188V la muc dien ap do duoc do luong trong cac he thong luu tru nang luong hoac cac thiet bi dac dien. Gia tri nay khong phoi bien nhu 110V hay 220V nhung co the xuat hien trong cac he thong dac rieng. Viec hieu ro 188V yeu cau cach ly day du va bien phap bao ho an toan.
Nguon goc xuat hien 188V co the tu thiet ke nguon bien ap, quy tac dieu chinh dien ap, hoac he thong cap nguon song song. Tien toi la 188V co nhieu tai lieu tieu chuan khac nhau giua cac nuoc va loai thiet bi. Quan trong la danh gia muc do nguy hiem va thuc hien cac quy trinh an toan truoc khi tiep can vao muc dien ap nay. Khi do do dien ap nen su dung do cam bien co the do duoc phu hop va co lop cach ly day du.
De lam viec voi 188V, nguoi van han can co PPE phu hop, boc cach ly va quy trinh khoa phat dien. Noi lam viec phai co bien bao va he thong ngat nguon. Tuyet doi khong cham vao day dan hay phan cung khi nguon dang hoat dong. Theo doi thiet bi bang dong ho do dien ap va kiem tra an toan truoc khi tiep tuc bao tri.
Trong cong nghe cong nghiep, 188V co the duoc dung cho cac mach nguon phu, bo luu tru nang luong, hay dieu khien servo va he thong truyen dong yeu cau muc dien ap dac thu. Viec thiet ke he thong voi 188V can xet hieu luc, nhiet do, tuong thich voi cac thanh phan khac. Quy trinh bao ve va quan ly nguy co giup tang do tu tin cua he thong.