NEC Code for Ground Rods: Requirements, Spacing and Wire Size (2026)
NEC code for ground rods explained: 8 ft depth, the 25 ohm rule, when two rods are needed, GEC wire size, spacing and subpanel rules.
NEC Code for EV Chargers: Article 625 Rules (2026 Guide)
NEC code for EV chargers explained: Article 625 rules, 125% sizing, GFCI, Romex limits, Tesla, California and a free PDF cheat sheet.
NEC Article for Generators: Article 445 and the Backup Power Rules Explained (2026)
NEC article for generators is Article 445, with 700, 701 and 702 for backup power. See clearances, 240.4(B), home rules and a free PDF.
NEC Code for Floor Receptacles: Rules, GFCI & Boxes (2026)
NEC code for floor receptacles explained: 18-inch wall rule, listed floor boxes, meeting room outlets (210.65), GFCI and 2020 to 2026 changes.
Brother PT-H110 vs PT-D210: Which Label Maker to Buy (2026)
Brother PT-H110 vs PT-D210 compared: fonts, frames, size, tape and value. See which P-touch label maker fits your home, office or workshop.
NEC Article for Demand Factors: Article 220 Tables Explained (2026)
NEC article for demand factors is Article 220. See Table 220.42, 220.45, dryer and range factors, a worked example and a free PDF cheat sheet.
Thermal Camera for Solar Panel Hot Spot Inspection: What Actually Works (2026)
Thermal camera for solar panel hot spot inspection: how to read ΔT, the conditions you need, and whether the FLIR ONE Pro is enough.
Circuit Breaker Finder Not Working or Wrong Breaker? Fixes That Work
Circuit breaker finder not working or wrong breaker? Fix Klein ET310 issues, verify the right breaker, test a bad breaker with a multimeter. Engineer’s guide.
Best Multimeter for Electricians Under 200: Fluke 17B+ Review and Buyer’s Guide (2026)
The best multimeter for electricians under 200? My engineer’s review of the Fluke 17B+ vs Fluke 117 and Klein, with prices and where to buy.
Best Wire Stripper for Stranded Wire: Klein 11055 Review & Buying Guide
Looking for the best wire stripper for stranded wire? An electrical engineer’s pick, strip sizes for 6-20 AWG, and why the Klein 11055 stays in my tool bag.
WAGO 221 Mounting Carrier for DIN Rail or Panel: Which One?
WAGO 221 mounting carrier for DIN rail or panel: compare 221-500, 221-510, 221-503 and 221-505, plus the 221-412/413/415 lever-nut kit I trust.
Best WAGO Lever Nuts for 12 AWG Wire: 221-412, 221-413 & 221-415 Guide
Best WAGO lever nuts for 12 AWG wire: 221-412, 221-413 and 221-415 sizes, 12/2 wire use, 20A ratings and where to buy, from an electrical engineer.
NEC Code for Commercial Buildings: Key Rules, GFCI, Romex and Free PDF (2026)
NEC code for commercial buildings explained: services, GFCI, Romex rules, 2020 vs 2026 editions, free NEC access and a free 2-page PDF cheat sheet.
EVIQO NACS 48A EV Charger for Tesla: Engineer’s Review, Price & Install Guide
EVIQO NACS 48A EV charger for Tesla review: specs, price, 60A wiring, manual and install steps from an electrical engineer. Is 48A safe?
Eviqo Hardwired vs Plug In Which Is Better? 40A vs 48A Explained
Eviqo hardwired vs plug in which is better? An electrical engineer compares 40A vs 48A speed, wiring, cost, and safety, plus how many amps you really need.
NEC Code for Clearance in Front of Panels: 110.26 Rules (2026)
NEC code for clearance in front of panels explained: 110.26 working space table, 36 in. residential rule, exceptions, OSHA and a free PDF.
Wolfbox WE48 vs Emporia 48A: Which Hardwired 48A Charger Should You Buy?
Wolfbox WE48 vs Emporia 48A compared by an electrical engineer: specs, wiring, Wi-Fi setup, app features, price, and which 48A charger to buy.
NEC Code for Buried Electrical Wires: Depth Chart & Rules (2026)
NEC code for buried electrical wires explained: burial depth chart, Table 300.5, conduit rules, 12/2 Romex answers and a free PDF cheat sheet.
NEC Code for Closet Lights: 410.16 Rules, Spacing and LED Options (2026)
NEC code for closet lights explained: 410.16 spacing, which fixtures are allowed or banned, and when LED closet lights pass inspection. Updated 2026.
NEC Code for Bathroom Outlets: 2023 GFCI & Placement Rules
NEC code for bathroom outlets explained: 3-ft basin rule, GFCI, 20-amp circuit, height and tub zone limits under the 2020, 2023 and California codes.
NEC Article for Branch Circuits: Article 210 Guide (2026)
The NEC article for branch circuits is Article 210. Learn 210.11, 210.52, ratings, Articles 215, 310, 376, 725 and get a free PDF cheat sheet.
NEC Code for Bonding Bushings: When They Are Required (2026)
NEC code for bonding bushings explained: where 250.92 and 250.97 require them, bonding vs grounding bushings, jumper sizing and a free PDF.
NEC Article for Box Fill: Rules, Table and Formula (2026)
NEC article for box fill explained: Article 314.16 formula, volume allowance table, box volumes, worked example and a free PDF worksheet.
NEC Article 210.8 A Explained: GFCI Rules for 2026
NEC article 210.8 A lists where dwelling units need GFCI protection. See locations, 2020 to 2026 changes, 210.8(C) and (D), and a free PDF.
NEC Article 210.20 A Explained: 125% Continuous Load Rule
NEC Article 210.20 A explained: size breakers at 125% of continuous load. Worked examples, breaker table, free PDF, and Articles 215, 225, 240.
NEC Article 110.26 A: Working Space Clearances Explained (2023 NEC)
NEC Article 110.26 A explained: working space depth, width and height, the three conditions, exceptions, 110.26(B) and free NEC access. Free PDF cheat sheet.
NEC Code for AC Disconnect Height: What 440.14 and 404.8 Require
NEC code for AC disconnect height explained: 6 ft 7 in maximum, 440.14 placement, 2022 and California rules, working space and FAQs.
NEC Code for Arc Fault Breakers: Which Circuits Need AFCI Protection (2017–2026)
NEC code for arc fault breakers explained: which rooms need AFCI, where they are not required, and what changed in the 2017, 2020, 2023 and 2026 NEC.
NEC Code for Stapling Romex: 334.30 Rules, Spacing and Staple Types
The NEC code for stapling Romex: support within 12 in. of boxes and every 4½ ft per 334.30. Get staple counts, flat-cable and conduit rules.
NEC Code for Outlet Orientation: 7 Rules Explained (2026)
NEC code for outlet orientation: the NEC sets no ground-pin rule, but bans face-up countertop outlets, the tub zone, TR rules and 6 ft spacing.
