https://voltfield.org/voltfield-insights.html Procurement guides, buying guides, and reference data for energy infrastructure and industrial MRO sourcing, from VOLTFIELD Supply Co. en-us https://voltfield.org/guide-pad-mount-vs-gsu-transformers.html https://voltfield.org/guide-pad-mount-vs-gsu-transformers.html Pad-mount and GSU transformers solve different problems and carry different lead times (85 weeks vs. 144 weeks). How to tell which one your project actually needs. Fri, 24 Jul 2026 00:00:00 GMT https://voltfield.org/glossary.html https://voltfield.org/glossary.html Plain-language definitions for the standards and terms that show up across energy infrastructure and industrial procurement: ANSI C57, API 5CT/6A/7K/16A, NFPA 855, UL 9540A, FEOC, and more. Fri, 24 Jul 2026 00:00:00 GMT https://voltfield.org/lead-time-index.html https://voltfield.org/lead-time-index.html Current indicative lead times and pricing across data center power, renewables, battery storage, and oilfield equipment, compiled from the same data driving the catalog's lead-time flags. Fri, 24 Jul 2026 00:00:00 GMT https://voltfield.org/guide-feoc-compliance.html https://voltfield.org/guide-feoc-compliance.html What FEOC rules mean for solar and storage procurement, what changed with Treasury's safe-harbor guidance, and what documentation buying teams should be gathering now. Fri, 24 Jul 2026 00:00:00 GMT https://voltfield.org/guide-transformer-lead-times.html https://voltfield.org/guide-transformer-lead-times.html What's driving the multi-year power transformer shortage, and practical steps procurement teams can take to protect their project timeline. Fri, 24 Jul 2026 00:00:00 GMT https://voltfield.org/guide-transformer-nameplate.html https://voltfield.org/guide-transformer-nameplate.html What every field on a power or distribution transformer nameplate actually means, and how to use them when specifying or comparing units. Sat, 25 Jul 2026 00:00:00 GMT https://voltfield.org/guide-switchgear-compartments.html https://voltfield.org/guide-switchgear-compartments.html What separates metal-clad from metal-enclosed switchgear, what's inside each compartment of a metal-clad lineup, and why the distinction affects lead time and spec compliance. Sat, 25 Jul 2026 00:00:00 GMT https://voltfield.org/guide-arc-flash-boundary-basics.html https://voltfield.org/guide-arc-flash-boundary-basics.html What an arc-flash boundary is, how it relates to incident energy and NFPA 70E, and what documentation buying teams should expect — not a substitute for a licensed study. Sat, 25 Jul 2026 00:00:00 GMT https://voltfield.org/guide-bess-fire-safety-nfpa-855.html https://voltfield.org/guide-bess-fire-safety-nfpa-855.html What NFPA 855 actually requires for battery energy storage system installations, how UL 9540A large-scale fire testing sets separation distances, and why site layout decisions need to happen before equipment is ordered. Tue, 28 Jul 2026 00:00:00 GMT https://voltfield.org/guide-grounding-bonding-basics.html https://voltfield.org/guide-grounding-bonding-basics.html Grounding and bonding get used interchangeably in conversation but do two different jobs. What each one actually does, why the equipment grounding conductor matters more than the ground rod, and how separately derived systems change the rules. Tue, 28 Jul 2026 00:00:00 GMT https://voltfield.org/guide-short-circuit-studies-breaker-coordination.html https://voltfield.org/guide-short-circuit-studies-breaker-coordination.html What a short-circuit study actually calculates, why a quick infinite-source fault-current estimate isn't a substitute for one, and how breaker coordination decides which device trips first when something goes wrong. Tue, 28 Jul 2026 00:00:00 GMT