Title :
A study of impulse noise caused by connecting or disconnecting coaxial cable between equipment
Author :
Kuramoto, Shoichi ; Takemoto, Fusaji ; Hattori, Mitsuo
Author_Institution :
NTT Telecommun. Networks Labs., Tokyo, Japan
Abstract :
This paper describes the characteristics of impulse noise that is generated when a coaxial cable linking pieces of equipment at different ground potentials is connected or disconnected. The potential difference of equipment with a DC power supply system in a telecommunications center is simulated with an experimental model. The measured peak value of the impulse noise current is almost independent of any DC current on the coaxial cable produced by potential differences between the equipment and earth. An analysis model for adopting a SPICE program has been developed and the calculated waveforms agree well with the experimental results. A countermeasure to prevent the impulse noise current is also clarified
Keywords :
cable jointing; coaxial cables; electric current measurement; electric noise measurement; electric potential; electromagnetic interference; telecommunication power supplies; DC power supply system; EMI; SPICE program; analysis model; cable connection; cable disconnection; calculated waveforms; coaxial cable; experimental model; experimental results; ground potentials; impulse noise; impulse noise current; simulation; telecommunication equipment; telecommunications center; Character generation; Coaxial cables; Current measurement; Earth; Joining processes; Noise generators; Noise measurement; Power supplies; Power system modeling; SPICE;
Conference_Titel :
Electromagnetic Compatibility, 1995. Symposium Record., 1995 IEEE International Symposium on
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-3608-9
DOI :
10.1109/ISEMC.1995.523609
