At the beginning of January, more than three hundred standards of interstate and national level came into force.
Among them are a series of documents on electromagnetic compatibility, standards for soils, gas boilers, and perfumes and cosmetics.
GOST 34679-2020, Block-signalling cables. General specifications. Cables covered by this document are intended for railway automatics and telemechanics devices; electrical signaling and interlocking installations of general industrial application; as well as for fire alarms and automatics. Their use assumes nominal AC voltage of 380 V at 50 Hz or 700 V DC. According to the type of conductive core design, such cables are subdivided into single-wire and multi-wire. Polyethylene or a halogen-free polymer composition is used for insulation of conductive cores. According to the standard, the core of cables must have a binding winding of synthetic filaments or tapes. There should be no dents, bubbles and cracks on the outer surface of the insulation.