medium voltage, the generator yard, transfer switching, the main switchgear rooms, UPS systems, battery rooms, PDUs and RPPs, overhead busway, and the rack-level last metre. Then the specialty systems — dc power plants, the mechanical plant, BESS and rooftop solar — and finally the human-systems pages where most incidents are actually born: racking and installs, decommissioning and cable mining, colocation shared responsibility, and remote hands.
The sixteen pages
Not sure where a task lands? Start with the walk — nine steps in the order the 2027 edition asks them — and come back to the room page for the numbers.
This is the material of the 8- and 16-hour NFPA 70E classes — taught on the 2027 edition, against data center topology, about 55 times a year. Private onsite days run against your one-lines.