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IEC 61557-5:2019 ED3

Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitoring of protective measures - Part 5: Resistance to earth
26. 7. 2019.

Опште информације

60.60     26. 7. 2019.

IEC

TC 85

Međunarodni standard

17.220.20     29.080.01     29.240.01  

engleski  

Kupovina

Objavljen

Jezik na kome želite da primite dokument.

Apstrakt

IEC 61557-5:2019 specifies the requirements applicable to measuring equipment for measuring the resistance to earth using an AC voltage. IEC 61557-5:2019 cancels and replaces the second edition published in 2007. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) definitions and symbols in Clause 3 modified;
b) subclauses in Clause 4 restructured and aligned with other parts of the series;
c) limits for reduced voltages 25 V RMS or 35 V peak removed from 4.5;
d) requirements for clamps added;
e) marking for rated voltages to earth and measurement category added to Clause 5;
f) warning about absence of hazardous voltage added in Clause 5;
g) the term "percentage operating uncertainty" replaced by "operating uncertainty" in Clause 6;
h) equation for uncertainty corrected in Table 1;
i) new Annex A on test measurements with loop clamps added.

Životni ciklus

PRETHODNO

POVUČEN
IEC 61557-5:2007 ED2

TRENUTNO

OBJAVLJEN
IEC 61557-5:2019 ED3
60.60 Standard objavljen
26. 7. 2019.

Nacionalna preuzimanja

Električna bezbednost u niskonaponskim distributivnim mrežama naizmeničnog napona do 1 000 V i jednosmernog napona do 1 500 V – Oprema za ispitivanje, merenje ili praćenje zaštitnih mera – Deo 5: Otpornost uzemljenja

60.60   Standard objavljen