T
theskid
hi all,
In a bit of a pickle ,got niceic audit imminent ,and i have some exccesive readings from a 110v transformer backed up by 60898 type c 16amps mcb acording to BS7671 pg 61 41.6 max is 0.34 .can change to a type B to get max 0.69. these reading s are from another tester ,who calculated them by adding the zs at the transformer to r1 + r2 readings, as we dont seem to have a tester that can read Zs at 110v
is there a formula to calculate properly as im sure his method was wrong when takeing into account the 110v and as informed by the NICEIC technical helpline
they didn,t really help me with a formula.does one exist /or do we have to get a new teat instrument ,if so which one so it can take Zs at 230 and 110
thankyou
In a bit of a pickle ,got niceic audit imminent ,and i have some exccesive readings from a 110v transformer backed up by 60898 type c 16amps mcb acording to BS7671 pg 61 41.6 max is 0.34 .can change to a type B to get max 0.69. these reading s are from another tester ,who calculated them by adding the zs at the transformer to r1 + r2 readings, as we dont seem to have a tester that can read Zs at 110v
is there a formula to calculate properly as im sure his method was wrong when takeing into account the 110v and as informed by the NICEIC technical helpline
they didn,t really help me with a formula.does one exist /or do we have to get a new teat instrument ,if so which one so it can take Zs at 230 and 110
thankyou
