PD IEC TS 63236-2:2021 PDF

1   Scope This part of lEC 63236, which is a Technical Specification, applies to DC appliance couplers for class I equipment with two active contacts plus an earthing contact, a rated power of 5,2 kW and a rated voltage range from 294 V to 400 V DC. They are intended to power DC information and communication technology equipment only, as specified in IEC 62368‑1. The accessories according to this document are intended to be used by ordinary persons in data centres only where the value of the DC voltage distribution system is defined as follows:

•  380 V with a tolerance of ±20 V for installations with no backup battery or with a voltage regulation system;

•  380 V with a voltage range of 294 V to 400 V for installations with a backup battery where voltage regulation is not guaranteed;

•  the voltage value between each live conductor and earth does not exceed 200 V DC during normal operation;

•  there are two abnormal voltage ranges (duration below 10 min):

–  260 V up to 294 V, and

–  above 400 V to 410 V. ...