Sun Safe LLC • R&D Documents
Patent pending • verification and reference documents
Verify Sun Safe
Sun Safe LLC — Vermont LLC
- Record No. 489840
- Filing No. 20260414278634
- Filed and effective Apr 12, 2026
- Member: Casey C. Schuyler
Verify: Vermont Secretary of State business search → search “Sun Safe LLC”.
U.S. Provisional Application 64/026,462
- Filed Apr 2, 2026
- Inventor and applicant: Casey Cole Schuyler
- Foreign filing license granted Jun 5, 2026
- Micro entity
Provisional applications aren’t published or searchable at the USPTO. The filing receipt is below; confirmation through patent counsel on request.
Casey Schuyler
Founder, Sun Safe LLC · LinkedIn
- NABCEP PV Associate: PVA-072326-018525
- NABCEP O&M Associate Technician: OMAT-072426-013577
- Ran and recorded all seven Phase 1 trials (Aug 29 and Oct 22, 2026) · Trial records
Verify: NABCEP Professional Directory → search by name. Certificates: Contact page.
Independent witness
Mark Foote
EMS Coordinator / Fire Captain, Killington Fire & Rescue · LinkedIn
Witnessed the Oct 22, 2026 Phase 1 field testing on site, entered readings and signed each trial log:
Background, The Mountain Times, May 24, 2023: “Killington Fire and Rescue hires two” · “Mark Foote becomes Killington’s first full-time paid firefighter”.
Documents
USPTO provisional filing receipt (page 1 of 3)
Application 64/026,462, filed Apr 2, 2026, mailed Jun 8, 2026.
Vermont Articles of Organization — Sun Safe LLC
Filed Apr 12, 2026 (11 V.S.A. § 4023), record 489840.
Irradiance threshold justification (OD 2.3 / 2.5)
Beer-Lambert transmission vs. 7 W/m² and 125 mA across documented peak irradiance. Rev. B, Oct 21, 2026: test-module Isc 8.71 A (nameplate), cited sources, 125 mA as a measurement-noise gate.
The Lineman’s Gap / The PV Gap
How the lineman’s rubber gloves went from a practical field fix to a standard every maker builds to, and why the new light-blocking products for PV, each tested its own way, now need the same. Updated Oct 24, 2026, with Phase 1 results, design levels and 15 linked sources.
Phase 1 trial records (PDF, one per trial)
The completed log for each published trial: Side 1 raw data, Side 2 results, signatures and photo record, as generated by the v29 log. Open to view or print; Download to save. Current is the BT270 clamp reading with the sheet on.
Phase 1 field test plan, V18
Protocol, instruments, trial sequence by log box (with the photo record), Side 2 analysis, threshold derivations, results for all seven trials, recorded deviations, OD from both meter pairs, scaling to any monofacial module, levels met and sourced references. Monofacial modules only. V18, Oct 24, 2026.
Reference study
Firefighter Safety and Photovoltaic Installations Research Project
Backstrom & Dini, Underwriters Laboratories, Nov 29, 2011 (DHS Fire Prevention and Safety grant).
| §9.1 cover, 1 layer | Voc | Isc | UL’s call |
|---|---|---|---|
| 4 mil black plastic | 33 V | 0 A | Safe |
| Blue all-purpose tarp | 126 V | 2.1 A | Electrocution |
| Canvas salvage tarp | 3.2 V | 0 A | Safe |
| Red vinyl salvage tarp | 124 V | 1.8 A | Electrocution |
| Full sun (4 × 230 W) | 148 V | 8.1 A |
Shock reference: current and voltage thresholds
DC current through the body, as UL 2011 classifies its results (PDF p. 23). A source cannot push more current through a person than its short-circuit current.
Below perception
Felt; startle can cause a fall
Muscle lock-on, breathing can stop
Heart can stop
2–11 mA 40 mA
NFPA 70E UL tarps 1.8–2.1 A
full sun 8.1 A
| Voltage / current threshold | Value | Source |
|---|---|---|
| DC shock hazard (PV) | 100 V and 40 mA | NFPA 70E 2027 First Draft, FR-102, proposed 390.2(2) (draft text) |
| Rapid shutdown, outside the array boundary | ≤ 30 V within 30 s | NEC 2017–2023 690.12(B)(1); 30 V chosen as touch-safe in wet conditions per (Brooks & Rogers, IAEI 2015) |
| Rapid shutdown, inside the array boundary | ≤ 80 V within 30 s, or a listed hazard control system | NEC 2017–2023 690.12(B)(2) |
| Sun Safe Stage 1 (S1) gate | < 125 mA | Measurement-noise gate (meter floor) — not a shock limit |
Values are for reference only and do not replace an NFPA 70E shock risk assessment or PPE.
Field log
Phase 1 field trial log (v29)
The working log used to record Phase 1 test data on site, with automatic Side 2 results. For Sun Safe use; the published trials are in the trial records above.