Acoustics. Declared noise emission values of information technology and telecommunications equipment Ingestion-build-83346 Section 4: Through-vision and reflex

Section 4: Through-vision and reflex glasses

and designation requirements of T-slots on platens for projection welding machines

The scope of this International Standard is limited to application of power converters of any power rating

3 and Annex A)

The ignition protection is based on the limitation of the maximum surface temperature of the enclosure and on the restriction of dust ingress into the enclosure by the use of “dust-tight” or “dust-protected” enclosures

Acoustics. Declared noise emission values of information technology and telecommunications equipment Ingestion-build-83346 Section 4: Through-vision and reflex1 Scope This document is applicable to information technology and telecommunications equipment. It specifies: a) for a batch of equipment, the method for determining the following values: the declared mean A weighted sound power level, LWA,m; the declared mean A weighted emission sound pressure level, LpA,m; the statistical adder for verification, Kv; the statistical upper limit A weighted sound power level, LWA,c; b) how acoustical and product