Izindaba Zemikhiqizo

Izintambo zezinsimbi ezingahambisani nomthetho zibangela ukulahleka kwesiginali, ukwehluleka kwemishini, kanye nezingozi zokuphepha.

Imininingwane yemboni ikhombisa ukuthi ama-80% okufakwa okungalandeli imithetho abhekana nezinkinga zingakapheli izinyanga eziyi-18.

Funda ngemiphumela yangempela yokweqa izimfuneko ze-EN 50288-7, i-IEC 60332, noma ze-NEC - nokuthi kungani ukuthobela imithetho kuvikela isitshalo sakho.

Ukukhetha izintambo zezinsimbi ezinamabhangqa amaningi kudinga ukunquma inani lamabhangqa (1-100+), usayizi womqhubi (18-24 AWG / 0.5-2.5mm²), uhlobo lokuvikela (ifoyili/ukuluka/inhlanganisela), kanye nezinto zejakethi (PVC/LSZH/PUR).

Lo mhlahlandlela uhlanganisa ukuhambisana ne-EN 50288-7 kanye nohlaka lokukhetha isinyathelo ngesinyathelo lwezimpawu ze-analog nezedijithali.

I-EN 50288-7 iyindinganiso yaseYurophu yezintambo zokufaka izinto kanye nokulawula, icacisa amapharamitha kagesi (i-impedance, i-capacitance, i-attenuation), izakhiwo zemishini, ukubambezeleka komlilo, kanye nezilinganiso zokushisa.

Abathengi kumele baqinisekise ukuhambisana nokumaka kwe-CE kanye nemininingwane yephrojekthi.

Funda izidingo ezibalulekile kanye nohlu lokuhlola lokukhetha.

Ukukhetha phakathi kwe-twisted pair (crosstalk reduction), i-coaxial (high-frequency), kanye ne-BS5308 (i-oyili ne-gas spec) kuncike ohlotsheni lwesignali yakho, ibanga, kanye nendawo ezungezile.

Ipheya elisontekile lisebenza kahle kakhulu ku-4-20mA kanye ne-RS485. I-Coaxial yemvamisa ephezulu kanye nevidiyo.

I-BS5308 ingeza ukuvikelwa kwemishini kanye nesilinganiso se-IS sezitshalo ze-petrochemical.

Funda izidingo kanye nezimo ezihlukile.

Izintambo eziphephile ngaphakathi kumele zibe luhlaza okwesibhakabhaka (RAL 5015) ngokwe-IEC 60079-14 ukuze kutholakale indawo eyingozi.

Le khodi yombala ephoqelekile ivumela ochwepheshe bezogesi ukuthi bahlukanise ngokushesha izifunda ze-IS nezintambo zikagesi ezingezona eze-IS, okuvimbela ukuxhumeka kwamandla ayingozi ngengozi.

Funda izidingo kanye nezimo ezihlukile.

Impendulo eqondile ithi: Cha.

Funda izidingo kanye nezimo ezihlukile.

Yebo, ngokwe-IEC 60079-14, izintambo eziphephile ngokwemvelo KUMELE zibe neshelu langaphandle eliluhlaza okwesibhakabhaka (RAL 5015) ukuze kutholakale indawo eyingozi.

Le khodi yombala ephoqelekile ivumela ukubonwa okusheshayo kwezifunda ze-IS, ivimbele ukuxhumeka ngengozi kwamandla angewona awe-IS.

Kukhona okulinganiselwe okuhlukile kumakhebula amancane kakhulu kanye nokufakwa okukhona.

Funda izidingo kanye nezimo ezihlukile.

Ikhebula le-SWA (Steel Wire Armour) eliphephile ngokwalo lihlanganisa ukulinganiselwa kwamandla (IS) nokuvikelwa komshini (insimbi yensimbi yensimbi). Ukumelana nokuchoboza okufika ku-4,000 N/10cm, ukuvikelwa kwamagundane/izilokazane, kanye namandla aphezulu okudonswa ukuze kufakwe izindawo eziyingozi. I-LSZH sheath eluhlaza okwesibhakabhaka igcina ukuhambisana ne-IS ngenkathi ukuvikela kuqinisa ukuqina.

Funda izidingo kanye nezimo ezihlukile.

Ikhebula le-alamu yomlilo eliphephile ngokwemvelo lihlanganisa ukulinganiselwa kwamandla (kuvimbela ukusha) nobuqotho besekethe (ligcina ukusebenza ngesikhathi somlilo).

Kuqinisekiswe ezindaweni eziyingozi (iZone 0/1/2) ngezilinganiso ezifana ne-FE180 (ukusinda emlilweni imizuzu engu-180) kanye ne-LSZH sheathing.

Funda ukuthi izintambo zomlilo ze-IS zibona kanjani imililo ngaphandle kokuyibangela.

Izintambo eziphephile ngaphakathi ziluhlaza okwesibhakabhaka (RAL 5015) ngokwe-IEC 60079-14 ukuze zibonakale ngokushesha ezindaweni eziyingozi. Le khodi yombala eyimpoqo ivumela ochwepheshe bezogesi ukuthi bahlukanise ngokushesha izifunda ze-IS nezintambo zikagesi ezingezona eze-IS—ukuvimbela ukuxhumeka kwamandla ayingozi ngengozi. Funda indinganiso, okuhlukile, kanye nezindlela zokukhetha.