Preview — in active development. The fault current and arc flash calculators run in production today as part of the underground agent’s tool catalog, but they aren’t exposed as a standalone HTTP service yet. We’re extracting them as fault-current-api in an upcoming release. Want early access? Email hello@epcstudio.io.

The fault current service runs cable fault withstand against ICEA limits, concentric neutral adequacy, and IEEE 1584 arc flash incident energy. Same engine the underground agent uses today.

What it will do

  • ICEA cable fault withstand — verify a conductor survives the available fault current for the protective device clearing time
  • Concentric neutral duty — adequacy check for the cable’s concentric neutral under expected fault duty
  • IEEE 1584 arc flash — incident energy calculation, working-distance boundaries, PPE category lookup

Planned shape

# preview — actual endpoint shape may shift before launch
curl https://$VERTICAL_AI_BASE_URL/withstand \
  -H "Authorization: Bearer $VERTICAL_AI_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "conductor": { "size": "500_kcmil", "material": "copper", "insulation": "EPR" },
    "fault_current_ka": 18,
    "clearing_time_cycles": 10
  }'

Until it ships

You can call the same calculations today through the Underground gateway → by asking the agent for a fault-current or arc-flash check.

See also