IFC 4.3.2.20240809 (IFC4X3_ADD2) under development

BreakerUnitIPICurve

Semantic definition

A curve that establishes the let through peak current of a breaker unit when a particular prospective current is applied. Note that the breaker unit IPI curve is defined within a Cartesian coordinate system and this fact must be asserted within the property set:

(1) Defining value: A list of minimum 2 and maximum 16 numbers providing the currents in [A] for points in the I/Î log/log coordinate space. The curve is drawn as a straight line between two consecutive points. (2) Defined value: A list of minimum 2 and maximum 16 numbers providing the let-through peak currents, Î, in [A] for points in the I/Î log/log coordinate space. The curve is drawn as a straight line between two consecutive points.

Referenced in
Pset_ProtectiveDeviceBreakerUnitIPICurve
Table A

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