IEC TS 62966-3 pdf – Mechanical structures for electrical and electronic equipment – Aisle containment for it cabinets – Part 3: Aspects of operational and personal safety
1Scope
This part of lEC 62966 defines the requirements for operational and personal safety of aislecontainments for lT cabinets.
The aim is to provide physical security for the lT equipment installed in the containment usingthe criteria “availabilityT and “safety.
The requirements apply to all operational, working and maintenance procedures.
This document does not apply to ordinary persons, when using installations and equipment.
The requirements described herein are also intended to ensure that it is possible forauthorized personnel to enter and remain in the containment (as accessible equipment) andto maintain or upgrade the systems installed in the containment without risk. lt should also be
possible to evacuate the containment quickly and safely at any time, especially in the event of
a fire or any other hazardous situation，whilst reducing the health risk to personnel to aminimum.
Aspects relating to computing,data processing，data storage,building protection or the datacentre itself do not fall within the scope of this document. Only those additional aspectsarising from the integration of an aisle containment are considered.
The design and positioning of an aisle containment, which is integrated in the data centre, hasinfluence on the following different aspects of operational safety:
a) escape and evacuation plans;
b) escape routes;
c) emergency exits;
d)functional aspects of escape doors;e) lighting conditions
f)lighting and signposting of escape routes;g) fire protection.
In this document, these operational safety requirements and recommendations areconsidered.
To achieve the highest effectiveness, all these requirements are considered as much aspossible during the design of an aisle containment.
This document applies to normal operations, not to the initial installation of the containment.
2Normative references
The following documents are referred to in the text in such a way that some or all of theircontent constitutes requirements of this document. For dated references,only the editioncited applies. For undated references, the latest edition of the referenced document(inciuding
any amendments) applies.
IEC 60695-11-10，Fire hazard testing – Part 11-10:Test flames – 50 W horizontal and verticalflame test methods
Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and lEC maintain terminological databases for use in standardization at the followingaddresses:
·IEC Electropedia: available at http://www.electropedia.orgl
ISO Online browsing platform: available athttp:J/www.iso.orglobp
3.1
escape route
intended route to a place of safety
3.2
emergency exit
exit which is part of an escape route and leads directly to the outside or to a safe area
3.3
escape and evacuation plan
straightforward and comprehensible document that provides information relating to escaperoutes and fire fighting equipment
3.4
escape door
every door in an escape route is an escape door
3.5
hold time
time during which a concentration of fire extinguishant shall be maintained at an effectivelevel within the space being protected. The predicted hold time shall be determined by thedoor fan test or a full discharge test.
3.6
extinguishing gas
electricallynon-conducting gaseous extinguishing agent,that,upon evaporation,does notleave a residue