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electricalwith-tool

Switchboard Fault Arcflash Earthing Package

Calculates deterministic SSC-05 switchboard safety metrics from a task-owned synthetic source pack. The template combines source fault current, switchboard duty, protection clearing time, incident energy, touch voltage, busbar force, and an overall synthetic pass score.

with-tool: The model is given an executable Python calculator script.

Standards

ETAP-style short-circuit workflowEasyPower arc-flash workflowSKM PowerTools coordination workflowearthing-grid review workflow

Tags

arc-flashbusbardeterministicearthingelectricalfault-currentswitchboard

How this task is generated

One template produces many comparable benchmark tasks while keeping the scoring contract fixed.

  1. 01

    Template

    The reusable contract shown on this page.

  2. 02

    Scenario

    An archetype and site context are sampled.

  3. 03

    Difficulty tier

    Inputs may be hidden at harder tiers.

  4. 04

    Task prompt

    The model responds with the declared outputs.

Parameters

Inputs the model receives, and the outputs it is scored on.

Inputs

14 inputs

Always given

Included directly in every task prompt.

14
Show 14 inputs

  • Utility fault

    utility_fault_mva

    FAULT-05-STUDY-03 upstream utility fault level

    25 MVA

  • Switchboard voltage

    switchboard_voltage_v

    SLD-05-SWBD-03 switchboard voltage

    415 V

  • Transformer contribution

    transformer_contribution_ka

    FAULT-05-STUDY-03 transformer fault contribution

    8 kA

  • Motor contribution

    motor_contribution_ka

    FAULT-05-STUDY-03 motor contribution

    2.3 kA

  • Switchboard fault rating

    switchboard_fault_rating_ka

    SLD-05-SWBD-03 switchboard short-circuit rating

    50 kA

  • Arcing current factor

    arcing_current_factor

    RELAY-05-SET-03 arcing-current factor for the synthetic incident-energy check

    0.82

  • Clearing time

    clearing_time_s

    RELAY-05-SET-03 protection clearing time

    0.12 s

  • Incident energy factor

    incident_energy_factor

    NOTE-05-SAFETY-03 synthetic incident-energy proportional factor

    0.4

  • Working distance

    working_distance_m

    LAYOUT-05-SWBD-03 working distance

    0.6 m

  • Allowable incident energy

    allowable_incident_energy_cal_cm2

    NOTE-05-SAFETY-03 allowable incident energy for the package check

    8 cal/cm2

  • Earth grid resistance

    earth_grid_resistance_ohm

    EARTH-05-SOIL-03 earth-grid resistance

    0.01 ohm

  • Touch voltage limit

    touch_voltage_limit_v

    EARTH-05-SOIL-03 touch-voltage limit for the synthetic check

    500 V

  • Busbar force factor

    busbar_force_factor

    LAYOUT-05-SWBD-03 synthetic busbar force factor

    0.002

  • Busbar force rating

    busbar_force_rating_kn

    LAYOUT-05-SWBD-03 busbar bracing rating

    10 kN

Scored outputs

10 outputs

Utility fault current ka

utility_fault_current_ka

Utility fault current at the switchboard

Scores if within ±3% of the reference value.

Total fault current ka

total_fault_current_ka

Total fault current including transformer and motor contributions

Scores if within ±3% of the reference value.

Fault rating margin ka

fault_rating_margin_ka

Switchboard fault rating minus total fault current

Scores if within ±3% of the reference value.

Incident energy cal cm2

incident_energy_cal_cm2

Synthetic incident-energy value

Scores if within ±3% of the reference value.

Incident energy margin cal cm2

incident_energy_margin_cal_cm2

Allowable incident energy minus calculated incident energy

Scores if within ±3% of the reference value.

Touch voltage

touch_voltage_v

Touch voltage from total fault current and grid resistance

Scores if within ±3% of the reference value.

Touch voltage margin

touch_voltage_margin_v

Touch-voltage limit minus calculated touch voltage

Scores if within ±3% of the reference value.

Busbar force kn

busbar_force_kn

Synthetic busbar force from total fault current

Scores if within ±3% of the reference value.

Busbar force margin kn

busbar_force_margin_kn

Busbar force rating minus calculated force

Scores if within ±3% of the reference value.

Overall pass score

overall_pass_score

1.0 when fault, incident-energy, touch-voltage, and busbar margins are non-negative

Scores if within ±0.1% of the reference value.

Difficulty

Each template is sampled at three tiers. Harder tiers may hide inputs, forcing the model to infer them from the scenario description.

All inputs remain visible at every tier

For this template, difficulty scales through parameter and scenario ranges rather than hidden information.

easy:
All source-pack values given for the SSC-05 switchboard fault package
medium:
All source-pack values given for the SSC-05 switchboard fault package
hard:
All source-pack values given for the SSC-05 switchboard fault package

Task bundle

The exact instruction and parameter contract used to generate this task, pinned to the published library source.

/workspace

  • instruction.md
  • switchboard-fault-arcflash-earthing-package_calc.py

Teal lines show Jinja input conditions, not task visibility policy. A line renders only when that input or tool is visible.

1You are an electrical design engineer checking `SSC-05-LH-03`, a task-owned synthetic SSC-05 switchboard fault, arc-flash, and earthing package.2 3Use only the task-owned synthetic source pack values below for numeric grading. ETAP, EasyPower, SKM PowerTools, arc-flash, and earthing workflows shape the context only; this instance does not run those tools or parse a real SLD, relay curve, fault-study export, or earthing model.4 5## Scene6 7- Design case: `CASE-SSC05-SWBD-03`8- Single-line diagram: `SLD-05-SWBD-03`9- Fault study table: `FAULT-05-STUDY-03`10- Relay/protection setting sheet: `RELAY-05-SET-03`11- Soil and earthing record: `EARTH-05-SOIL-03`12- Switchboard layout: `LAYOUT-05-SWBD-03`13- Safety note: `NOTE-05-SAFETY-03`14 15## Source Values16 17| Item | Value |18|------|-------|19| Utility fault level | {{ utility_fault_mva }} MVA |20| Switchboard voltage | {{ switchboard_voltage_v }} V |21| Transformer contribution | {{ transformer_contribution_ka }} kA |22| Motor contribution | {{ motor_contribution_ka }} kA |23| Switchboard fault rating | {{ switchboard_fault_rating_ka }} kA |24| Arcing-current factor | {{ arcing_current_factor }} |25| Clearing time | {{ clearing_time_s }} s |26| Incident-energy factor | {{ incident_energy_factor }} |27| Working distance | {{ working_distance_m }} m |28| Allowable incident energy | {{ allowable_incident_energy_cal_cm2 }} cal/cm2 |29| Earth-grid resistance | {{ earth_grid_resistance_ohm }} ohm |30| Touch-voltage limit | {{ touch_voltage_limit_v }} V |31| Busbar force factor | {{ busbar_force_factor }} |32| Busbar force rating | {{ busbar_force_rating_kn }} kN |33 34Checks:35 36- Utility fault current equals `utility_fault_mva x 1000 / (sqrt(3) x switchboard_voltage_v)`.37- Total fault current adds utility, transformer, and motor contributions.38- Incident energy equals `total_fault_current_ka x arcing_current_factor x clearing_time_s x incident_energy_factor / working_distance_m^2`.39- Touch voltage equals `total_fault_current_ka x 1000 x earth_grid_resistance_ohm`.40- Busbar force equals `busbar_force_factor x total_fault_current_ka^2`.41- Overall pass score is `1.0` only when fault-rating, incident-energy, touch-voltage, and busbar-force margins are non-negative; otherwise it is `0.0`.42 43## Output Format44 45Write a compact memo to `/workspace/output.md`. Preserve the object IDs above, state the task-owned synthetic source-pack boundary, and explain whether the baseline source pack passes the docs-only checks.46 47Do not claim authority approval, accepted project evidence, software export validity, full standards compliance, executable real source-pack parsing, generated ETAP/EasyPower/SKM evidence, generated benchmark readiness, or benchmark readiness.48 49Include a fenced JSON block with exactly these numeric keys:50 51```json52{53 "utility_fault_current_ka": <numeric_value>,54 "total_fault_current_ka": <numeric_value>,55 "fault_rating_margin_ka": <numeric_value>,56 "incident_energy_cal_cm2": <numeric_value>,57 "incident_energy_margin_cal_cm2": <numeric_value>,58 "touch_voltage_v": <numeric_value>,59 "touch_voltage_margin_v": <numeric_value>,60 "busbar_force_kn": <numeric_value>,61 "busbar_force_margin_kn": <numeric_value>,62 "overall_pass_score": <numeric_value>63}64```65

Scenario archetypes

Each generated task is drawn from one of these realistic scenario bands.

Site contexts ground each scenario in a real locale the model can use to infer hidden values.

Ssc05 switchboard fault case

ssc05_switchboard_fault_case

Switchboard fault and safety package tied to one SLD, fault study, relay sheet, earthing note, and safety memo

switchboard-fault-arcflash-earthing
Parameter ranges
utility_fault_mva
25
switchboard_voltage_v
415
transformer_contribution_ka
8
motor_contribution_ka
2.3
switchboard_fault_rating_ka
50
arcing_current_factor
0.82
clearing_time_s
0.12
incident_energy_factor
0.4
working_distance_m
0.6
allowable_incident_energy_cal_cm2
8
earth_grid_resistance_ohm
0.01
touch_voltage_limit_v
500
busbar_force_factor
0.002
busbar_force_rating_kn
10

Example task

switchboard-fault-arcflash-earthing-ssc05-switchboard-fault-case-preview — hard difficulty, all inputs given.

Switchboard fault and safety package tied to one SLD, fault study, relay sheet, earthing note, and safety memo. switchboard-fault-arcflash-earthing. Required outputs: utility_fault_current_ka, total_fault_current_ka, fault_rating_margin_ka, incident_energy_cal_cm2, incident_energy_margin_cal_cm2, touch_voltage_v

The model sees

Scenario context and visible inputs.

utility_fault_mva
25 to 25 MVA
switchboard_voltage_v
415 to 415 V
transformer_contribution_ka
8 to 8 kA
motor_contribution_ka
2.3 to 2.3 kA
switchboard_fault_rating_ka
50 to 50 kA
arcing_current_factor
0.82 to 0.82
clearing_time_s
0.12 to 0.12 s
incident_energy_factor
0.4 to 0.4
working_distance_m
0.6 to 0.6 m
allowable_incident_energy_cal_cm2
8 to 8 cal/cm2
earth_grid_resistance_ohm
0.01 to 0.01 ohm
touch_voltage_limit_v
500 to 500 V
busbar_force_factor
0.002 to 0.002
busbar_force_rating_kn
10 to 10 kN

Executable tool: switchboard-fault-arcflash-earthing-package_calc.py

The model must infer

Inputs withheld at this difficulty.

Nothing. All inputs are supplied.

The model must produce

The scored JSON answer schema.

{
  "utility_fault_current_ka": <number>,
  "total_fault_current_ka": <number>,
  "fault_rating_margin_ka": <number>,
  "incident_energy_cal_cm2": <number>,
  "incident_energy_margin_cal_cm2": <number>,
  "touch_voltage_v": <number>,
  "touch_voltage_margin_v": <number>,
  "busbar_force_kn": <number>,
  "busbar_force_margin_kn": <number>,
  "overall_pass_score": <number>
}
  • utility_fault_current_ka · scored within ±3%
  • total_fault_current_ka · scored within ±3%
  • fault_rating_margin_ka · scored within ±3%
  • incident_energy_cal_cm2 · scored within ±3%
  • incident_energy_margin_cal_cm2 · scored within ±3%
  • touch_voltage_v · scored within ±3%
  • touch_voltage_margin_v · scored within ±3%
  • busbar_force_kn · scored within ±3%
  • busbar_force_margin_kn · scored within ±3%
  • overall_pass_score · scored within ±0.1%