- calculateCableSizing now selects cross-section against
designCurrentA = max(operatingCurrentA, existingProtectionRatedCurrentA)
instead of the load current alone. A breaker only trips at its own rated
current (In), so a cable sized for the actual load could overheat under
sustained current below that threshold - the standard In <= Iz rule.
Voltage-drop calculation still uses the real operating current, only the
capacity check changed. Alerts and the ok-summary now name the breaker as
the limiting factor when it is one.
- Added a manual cable type/cross-section entry in the modal itself:
running a calculation pre-fills these fields as a suggestion, but they
are the single field that actually gets applied, and stay editable -
this restores the direct manual-entry capability the modal replaced when
it took over the cableSummary/cableCrossSection cell click.
- Fixed calculator icon position from a trailing ::after (inconsistent
position depending on cell text length, easy to miss on empty cells) to
a fixed-position ::before, so it is always in the same place regardless
of whether cable data is already filled in.
- No new display for the existing protection device - it already has its
own Schutz column in this app.
Isolated module (mirrors src/external-model/ dependency direction) that
adds an on-demand, DIN VDE 0298-4 referenced cable cross-section
calculator: a click-on-a-circuit input mask for laying method,
insulation, ambient temperature, grouping and voltage-drop limit that
suggests a cross-section for the circuit cableCrossSection/cableLength
fields. Applying a suggestion goes through the existing circuit.update
command (expectedRevision, undo/redo) unchanged - nothing here writes
to circuits directly or touches the revision/command system. See
docs/cable-sizing-module.md for the full rationale, API contract,
verification status and maintenance plan. Proposal, not yet reviewed
by the project owner - see the docs file.
423 existing + 11 new tests pass, build:api/build:web/typecheck:scripts
clean.
