⚡ Hospital Ground Loop Hazard Simulator

Visualizing electrical safety risks from unequal ground potentials in the patient environment

IEC 60601 · NFPA 99
HOSPITAL PATIENT ROOM — ELECTRICAL GROUND LOOP ANALYSIS ─── BUILDING GROUND BUS (EARTH REFERENCE) ───
🎯 Quick Scenarios
🏥 Patient Category
Macroshock thresholds (IEC 60479):
 1 mA perception · 10 mA let-go threshold
 100 mA ventricular fibrillation · 1 A burns
⚡ Ground Loop Current Through Patient
SAFECAUTIONWARNDANGERFATAL
0.000 µA
✓ SAFE — No hazardous ground loop detected
📋 Wire Color Guide
⬛ Power cable🟢 Ground wire 🟠 Patient lead🔴 Loop current 🟡 Chassis voltage🔵 Electrode
Circuit: Vchassis = IL·Rg → ΔV drives Ipatient
Ip = ΔV / R_patient = — (enable ≥2 devices)
NFPA 99: Rg <0.1Ω · IEC 60601 CF: Ileak <10µA