forked from jappel/leistungsbilanz-ts
49488f4e1b
Per-circuit cross-section recommendation as a separate module attached to the circuit list. It never writes project data itself: "Übernehmen" applies cable type, cross-section and length through the regular circuit.update command, so revisions and Undo/Redo stay intact. - Pure domain module (src/cable-sizing) with IEC 60364-5-52:2009 Annex B tables for PVC and XLPE, copper and aluminium, methods A1, A2, B1, B2, C, D1, D2 and E. Every value was cross-checked against public reproductions; where sources differ the lower value is used (docs/cable-sizing-module.md). - Temperature and grouping between table values round to the safer value; values outside the tables return no result instead of a factor of 1. Ground methods use B.52.18 (D2) and B.52.19 A (D1). - Overload protection: circuit-breakers In <= Iz; gG fuses additionally I2 <= 1.45 Iz with I2 = 1.6/1.9/2.1 In. - Inputs prefilled from the circuit: power, phase (group or device rows), project voltage, power-weighted cos phi, length and protective device. - Opened from a "Leitungsberechnung" button in the row actions, not from a grid cell, so cable cells keep the spreadsheet behavior. - Stateless API under /api/cable-sizing; no database table or migration. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
37 lines
1.1 KiB
TypeScript
37 lines
1.1 KiB
TypeScript
// Thin fetch client for the cable-sizing module, kept separate from
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// ../utils/api.ts so the module stays self-contained (see
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// docs/cable-sizing-module.md).
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import type {
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CableSizingAlert,
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CableSizingInput,
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CableSizingResult,
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} from "../../cable-sizing/domain/cable-sizing-calculation";
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export interface CalculateCableSizingResponse {
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result: CableSizingResult;
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alerts: CableSizingAlert[];
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}
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export async function calculateCableSizing(
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input: CableSizingInput
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): Promise<CalculateCableSizingResponse> {
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const response = await fetch("/api/cable-sizing/calculate", {
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method: "POST",
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headers: { "Content-Type": "application/json" },
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body: JSON.stringify(input),
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cache: "no-store",
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});
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if (!response.ok) {
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let details = await response.text();
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try {
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const parsed = JSON.parse(details) as { error?: unknown };
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if (typeof parsed.error === "string") {
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details = parsed.error;
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}
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} catch {
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// keep raw text
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}
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throw new Error(details || `Anfrage fehlgeschlagen (Status ${response.status})`);
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}
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return response.json() as Promise<CalculateCableSizingResponse>;
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}
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