loganwest123
Member
- Location
- Central NC
- Occupation
- Electrical Engineering
Good morning everyone,
Over the past few years, I’ve found myself keeping the same 15-20 tabs open or PDFs saved for quick reference during design and field verification. I figured I’d share my current "digital belt" — it would be great to see what the rest of you are using so we can build out a solid resource list for the younger guys or anyone doing coordination studies. Feel free to drop a thread reply.
Calculators & Design Tools
If you have a go-to link or a specific PDF you keep on your phone, drop it below.
Thank you, & I look forward to seeing the tools y'all use.
Over the past few years, I’ve found myself keeping the same 15-20 tabs open or PDFs saved for quick reference during design and field verification. I figured I’d share my current "digital belt" — it would be great to see what the rest of you are using so we can build out a solid resource list for the younger guys or anyone doing coordination studies. Feel free to drop a thread reply.
Calculators & Design Tools
- Eaton Fuse Selector: Solid for sizing and cross-referencing; saves a lot of time on fuse spec work.
- SKM / ETAP: Obviously the industry standards for Arc Flash and Coordination, but I still find myself double-checking results against the manual TCC overlays.
- Ugly’s Electrical References: Still the gold standard. I keep the app on my phone, but physical copy is usually what ends up on the job site.
- Cooper Bussmann SPD Selection: Their online tool for surge protection spec work is surprisingly deep and often overlooked.
- Eaton / Cutler-Hammer Product Catalogs: If you’re specifying Magnum DS, SBS, or SPB series, their selection guides are mandatory for getting the catalog strings right.
- VoytenManuals.com: I stumbled on this recently—it’s a massive, free library of electrical part manuals and spec sheets. It’s been a lifesaver for tracking down documentation on obsolete or legacy gear (Westinghouse, ITE, etc.) when the modern OEM has buried the archives.
- Manufacturer Technical Bulletins: I’ve found the application notes from ABB and Square D are more useful than the spec sheets for complex installs
- SEL Overcurrent Element Calculator: Extremely handy for relay setting verification in the field.
- NETA MTS-2023: For anyone doing maintenance testing, this is the Bible for pass/fail criteria.
- NFPA 70E Table 130.5(G): I keep a laminated "cheat sheet" for PPE categories in the truck—faster than flipping through the code book when you're geared up.
- NEC 310.16 Ampacity: I still think that its faster to look at a laminated table than to use an app.
- Voltage Drop, Motor FLA: NEC 430.248 / 430.250, Conduit Fill
If you have a go-to link or a specific PDF you keep on your phone, drop it below.
Thank you, & I look forward to seeing the tools y'all use.
