To ensure the safety of the installation and the system must be completely eHouse separation (isolation) any external power supply from outside the system, and especially of the masses and voltage 230V .
Ili kuhakikisha usalama wa ufungaji na mfumo lazima kabisa eHouse kujitenga (upweke) yoyote ya nje ya umeme kutoka nje ya mfumo, na hasa ya raia na voltage 230V .