This technical specification applies to the specification and evaluation of outdoor audible noise from high voltage direct current (HVDC) substations. It is intended to be primarily for the use of the utilities and consultants who are responsible for issuing technical specifications for new HVDC projects with and evaluating designs proposed by prospective contractors. It is primarily intended for HVDC projects with line-commutated converters. Part of this technical specification can also be used for the same purpose for HVDC projects using voltage sourced converters, and for flexible a.c. transmission systems (FACTS) devices such as static Var compensators (SVCs) and static synchronous compensators (STATCOMs).

Cross References:
ISO 3743-2:2018
ISO 3744
ISO 8297
ISO 3746
IEC 61672-2
ISO 9613-2
ISO 9614-2
IEC 60076-10-1
ISO 3745
ISO 9614-1
ISO 9613-1
IEC 61672-1
IEC 60076-10
ISO 3740
ISO 1996-2:2017
ISO 266:1997
IEEE Std C57.136:2000
IEEE Std 1127:1998
IEEE C37.082:1982
ANSI S1.11: 2004
CIGRE Report 14.26


Incorporates the following:
Amendment, May 2019