Property

Accuracy Class

Code

AccuracyClass

URI

https://identifier.buildingsmart.org/uri/buildingsmart/ifc/4.3/prop/AccuracyClass

Definition

A designation assigned to an instrument transformer the current (or voltage) error and phase displacement of which remain within specified limits under prescribed conditions of use (IEC 321-01-24).

Description

Technical note: in IFC this property takes 'IfcRatioMeasure' as value. Such objects are not included in bSDD for simplicity reason. IFC also doesn't enforce particular units, but recommends using metric SI units (metre, kilogram, etc.). Read the IFC documentation for more information.

Dictionary

IFC

Dictionary version

4.3

Dictionary license

CC BY-ND 4.0

DataType

Real

IsDynamic

False

PropertyValueKind

Single

Status

Active

VersionDateUtc

2024-01-12

Classes

A device that reads and displays the current flow in a circuit.

A device that reads and displays the value of multiple properties of a system at a point, or displays the difference in the value of a property between two points.

Instrument transformers are high accuracy class electrical devices used to isolate or transform voltage or current levels. The main function of instrument transformers is to operate instruments or metering from high voltage or high current circuits, safely isolating secondary control circuitry from the high voltages or currents. Combination instrument transformers are metering current.

Instrument transformers are high accuracy class electrical devices used to isolate or transform voltage or current levels. The main function of instrument transformers is to operate instruments or metering from high voltage or high current circuits, safely isolating secondary control circuitry from the high voltages or currents. Combination instrument transformers are metering voltage.

A device that measures and displays the voltage in a circuit.