Glossary

uhľovodík

Uhľovodík je organická zlúčenina zložená len z uhlíka a vodíka. Rozdelenie Tradične sa uhľovodíky delia do skupín podľa druhu väzieb medzi atómami alebo podľa toho, či ich základný uhlíkový reťazec je otvorený…

Underfloor heating

Underfloor heating is a type of heating in which heat is transferred directly to the floor of the room, creating an even and pleasant heating. It is a modern and efficient way of heating that offers several advantages compared to other forms of…

Usb

USB in its initial abbreviation means "Universal Serial Bus". It is one of the oldest computer interfaces still used today. In the past, USB was known as a port in computers, but today it can be found on practically any piece of electronics. From…

Ústredné kúrenie

  Central heating or central heating is a heating system in which the heat for heating several rooms or several houses is produced in one place and supplied to individual rooms with a heat carrier (water, steam, air). Hot water heating…

UV lamp

A UV lamp is a device that generates ultraviolet (UV) radiation. This type of radiation is outside of visible light and is characterized by a shorter wavelength than visible light. UV lamps are used for a variety of purposes in a variety of…

UV žiarenie

Ultrafialové žiarenie (iné názvy: ultrafialová radiácia, ultrafialové lúče, ultrafialové svetlo, UV(-)žiarenie/radiácia/lúče/svetlo, žiarenie/radiácia/lúče/svetlo UV; ako vlnenie: ultrafialové vlnenie/vlny, UV vlnenie/vlny; ako časť…

úžitková voda

Úžitková voda, je voda ktorá sa vyrába vždy z pitnej vody a to buď len ohrevom (teplá voda), pričom pre teplú vodu neplatia žiadne limity nezávadnosti a kvality ako je to pri pitnej vode.  Norma STN 83 0616 definuje teplú vodu ako vodu…