High voltage direct current (HVDC) substation audible noise Ingestion-build-52208 details of the methods used

details of the methods used should be presented with the results

provided the heater/cooler has a dedicated fan or fans

The method is also applicable to white (bleached or optically brightened) textiles

by means of the similitude theory

High voltage direct current (HVDC) substation audible noise Ingestion-build-52208 details of the methods used1 Scope 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.