All-or-nothing electrical relays - Tests and Measurements - Part 7-50: Momentary drop in supply voltage (IEC 94/581/CD:2021); Text in German and English

All-or-nothing electrical relays - Tests and Measurements - Part 7-51: Reset behavior at coil voltage drop (IEC 94/564/CD:2021); Text in German and English

All-or-nothing electrical relays - Tests and Measurements - Part 7-52: Coil overvoltage (IEC 94/580/CD:2021); Text in German and English

All-or-nothing electrical relays - Tests and Measurements - Part 7-53: Slow decrease and increase of supply voltage (IEC 94/565/CD:2021); Text in German and English

All-or-nothing electrical relays - Tests and Measurements - Part 7-54: Critical DC load current test (IEC 94/566/CD:2021); Text in German and English

Energy management system application program interface (EMS-API) - Part 302: Common information model (CIM) dynamics (IEC 57/2429/CDV:2021); English version prEN IEC 61970-302:2021

Uninterruptible power systems (UPS) - Part 1: Safety requirements (IEC 22H/278/CD:2021); Text in German and English

Test equipment, techniques and procedures for electrical energy meters - Part 3: Automatic Meter Testing System (AMTS) (IEC 13/1849/CD:2021); Text in German and English

Determination of RF field strength, power density and SAR in the vicinity of radiocommunication base stations for the purpose of evaluating human exposure (106/550/CDV:2021); prEN IEC 62232:2021

High-voltage switchgear and controlgear - Part 214: Internal arc classification for metal-enclosed pole-mounted switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV (IEC 17C/829/CD:2021); Text in German and English