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IEC 60255-149:2013 ED1

Measuring relays and protection equipment - Part 149: Functional requirements for thermal electrical relays
30. 7. 2013.

Опште информације

60.60     30. 7. 2013.

IEC

TC 95

Međunarodni standard

29.120.70  

engleski   francuski  

Kupovina

Objavljen

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Apstrakt

IEC 60255-149:2013 specifies minimum requirements for thermal protection relays. This standard includes specification of the protection function, measurement characteristics and test methodologies. The object is to establish a common and reproducible reference for evaluating dependent time relays which protect equipment from thermal damage by measuring a.c. current flowing through the equipment. Complementary input energizing quantities such as ambient, coolant, top oil and winding temperature may be applicable for the thermal protection specification set forth in this standard. This standard covers protection relays based on a thermal model with memory function.

Životni ciklus

PRETHODNO

POVUČEN
IEC 60255-8:1990 ED2

TRENUTNO

OBJAVLJEN
IEC 60255-149:2013 ED1
60.60 Standard objavljen
30. 7. 2013.

Nacionalna preuzimanja

SRPS EN 60255-149:2015  
ISS

Merni releji i zaštitna oprema — Deo 149: Funkcionalni zahtevi za električne termoreleje

60.60   Standard objavljen

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