Zithunzi za PSE
1.Chitsimikizo chachitetezo: Soketi iyenera kupititsa chiphaso cha bungwe lodziwika bwino la chitetezo, monga UL, ETL , CE, UKCA, PSE, CE etc, kuti atsimikizire kuti akudutsa mayeso otetezeka ndi odalirika.
2.Kumanga kwapamwamba: Thupi lalikulu la switchboard liyenera kupangidwa ndi zipangizo zamtengo wapatali, monga pulasitiki yolimba yolimba. Zigawo zamkati ziyenera kupangidwa ndi zipangizo zolimba monga mawaya amkuwa kuti zitsimikizire kuti magetsi otetezeka komanso odalirika.
3.Chitetezo cha surge: Zingwe zamagetsi ziyenera kukhala ndi chitetezo chachitetezo chokhazikika kuti chiteteze zida zolumikizidwa ku mawotchi amagetsi omwe angayambitse kuwonongeka kapena kulephera.
4.Mayeso olondola amagetsi: Mavoti amagetsi a ma switchboards ayenera kukhala olondola komanso olembedwa bwino kuti apewe kulemetsa komanso kuchepetsa ngozi yamoto wamagetsi.
5.Kuyika koyenera: Chophimbacho chiyenera kukhala ndi dongosolo loyenera kuti lichepetse kuopsa kwa magetsi ndikuonetsetsa kuti magetsi akugwira ntchito.
Chitetezo cha 6.Overload: Chophimbacho chiyenera kukhala ndi chitetezo chokwanira kuti chiteteze kutenthedwa ndi moto wamagetsi chifukwa cha katundu wochuluka.
7.Ubwino wa waya: Waya wolumikiza chingwe ndi zitsulo ziyenera kupangidwa ndi zipangizo zamtengo wapatali, ndipo kutalika kwake kumayenera kusinthasintha mokwanira kuti ayike.