{
  "task": "Draft hospital essential supply single-line distribution schematic",
  "domain": "CAD",
  "application": "AutoCAD",
  "description": "Draft a single-line distribution schematic for a hospital essential electrical supply on one sheet. Use inch units, not to scale. No dimensions or hatching are needed.\n\nAt the top, draw a horizontal 11 kV overhead feeder line that ends in a large arrowhead at the left, labelled \"UTILITY 11KV\". Draw two vertical transformer branches off this line. Each branch has:\n- a lightning arrester labelled \"LA\";\n- a drop-out fuse drawn as two arcs, labelled \"3P 100A\";\n- a transformer drawn as two circles, each containing a triangle;\n- an outgoing Q0 breaker drawn with circle contacts and a diagonal blade.\n\nThe left branch is labelled \"TR-1 1250KVA 3 433V\" and \"Q0 160A\". It feeds board \"EMDB-01\", marked \"EXISTING\", with \"ACB INCOMER 3P 630A\". Its horizontal busbar has four feeders:\n- F1 160A, OT DB 4CX25MM2\n- F2 160A, ICU DB 4CX70MM2\n- F3 200A, LIFE SAFETY 4CX50MM2\n- F4 63A, UPS INPUT 4CX95MM2\n\nThe right branch is labelled \"TR-2 1250KVA 3 433V\" and \"Q0500A\". It feeds \"LDB-02\", marked \"NEW INSTALLATION\", with \"ACB INCOMER 3P 400A\". Its busbar has seven feeders:\n- F1 32A, OT DB 4CX25MM2\n- F2 100A, ICU DB 4CX70MM2\n- F3 250A, LIFE SAFETY 4CX50MM2\n- F4 125A, UPS INPUT 4CX95MM2\n- F5 100A, HVAC DB 4CX25MM2\n- F6 63A, LIFT DB 4CX70MM2\n- F7 63A, SPARE 4CX25MM2\n\nEach feeder has a breaker with circle contacts and ends in a triangular arrow. Each feeder carries its rating and its cable label as listed above.\n\nAdd a METERING element with a \"V5\" box and an ammeter \"A\". Add a rectangular box labelled \"APFC/CAP BANK\" and \"12 STEP 100KVA\". Connect it to the LDB-02 busbar and place capacitor symbols inside it. Draw a PE bar line under each board. Insert a title block border.\n\nCAD standards (all objects ByLayer colour, linetype and lineweight; nothing on layer 0):\n- E-ONEL (ACI 7, Continuous, 0.35 mm): all schematic lines, circles and arcs.\n- E-ONEL-SYMB (ACI 4, Continuous, 0.25 mm): symbol blocks. Use block LIGHTNING-ARRESTER for both arresters (2 references) and block CAPACITOR-STEP for the capacitor symbols (2 references).\n- E-ANNO-TEXT (ACI 3, Continuous, 0.25 mm): all labels, as MTEXT.\n- E-ANNO-TTLB (ACI 7, Continuous, 0.25 mm): title block references NO_NUM_acade_title and WD_M, one each.",
  "input_files": [
    "task_files/diagrams/diagram_01.pdf",
    "task_files/diagrams/diagram_01.png",
    "task_files/diagrams/diagram_01_detail01.png",
    "task_files/diagrams/diagram_01_detail02.png",
    "task_files/diagrams/diagram_01_detail03.png",
    "task_files/diagrams/diagram_01_detail04.png",
    "task_files/diagrams/diagram_01_detail05.png",
    "task_files/diagrams/diagram_01_detail06.png"
  ],
  "deliverables": [
    {
      "path": "output_files/project_files/ELECTRICAL_SUPPLY.dwg",
      "type": "native_project_or_dependency",
      "format": ".dwg",
      "description": "A single-sheet single-line schematic of the hospital essential supply with the 11 kV feeder, two transformer branches, EMDB-01 (4 feeders) and LDB-02 (7 feeders), metering, the APFC bank and a title block, on the E-ONEL/E-ANNO layer scheme."
    },
    {
      "path": "output_files/project_files/ELECTRICAL_SUPPLY.dxf",
      "type": "native_project_or_dependency",
      "format": ".dxf",
      "description": "DXF export of the model in the same units."
    }
  ]
}