The lighting systems and controls chapter in the 2023 Vol 2 edition reflects the current code cycle requirements for a topic that has grown more complex as LED technology and networked lighting controls have become standard. The current requirements for lighting circuits, control compatibility, emergency lighting, and the wiring methods for control conductors are all covered with the 2023 code reflected. My lighting and controls installations reflect the current code because this guide covered the current requirements clearly in an area where the technology and the code are both evolving rapidly.

The photovoltaic system requirements in the 2023 code cycle were refined in ways that affect every solar installation. This 2023 Vol 2 edition's coverage of the current PV requirements — the rapid shutdown requirements, the string sizing and protection requirements, the inverter installation requirements, and the battery storage integration requirements — reflects the current 2023 code with illustrations that make the system architecture and compliance requirements visually clear. For electricians working in the solar market, having the current 2023 PV requirements clearly presented is a significant professional advantage.

The outdoor recreation facilities and parks electrical chapter in the 2023 Vol 2 edition reflects the current code cycle requirements for athletic fields, outdoor amphitheaters, RV hookups, and swimming facilities. These installation contexts come up more frequently in commercial electrical work than the limited coverage in most NEC guides suggests. The 2023 requirements for each facility type are covered accurately with illustrations. My outdoor recreation facility installations reflect the current code because this guide covered the current requirements clearly in a specialized area.

I am a master electrician who supervises commercial projects and I require my foremen to have both 2023 volumes. Vol 2 2023 is the one I reference most frequently myself during project planning and design review. The equipment installation chapters — switchgear, switchboards, panelboards, motor control centers — reflect the current 2023 code requirements and are organized by equipment type with the applicable current requirements clearly identified. Having the current code cycle reflected in my primary reference for advanced equipment installation has kept my project reviews accurate and my installations compliant.

The photovoltaic system requirements in the 2023 code cycle were refined in ways that affect every solar installation. This 2023 Vol 2 edition's coverage of the current PV requirements — the rapid shutdown requirements, the string sizing and protection requirements, the inverter installation requirements, and the battery storage integration requirements — reflects the current 2023 code with illustrations that make the system architecture and compliance requirements visually clear. For electricians working in the solar market, having the current 2023 PV requirements clearly presented is a significant professional advantage.

Solid 2023 Vol 2 reference with accurate current content and good illustrations. The wiring methods and equipment installation chapters reflect the current code well. Four stars because cross-referencing between the Vol 1 and Vol 2 2023 editions could be more explicit — when Vol 2 covers equipment installation that references Vol 1 calculation content, a direct cross-reference would make the current-cycle set more useful as an integrated whole. Good guide with that note.

The temporary power and construction site electrical requirements in this 2023 Vol 2 edition reflect the current code cycle requirements. Temporary power is a daily reality on construction sites and getting the current requirements right is both a code compliance and a safety necessity. The 2023 changes to temporary power requirements are covered with illustrations of compliant configurations under the current code. My temporary power installations reflect the current code because this guide covered the current requirements clearly. Having the current requirements in an accessible format has kept my construction site installations compliant.

Good continuation of Vol 1 2023 with solid current-cycle coverage of the advanced NEC articles. Three stars because the quality is slightly inconsistent between chapters — the wiring methods and energy storage chapters are excellent while some special occupancy chapters feel rushed. The core current-cycle content is strong and accurate throughout even where depth is thinner. Good advanced current-cycle resource with variable chapter depth.

The optical fiber and communication cable requirements in this 2023 Vol 2 edition reflect the current code cycle installation requirements. As structured cabling and fiber optic systems become standard in commercial construction, the current requirements for their installation are increasingly important. The 2023 changes to communication cable requirements are covered accurately. My fiber and communication cable installations reflect the current code because this guide covered the current requirements clearly. Having the current requirements for these increasingly prevalent systems in an accessible format has kept my communication installations compliant.

Really comprehensive 2023 Vol 2 with excellent wiring methods coverage and strong equipment installation chapters, all reflecting the current code cycle. The illustrations throughout are as good as any in the series. Giving four rather than five stars because a few of the more specialized special occupancy chapters feel less fully developed than the core content. The current-cycle wiring methods and equipment content is five stars. Overall the most current advanced NEC guide available for the 2023 cycle.

The fire alarm system requirements in this 2023 Vol 2 edition reflect the current code cycle circuit classification, wiring method, and power source requirements. Fire alarm installation is increasingly a standard part of commercial electrical work and getting the current requirements right is both a code compliance and a life-safety necessity. The 2023 changes to fire alarm requirements are covered with the practical depth that the safety-critical nature of the work demands. My fire alarm installations reflect the current code because this guide covered the current requirements thoroughly and accurately.

Solid 2023 Vol 2 reference with accurate current content and good illustrations. The wiring methods and equipment installation chapters reflect the current code well. Four stars because cross-referencing between the Vol 1 and Vol 2 2023 editions could be more explicit — when Vol 2 covers equipment installation that references Vol 1 calculation content, a direct cross-reference would make the current-cycle set more useful as an integrated whole. Good guide with that note.

I purchased both 2023 volumes as a set and together they give me complete current-cycle coverage of the NEC in an illustrated, accessible format. The Vol 2 2023 edition provides the advanced content — wiring methods, equipment installation, special occupancies, communication systems — that builds on the foundational Vol 1 content. Having the current code cycle reflected in both volumes means my entire NEC reference library is current, which for exam preparation and daily code compliance is a significant advantage over reference materials that reflect an older cycle. The set is the most current illustrated NEC library available.

The current content is accurate but the industrial chapters are too abbreviated for electricians who work primarily in industrial environments. The 2023 industrial changes need significantly more development to serve industrial electricians as a primary current-cycle reference. Better as a commercial electrician's current-cycle reference than as an industrial electrical guide.

The 2023 Vol 2 edition made my transition to the new code cycle thorough for the advanced content that Vol 2 covers. Rather than trying to identify what changed in the advanced articles from scattered sources, I had a single comprehensive guide presenting the current advanced code as an integrated whole with the changes clearly reflected. That thoroughness — understanding the entire current advanced code from a single current guide — produced more complete current-cycle knowledge than a piecemeal approach would have. For the specialized content that Vol 2 covers, having it all current in a single accessible reference is a significant advantage.

The outdoor recreation facilities and parks electrical chapter in the 2023 Vol 2 edition reflects the current code cycle requirements for athletic fields, outdoor amphitheaters, RV hookups, and swimming facilities. These installation contexts come up more frequently in commercial electrical work than the limited coverage in most NEC guides suggests. The 2023 requirements for each facility type are covered accurately with illustrations. My outdoor recreation facility installations reflect the current code because this guide covered the current requirements clearly in a specialized area.

The switchgear and switchboard installation chapter in the 2023 Vol 2 edition reflects the current working space, dedicated equipment space, and installation requirements. The 2023 code cycle refined several of these requirements and this edition covers the current requirements with illustrations of compliant installations. My commercial switchgear and switchboard installations reflect the current code because this guide made the current requirements clear and accessible. Getting these installations right under the current code is a professional necessity and this guide provides the current reference that makes consistent compliance achievable.

Really good advanced 2023 NEC reference that covers the current-cycle content distinguishing master-level from journeyman-level knowledge. The healthcare facility chapter is the most thorough current-cycle treatment I have found. Four stars because the EV charging and energy storage sections, while current, do not go as deep as electricians specializing in those rapidly evolving technologies would want. Good general coverage of the current-cycle requirements for those emerging areas.

The 2023 Vol 2 edition's treatment of electric vehicle charging equipment reflects the current code cycle branch circuit, GFCI protection, disconnecting means, and load management system requirements. EV charging is a rapidly growing installation category and the current requirements are covered thoroughly. My EV charging installations reflect the current code because this guide covered the current requirements clearly in an area where many electricians are still learning the current-cycle requirements. Having the current EV charging requirements clearly presented has kept my charging installations compliant.

Decent 2023 Vol 2 with accurate current content and useful illustrations. For electricians building their advanced current-cycle code knowledge this is a good resource. Three stars because for genuinely complex industrial applications — large industrial control systems, complex hazardous location installations, industrial power distribution — the depth is introductory rather than comprehensive even for the current cycle. Useful for general commercial current-cycle work and as an introduction to advanced topics.

The current content is accurate but the industrial chapters are too abbreviated for electricians who work primarily in industrial environments. The 2023 industrial changes need significantly more development to serve industrial electricians as a primary current-cycle reference. Better as a commercial electrician's current-cycle reference than as an industrial electrical guide.

The welding equipment electrical installation chapter in the 2023 Vol 2 edition reflects the current code cycle receptacle rating, duty cycle, and disconnecting means requirements for welding equipment. Welding equipment electrical work appears in manufacturing and fabrication facility work and is specialized enough that most electricians encounter it infrequently. The 2023 requirements are covered accurately and having a current reference for them when the work arises is exactly what this chapter provides. My welding equipment installations reflect the current code because this guide covered the current requirements clearly.

The communication systems chapters in this 2023 Vol 2 edition — covering structured cabling, fiber optic systems, network-powered broadband, fire alarm systems, and emergency communication systems — reflect the 2023 code cycle updates to those requirements. Communication systems are increasingly standard in commercial construction and the current requirements for them are often unknown to electricians whose training focused on power systems. This guide fills that knowledge gap with the current 2023 requirements. My communication system installations reflect the current code because this guide covered the current requirements clearly.

I own a small electrical contracting company and both 2023 volumes are on the bookshelf in my office and in every service truck my electricians drive. Vol 2 2023 is the one my licensed electricians reach for most frequently because the advanced content it covers comes up on every commercial project we run. The investment in both current-cycle volumes for my entire field crew has paid for itself in reduced rework and faster current-code compliance verification. Having the whole team working from the current code has kept our advanced installations compliant.

The current content is accurate but the industrial chapters are too abbreviated for electricians who work primarily in industrial environments. The 2023 industrial changes need significantly more development to serve industrial electricians as a primary current-cycle reference. Better as a commercial electrician's current-cycle reference than as an industrial electrical guide.