Elettrotecnica / PV (NEC & NABCEP):
P = V × I · V = I × R · Voc_max = Voc × N × K_temp

Recipienti a Pressione (ASME VIII / API 510):
t = (P × R) / (S × E - 0.6 × P) · Corrosion Rate = (t_prev - t_curr) / Δyears

Gru & Rigging (NCCCO / OSHA 1926):
Sling Tension = (Load / N_legs) × (L / H) · D/d ratio