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Fault Current IEC 60909-0
Standards Inputs Declaration engineer-declared · no defaults
Declared by
Declared on
Edition
Voltage factor c — per nominal system voltage · IEC 60909-0:2016 Table 1
One declaration per nominal voltage in the chain. Required, empty by design — the engine computes nothing until each band's cmax and cmin are declared with their clause.
Minimum-case conductor temperature θe
θ_e
°C
Clause
Temperature coefficient α — per material, base-explicit
Material
α
1/K
θ_base
°C
Clause
Thermal-equivalent factors m · n — optional; undeclared means Ith is not computed
m
m clause
n
n clause
K_T (recorded, not applied)
K_T clause
Scope radial · far from generator
Far-from-generator attestation
Frequency
Hz
Topology is a single radial chain fed by parallel sources at one node — a mesh is unrepresentable here, not approximated.
Source parallel infeeds at the source node
Network chain source node → fault, in order
A result row is emitted at every element boundary; the terminal fault is at the last element. Ratings are optional per node — an unrated node is reported, never graded.
Analysis awaiting declarations
IEC 60909-0
Document Audit-ready sheet
Notes
  1. Every standards value on this document is engineer-declared with its clause — the instrument holds none of them.
  2. Maximum duty sizes the equipment; minimum duty is the number a protective device must still see at the far end of the run.
  3. Printed currents are symmetrical RMS with no decrement applied; each X/R is labelled by its own loop.
References
  • — awaiting declarations —
— · Rev A · — Export PDF A professional aid, not engineering judgement — you remain responsible for verifying every input and result against the standards that apply to your work.
AmpacitiesELECTRICAL ENGINEERING PLATFORM
ELECTRICAL CALCULATION SHEET
DOC AMP-FC · REV A
STATUS — DRAFT

Fault Current
IEC 60909-0 Short-Circuit Study

IEC 60909-0:2016
equivalent voltage source method
radial · far from generator
2.0

Standards Inputs Declaration

engineer-declared
Voltage factor c_max / c_min, per nominal system voltageREQUIRED — not yet declared
Minimum-case conductor temperature θ_eREQUIRED — not yet declared
Temperature coefficient α with its base θ_baserequired where a θ_ref element exists — not yet declared
Thermal-equivalent factors m · noptional — undeclared: I_th is not computed
Transformer impedance correction K_Trecorded if declared · not applied in v1
This instrument holds no value originating in the text of IEC 60909-0. Every such quantity is declared above, with its clause, edition and declarer, before anything is computed.
7.0

Scope Boundary & Explicit Exclusions

read before relying on any figure
Declarations incomplete — no figures issued