Railway applications. Acoustics. Measurement of noise inside railbound vehicles1 Scope This European Standard specifies the conditions for obtaining reproducible and comparable measurement results of levels and spectra of noise inside all kinds of vehicles on rails or other types of fixed track, hereinafter conventionally called train, except for track maintenance vehicles in operation. This standard is applicable for: type testing; periodic monitoring testing. The results may be used, for example: to characterise the noise

Functionally they are regarded as not containing relay valves of any type

Surface treatment indication that is not unique to glassware deleted

BS ISO 11711-1:2019 clarifies issues encountered with the BS ISO 117111:2013 and provides additional information:

— the system for training

BS EN 50615 takes into account the requirements of the HD 384 Series as far as possible so that there is compatibility with the wiring rules when the device is connected to the supply mains

calibration procedure

The application of this document is intended to be included in the supplier quality management system

Electric cable in electronic systems is a conductor or group of conductors for transmitting electric power or telecommunication signals from one place to another

techniques used to protect systems against these environments are summarised

electrical safety tests

Reference buffer solutions manufacturers

BS EN 50288-1 covers cables for instrumentation