DL/T 646-1998
Technical specification of manufacturing steel transmission pole structures (English Version)

Standard No.

DL/T 646-1998

Language

Chinese, Available in English version

Release Date

1998

Published By

Professional Standard - Electricity

Status

Be replaced 2006-10

Replace By

DL/T 646-2006

Latest

DL/T 646-2021

DL/T 646-1998 history

• 1970 DL/T 646-2021 Technical conditions for manufacturing steel pipe structures for power transmission and transformation
• 2012 DL/T 646-2012 Manufacturing technical requirements for transmission and substation and steel tubular structures
• 2006 DL/T 646-2006 Manufacturing Technical Requirements for Transmission and Substation Steel Tubular Structures
• 1998 DL/T 646-1998 Technical specification of manufacturing steel transmission pole structures