Skip to the beginning of the images gallery

Quick Formula Guide Based on the 2026 National Electrical Code NEC

Be the first to review this product

was $6.95 Special Price $6.25

Availability:

In stock

Product Code

9798880800209

Details

Your Pocket-Sized NEC 2026 Powerhouse

Stop flipping through pages. This dense, 8-page guide puts the 15 most critical NEC 2026 tables and formulas right in your pocket. With an ultra-portable 4.3" x 5.5" size, it fits anywhere—your tool belt, glove box, or back pocket.

Get instant access to essential data like conductor ampacity, motor full-load currents, grounding conductor sizing, and voltage drop calculations. It’s the fastest, most convenient reference an electrician can carry.

10 Indispensable Tables: Based directly on the NEC 2026, including must-know references like:

Table 250.66 Grounding Electrode Conductor for ac Systems
Table 250.102(C)(1) Grounded Conductor, Main Bonding Jumper, System Bonding Jumper, and Supply-Side Bonding Jumper for ac Systems
Table 250.122 Minimum Size Equipment Grounding Conductors (EGCs) for Grounding Raceway and Equipment
Table 310.15(B)(1)(1) Ambient Temperature Correction Factors Based on 30°C (86°F)
Table 310.15(C)(1) Adjustment Factors for More Than Three Current-Carrying Conductors
Table 310.16 Ampacities of Insulated Conductors with Not More Than Three Current-Carrying Conductors in Raceway, Cable, or Earth (Directly Buried)
Table 314.16(A) Metal Boxes
Table 314.16(B)(4) Volume Allowance Required per Conductor
Table 430.248 Full-Load Currents in Amperes, Single-Phase ac Motors
Table 430.250 Full-Load Current, Three-Phase ac Motors

Critical Electrical Formulas: Also includes a dedicated section for everyday calculations, featuring:

Power Factor Formulas
Finding Horsepower
Finding Amperes when Horsepower is known
Finding Amperes when Kilowatts is known
How to find Kilovolt-Amperes (kVA)

More Information

More Information
Price	$6.95
Customer Service	We're Here To Help! Call us anytime during our customer service hours... Monday through Friday - 8:30 am to 4:30 pm (Pacific) Saturday - 9am to 1pm (Pacific) Order Questions: TOLL FREE, 800-273-7375 (Outside the U.S. call 818-887-7828). Our Address: 8001 Canoga Avenue Canoga Park, CA 91304 US Phone: 877-951-3112 E-mail: sales@buildersbook.com Fax Your Order 818-887-7990 Print Our Fax Order Form
Description	Your Pocket-Sized NEC 2026 Powerhouse Stop flipping through pages. This dense, 8-page guide puts the 15 most critical NEC 2026 tables and formulas right in your pocket. With an ultra-portable 4.3" x 5.5" size, it fits anywhere—your tool belt, glove box, or back pocket. Get instant access to essential data like conductor ampacity, motor full-load currents, grounding conductor sizing, and voltage drop calculations. It’s the fastest, most convenient reference an electrician can carry. 10 Indispensable Tables: Based directly on the NEC 2026, including must-know references like: Table 250.66 Grounding Electrode Conductor for ac Systems Table 250.102(C)(1) Grounded Conductor, Main Bonding Jumper, System Bonding Jumper, and Supply-Side Bonding Jumper for ac Systems Table 250.122 Minimum Size Equipment Grounding Conductors (EGCs) for Grounding Raceway and Equipment Table 310.15(B)(1)(1) Ambient Temperature Correction Factors Based on 30°C (86°F) Table 310.15(C)(1) Adjustment Factors for More Than Three Current-Carrying Conductors Table 310.16 Ampacities of Insulated Conductors with Not More Than Three Current-Carrying Conductors in Raceway, Cable, or Earth (Directly Buried) Table 314.16(A) Metal Boxes Table 314.16(B)(4) Volume Allowance Required per Conductor Table 430.248 Full-Load Currents in Amperes, Single-Phase ac Motors Table 430.250 Full-Load Current, Three-Phase ac Motors Critical Electrical Formulas: Also includes a dedicated section for everyday calculations, featuring: Power Factor Formulas Finding Horsepower Finding Amperes when Horsepower is known Finding Amperes when Kilowatts is known How to find Kilovolt-Amperes (kVA)