Infoteenus
27 ELEKTRI- JA SOOJUSENERGEETIKA
Uued standardid
ISO 19967-2:2024
Air to water heat pumps — Testing and rating for performance — Part 2: Space heating and/or space cooling
Käsitlusala:
This document specifies test conditions and test procedures for determining the performance characteristics of air to water heat pumps for space heating and/or space cooling with electrically driven compressors with or without supplementary heater. The purpose of this document is to rate the performance of the air to water heat pumps for space heating and/or space cooling.
In the case of air to water heat pumps for space heating and/or space cooling consisting of several parts with refrigerant or water connections, this document applies only to those designed and supplied as a complete package. This document does not apply to large chiller or large liquid chilling package for space cooling and/or heating.
This document does not apply to air to water heat pumps not intended for human comfort.
NOTE Testing procedures for simultaneous operation for hot water supply and space heating and/or space cooling are not treated in this document. Simultaneous means that hot water supply and space heating and/or space cooling generation occur at the same time and can interact.
In the case of air to water heat pumps for space heating and/or space cooling consisting of several parts with refrigerant or water connections, this document applies only to those designed and supplied as a complete package. This document does not apply to large chiller or large liquid chilling package for space cooling and/or heating.
This document does not apply to air to water heat pumps not intended for human comfort.
NOTE Testing procedures for simultaneous operation for hot water supply and space heating and/or space cooling are not treated in this document. Simultaneous means that hot water supply and space heating and/or space cooling generation occur at the same time and can interact.
Alusdokumendid:
Asendab:
ISO 19967-2:2019
ISO 20816-2:2017/Amd 1:2024
Mechanical vibration — Measurement and evaluation of machine vibration — Part 2: Land-based gas turbines, steam turbines and generators in excess of 40 MW, with fluid-film bearings and rated speeds of 1 500 r/min, 1 800 r/min, 3 000 r/min and 3 600 r/min — Amendment 1
Käsitlusala:
Amendment to ISO 20816-2:2017
Alusdokumendid:
Asendatud standardid
ISO 19967-2:2019
Heat pump water heaters -- Testing and rating for performance -- Part 2: Heat pump water heaters for space heating
Käsitlusala:
This document specifies test conditions and test procedures for determining the performance characteristics of air source heat pump water heaters for space heating with electrically driven compressors with or without supplementary heater. The purpose of this document is to rate the performance of the heat pump water heaters for space heating with no operation of any supplementary heater. In the case of heat pump water heaters for space heating consisting of several parts with refrigerant or water connections, this document applies only to those designed and supplied as a complete package.
NOTE Testing procedures for simultaneous operation for hot water supply and space heating are not treated in this document. Simultaneous means that hot water supply and space heating generation occur at the same time and can interact.
NOTE Testing procedures for simultaneous operation for hot water supply and space heating are not treated in this document. Simultaneous means that hot water supply and space heating generation occur at the same time and can interact.
Alusdokumendid:
Asendatud:
ISO 19967-2:2024
EVS-EN ISO 18846:2016
Solid biofuels - Determination of fines content in quantities of pellets (ISO 18846:2016)
Käsitlusala:
ISO 18846:2016 specifies a method for determining the amount of material passing through a sieve with 3,15 mm diameter round hole.
Alusdokumendid:
ISO 18846:2016; EN ISO 18846:2016
IEC TS 62600-1:2020
Marine energy - Wave, tidal and other water current converters - Part 1: Vocabulary
Käsitlusala:
IEC TS 62600-1:2020 defines the terms relevant to ocean and marine renewable energy. For the purposes of this Technical Specification, sources of ocean and marine renewable energy are taken to include wave, tidal current, and other water current energy converters. This Technical Specification is intended to provide uniform terminology to facilitate communication between organizations and individuals in the marine renewable energy industry and those who interact with them.
This second edition cancels and replaces the first edition published in 2011, and its Amendment 1, published in 2019. This edition includes the following significant technical changes from the previous edition:
- Approximately 45 % of the original terms which were either not in use, used only in a glossary sense, or which are commonly understood and found in other references were removed.
- Thirteen (13) terms considered more general than tidal were moved up from IEC TS 62600-200 and added.
- Eight (8) terms that were added in Amendment 1 to IEC TS 62600-1 were incorporated alphabetically.
- Six (6) additional new terms were added.
This second edition cancels and replaces the first edition published in 2011, and its Amendment 1, published in 2019. This edition includes the following significant technical changes from the previous edition:
- Approximately 45 % of the original terms which were either not in use, used only in a glossary sense, or which are commonly understood and found in other references were removed.
- Thirteen (13) terms considered more general than tidal were moved up from IEC TS 62600-200 and added.
- Eight (8) terms that were added in Amendment 1 to IEC TS 62600-1 were incorporated alphabetically.
- Six (6) additional new terms were added.
Alusdokumendid:
Kavandid
prEN IEC 63445:2024
System referencing conductor switching device
Käsitlusala:
This standard applies to a system referencing conductor switching devices (SRCSD) for household and similar uses within a Prosumer’s Electrical Installations (PEI).The SRCSD provides functions as described in clause 82.8.2.2.4 of IEC 60364-8-82 Ed1.
PEI intended for operating either being connected to a distribution network or being disconnected from the distribution network is an islandable PEI.
Intentional disconnection from and connection to the distribution network relies on the local earthing system being switched by the SRCSD. In addition, unintentional loss of distribution network is covered.
The SRCSD is a single pole device intended to connect one live conductor of the power system to an earthing arrangement.
In general the neutral conductor is earthed.
Switching the SRCSD can change the local type of system earthing, if types of system earthing are different in island and grid connected modes.
The system referencing conductor switching device (SRCSD) is interlocked with the switching device for islanding (SDFI) of a Prosumer electrical installation.
SRCSD can be integrated in a device with other function e. g. with a SDFI.
NOTE 1. see also IEC 60364-8-82 ED1.
This standard applies to SRCSD for rated voltages not exceeding 440 V AC with rated frequencies of 50 Hz, 60 Hz or 50/60 Hz.
NOTE 2. SRCSD for DC operations is under consideration.
The requirements of this document apply for standard environmental conditions. They are applicable to SRCSD intended for use in an environment with pollution degree 2 and overvoltage categories III according to IEC 60664-1:2020. SRCSD have at least a degree of
protection IP 20 according to IEC 60529. Additional requirements can be necessary for devices used in locations having more severe environmental conditions.
PEI intended for operating either being connected to a distribution network or being disconnected from the distribution network is an islandable PEI.
Intentional disconnection from and connection to the distribution network relies on the local earthing system being switched by the SRCSD. In addition, unintentional loss of distribution network is covered.
The SRCSD is a single pole device intended to connect one live conductor of the power system to an earthing arrangement.
In general the neutral conductor is earthed.
Switching the SRCSD can change the local type of system earthing, if types of system earthing are different in island and grid connected modes.
The system referencing conductor switching device (SRCSD) is interlocked with the switching device for islanding (SDFI) of a Prosumer electrical installation.
SRCSD can be integrated in a device with other function e. g. with a SDFI.
NOTE 1. see also IEC 60364-8-82 ED1.
This standard applies to SRCSD for rated voltages not exceeding 440 V AC with rated frequencies of 50 Hz, 60 Hz or 50/60 Hz.
NOTE 2. SRCSD for DC operations is under consideration.
The requirements of this document apply for standard environmental conditions. They are applicable to SRCSD intended for use in an environment with pollution degree 2 and overvoltage categories III according to IEC 60664-1:2020. SRCSD have at least a degree of
protection IP 20 according to IEC 60529. Additional requirements can be necessary for devices used in locations having more severe environmental conditions.
Alusdokumendid:
23K/98/CDV; prEN IEC 63445:2024