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Affichage de 433 - 444 de 10687
Avis d'intention

Systèmes d'alimentation sans coupure

1 General Replace this clause of the RD with the following: 1.1.1 Equipment covered by this Standard This Standard applies to UNINTERRUPTIBLE POWER SYSTEMS (UPS). The primary function of the UPS for this Standard is to ensure...
Avis d'intention

Systems of Insulating Materials – General

These requirements cover test procedures to be used in the evaluation of Class 120(E) or higher electrical insulation systems where the thermal factor is the dominating aging factor. These requirements also cover the...
Avis d'intention

Technologies de l'information - Architecture ...

This part of ISO/IEC 14543 defines the mandatory and optional requirements for the mediumspecific Physical and Data Link Layers of radio frequency for network based control of HES Class 1 products and systems. It describes a...

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