Building intercom systems - System requirements. Building intercom systems using the internet protocol (IP) Ingestion-build-156411 Thermal energy meters are instruments

Thermal energy meters are instruments intended for measuring the energy in a heat-exchange circuit

The compression stress/strain characteristic is a measure of the load-bearing properties of the material

in ISO 9809‑1

Petrochemical firms

Building intercom systems - System requirements. Building intercom systems using the internet protocol (IP) Ingestion-build-156411 Thermal energy meters are instruments1 Scope This part of IEC 62820 specifies the technical requirements for the composition, functions, performance and test methods of building intercom systems using the internet protocol (IP), and it is a supplement to IEC 6282011. This document is applicable to the IP building intercom systems for both residential and commercial buildings. NOTE A BIS that has a mixture of IP and non IP connections is not covered by IEC 6282012 but covered by IEC