Ngena elabhorethri yethu, ngena ngaphakathi kwezibani zethu, wazi okwengeziwe, unentshisekelo kakhudlwana, khetha kakhulu, Yilokho okushiwo uphawu lomkhiqizo, ubuhle bomkhiqizo.
Ihlola ukuthi ingabe ukumelana nokubekwa phansi kuyahlangabezana yini nezimfuneko zezinga futhi ithembisa ukuphepha kwezibani kubantu.
Umsebenzi we-grounding wukuthi lapho ukwahlukanisa kwezibani kwehluleka, ukuvuza kwamanje kuzongena ngqo emhlabeni ngocingo oluphansi futhi ngeke kulimaza umzimba womuntu. Ngakho-ke, ukuphikiswa okuncane kokumisa phansi, kuphephe kakhulu.
Indlela yokuhlola ukumelana nesisekelo?
Sihlola ngaphansi kwe-Europe standard:okokufaka kwamanje okungu-12A, isikhathi sokuhlola imizuzwana emi-5, uma ukumelana nokubekwa phansi ≦ 500m, kuyafaneleka.
Masisebenzise isiqeshana esibomvu sixhume intambo yaphansi.
isiqeshana esimnyama sixhuma umzimba wokukhanya okuthola kalula ugesi, sivame ukukhetha isikulufu.
Bese uqala ukuhlola.
Manje, ake sihlole inani lokumelana nokubekwa phansi okungu-23MΩ kuphela, kuphephe ngokuphelele.
Kunamaphuzu amathathu abalulekile ukumelana:
1. Impahla yocingo lwangaphandle, ucingo lwethusi, olunokuqina okuqinile nokumelana okuphansi
2. I-cross-section yocingo, enkulu, ukumelana okuncane, ngokwezinga le-IEC, ingxenye yocingo idinga ≥ 0.75 square millimeter,sihlangabezana ngokuphelele nezinga eliphezulu nangaphezulu kunemakethe.
3. I-chip board, kunengxenye exhuma ucingo oluphansi, okumele idinge ukuqinisa isikulufu, noma izolahlekelwa ukuqhutshwa kwe-conductivity.
Siyabonga ngokufunda lesi sihloko, singama-liper, singabakhiqizi bokukhanya kwe-LED, asenzi nje umhlaba wonge amandla amaningi, futhi gcina uphephile.
Sobonana ngokuzayo.
Isikhathi sokuthumela: Sep-29-2020
