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NB/T 31057-2025 PDF English

NB/T 31057: Evolution and historical versions

Std ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status
NB/T 31057-2025	English	RFQ	ASK	3 days [Need to translate]	(Technical Specifications for Overvoltage Protection in Wind Power Farm Collection Systems)	Valid
NB/T 31057-2014	English	499	Add to Cart	4 days [Need to translate]	Technical specification of overvoltage protection of power collection system for wind farm	Valid

Standard ID	NB/T 31057-2025 (NB/T31057-2025)
Description (Translated English)	(Technical Specifications for Overvoltage Protection in Wind Power Farm Collection Systems)
Sector / Industry	Energy Industry Standard (Recommended)
Classification of Chinese Standard	F11
Classification of International Standard	27.18
Date of Issue	2025-09-28
Date of Implementation	2026-03-28
Older Standard (superseded by this standard)	NB/T 31057-2014
Issuing agency(ies)	National Energy Administration