Information technology - Data centre facilities and infrastructures - Part 1: General concepts
This document:
a) describes the general principles for data centres upon which the requirements of the ISO/IEC22237 series are based;
b) defines the common aspects of data centres including terminology, parameters and reference models (functional elements and their accommodation) addressing both the size and complexity of their intended purpose;
c) describes general aspects of the facilities and…
Information technology - Data centre facilities and infrastructures - Part 3: Power distribution
This document addresses power supplies to, and power distribution within, data centres based upon the criteria and classifications for “availability”, “physical security” and “energy efficiency enablement” within ISO/IEC 22237‑1.
This document specifies requirements and recommendations for the following:
a) power supplies to data centres;
b) power distribution systems to all equipment within data…
Static VAR compensators (SVC) - Testing of thyristor valves
IEC 61954:2021 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition.
IEC 61954:2021 defines type, production and optional tests on thyristor valves used in thyristor controlled reactors (…
Fibre optic interconnecting devices and passive components - Performance standard - Part 131-03: Sin...
IEC 61753-131-03:2021 contains the minimum tests, test severities and measurement requirements which a mechanical fibre splice need to satisfy in order to be categorised as meeting the requirements of single-mode fibre splice for use in category OP (Outdoor protected) environments, as defined in IEC 61753-1. This document for mechanical splices defines the requirements for standard optical…
High-voltage switchgear and controlgear - Part 1: Common specifications for alternating current swit...
IEC 62271-1:2017+A1:2021 applies to AC switchgear and controlgear designed for indoor and/or outdoor installation and for operation at service frequencies up to and including 60 Hz and having rated voltages above 1 000 V.
This document applies to all high-voltage switchgear and controlgear except as otherwise specified in the relevant IEC standards for the particular type of switchgear and…
General requirements for lighting systems - Safety
IEC TS 63117:2021(E) specifies the safety requirements of lighting systems at the system level, applicable when designing a lighting system.
A lighting system comprises a set of products. Safety requirements of the products are not covered in this document, but specified in product safety standards.
NOTE For emergency lighting systems, national or regional regulations provide relevant…
IEC TS 63116:2021(E) specifies general requirements for design, installation and maintenance of a lighting system.
A lighting system comprises a set of products. Requirements of the products are specified in product standards. For the general requirements of lighting systems, this document prevails.
Construction of lighting systems can vary in applications. This document is not intended to…
Adjustable speed electrical power drive systems — Part 5-2: Safety requirements — Functional Entraîn...
1 Scope
This part of IEC 61800, which is a product standard, specifies requirements and makes
recommendations for the design and development, integration and validation of safety related
power drive systems (PDS(SR)) in terms of their functional safety considerations. It applies to
adjustable speed electrical power drive systems covered by the other parts of the IEC 61800
series of standards…
1 Scope
1.1
This Standard specifies requirements for deformed and plain round steel bars for concrete reinforcement that can be furnished in cut lengths or in coils.
1.2
Two Types of bars are covered by this Standard:
a)
Type R — Intended for general applications. The R designation is used for specifying, ordering, and communication only, and is not rolled onto the deformed bar.
b)
Type W…
1 Scope
1.1
The CSA O80 Series of Standards specifies requirements related to the preservation and fire retardance of wood through chemical treatment (pressure and thermal impregnation). The subjects covered include materials and their analysis, pressure and thermal impregnation procedures, and fabrication and installation to put treated wood into service.
1.2
This Standard lists reference…
