ABSTRACT
Voltage bands ere are two bands or ranges of voltage stated in the BS 7671:2008 – Band I and Band II. • Band I (ELV)…not exceeding 50V a.c. or 120 V ripple-free d.c. between
conductors and between conductors and earth • Band II (LV)…exceeding extra-low but not exceeding 1000V a.c. or 1500 V d.c.
