Harting Sbírka katalogů říjen 2013

| Kategorie: Katalog  | Tento dokument chci!

Vydal: HARTING s.r.o. Autor: HARTING

Strana 63 z 808

Vámi hledaný text obsahuje tato stránku dokumentu který není autorem určen k veřejnému šíření.







Poznámky redaktora
Odd objects can act unintentional receiver, causing interference voltage or current. However the energy level usually low. Vice versa, this definition also applies the interference power within the component due external interference sources. This specified [dB] (VG 95214 standard).6. specified logarithmic ratio and such referred the shielding effectiveness ratio.Hoods and Housings 57 • Capacitive coupling: There permanent certain capacity between the cable conductors and the connector housing, because these are adjacent circuits with variable potential difference. • Radiation coupling: Electromagnetic waves emanate from the cable (antenna principle) a result high transmission frequencies and “long” cable runs. This voltage current can superimposed transmission signals. This potential difference may cause electrical current to flow (through the air which insulates them), resulting disturbance capacity. Shielding effectiveness The shielding effectiveness component defined the ratio a power radiated within the component the maximum resulting interference power outside the component the environment. The transfer impedance component screening parameter. 3. (VG 95214 standard) . Transfer impedance The transfer impedance the ratio the induced interference voltage between outer conductor and housings the interference current applied to the screen.4 EMC Properties The screening effect housing can described terms the shielding effectiveness factor and the coupling resistance Rc