What is BS EN IEC 60584-3 about?
BS EN IEC 60584-3 is necessary for thermocouple temperature measurement that the electro-motive force (abbreviated as EMF hereafter) of the thermocouple circuit is precisely measured by a measuring instrument. A thermocouple is electrically connected to the instrument by a proper pair of electric cables.
BS EN IEC 60584-3 specifies identification and manufacturing tolerances for extension and compensating cables (mineral insulated extension and compensating cables are not included) provided directly to users of industrial processes.
The requirements for extension and compensating cables for use in industrial process control is specified in BS EN IEC 60584-3.
Extension and compensating cables may consist of a single strand (solid) wire or multistranded wire for which BS EN IEC 60584-3 is applied.
Who is BS EN IEC 60584-3 for?
BS EN IEC 60584-3 on extension and compensation cables for thermocouples is relevant to:
- Manufacturers of thermocouple wires
- Electronic and electric engineers
- Industries such as power generation, mining, oil/gas, pharmaceutical, biotech, cement, paper, and glass where mechanical cables and extensions are used
Why should you use BS EN IEC 60584-3?
A thermocouple is a device for measuring temperature. It comprises two similar metallic wires joined together to form a junction. When the junction is heated or cooled, a small voltage is generated in the electrical circuit of the thermocouple which can be measured, and this corresponds to temperature.
BS EN IEC 60584-3 covers the tolerance classes for extension and compensating cables when used at temperatures within the ranges provided. As a result, the corresponding measuring junction temperature can be implied.
The relevant colour coding standards in BS EN 60584-3 also help in easy identification of insulation of negative and positive conductor, based on the thermocouple type.
Compliance to BS EN IEC 60584-3 ensures high accuracy in temperature reading, given the appropriate dimensions and tolerances of extension and compensating cables that carry signals to the sensor.
What’s changed since the last update?
BS EN IEC 60584-3: 2021 supersedes BS EN 60584‑3:2008, which is withdrawn
