Bell wire
Under bell wire or bell wire is meant thin, mostly massive and twisted power lines for safety extra low voltage , with a plastic coating are isolated. In accordance with the type abbreviations of lines , bell wire is also called Y-wire .
Uses
Bell wire is laid as a signal line between the signal transmitter (e.g. a button ) and the signal receiver (e.g. a bell ). The cable can be routed on the wall surface (surface-mounted installation), in the plaster layer (plastered installation) or under the plaster layer (concealed installation) in the masonry . To better protect the line, the bell wire can be laid in a conduit. The wires are identified by different colors. For example, telephone lines are often used as bell wires for large installation work in a new building , as there are many individual lines or wire pairs that are color-coded in different ways in a cable .
literature
- Winfrid Hauke, Rolf Thaele, Günter Reck: RWE Energie Bau-Handbuch. 12th edition, Energie-Verlag GmbH, Heidelberg 1998, ISBN 3-87200-700-9 .