Add your training video on Division 26 plan reading or electrical estimating here.

• Review load calculations and identify panel and circuiting specs in Division 26.
• Check for fixture types, counts, and mounting methods in lighting schedules.
• Be sure to locate transformer requirements, grounding specs, and special systems calls.
• Coordinate closely with Division 27 and 28 for low-voltage and life safety systems.
• Many electrical specs require submittals, samples, and testing procedures — don’t miss them.

1. Where can you find breaker and panel requirements in the specs?
   Answer: In the load calculations, riser diagrams, and panelboard schedules within Division 26.
2. What details should be confirmed in a lighting fixture schedule?
   Answer: Fixture type, voltage, lamp info, and mounting method (surface, pendant, grid, etc.).
3. Why are transformers and grounding systems important?
   Answer: They impact layout, power quality, and safety — specs will often define impedance, location, and bonding methods.
4. What should you cross-check in Divisions 27 and 28?
   Answer: Any low-voltage rough-in, device power, or system crossover to avoid missing or duplicating scope.
5. What type of testing is often required under Division 26?
   Answer: Megger insulation tests, continuity checks, load testing, and lighting controls commissioning.

Division 26: Electrical Systems

🔹 Key Teaching Points

1️⃣ Load Calculations & Panel Schedules

• Review service load calculations and confirm panelboards, circuits, and feeders match the electrical riser.
• Specs may include fault current ratings, breaker types, and short-circuit coordination requirements.

2️⃣ Lighting Fixtures & Mounting

• Lighting schedules list fixture types, lamp data, voltage, and mounting type (ceiling grid, surface, pendant).
• Check for alternate fixtures or owner-furnished items listed in Division 01 or the drawings.

3️⃣ Transformers, Grounding & Special Systems

• Specs often detail transformer type, location, and impedance rating — these affect layout and coordination.
• Grounding and bonding methods, lightning protection, and power conditioning are typically listed here.

4️⃣ Coordination with Low Voltage Divisions

• Electrical specs may reference Division 27 (Communications) and Division 28 (Life Safety/Security).
• Clearly identify what Division 26 includes — especially rough-in, power, and equipment support.

5️⃣ Submittals, Samples & Testing

• Division 26 often includes detailed procedures for product data, shop drawings, mockups, and electrical testing.
• Include time and cost for megger testing, system verification, and lighting controls programming.

✅ Wrap-Up Summary

• Division 26 covers all major power, lighting, and grounding systems — read carefully for scope overlaps and testing needs.
• Coordinate with Division 27 and 28 to avoid duplicated or missed low-voltage scope.
• Be prepared for extensive submittal and quality control requirements that affect closeout.