N
nicsin02
Hi guys, I am currently testing a large hotel (over 300 rooms) it is only the 4th level we have to test this year (65 rooms) each room has its only 5-way d/b consisting of a 32 & 6 Rcbo type B, each of these d/b's are fed from different larger d/bs installed in various fire escapes along the corridor, I have found that these small d/b's in the rooms Zdb's are getting quite high the further away they are getting from their supply d/b some of them even going as high as 1ohms therefore making the Zs of the 32a circuit far too high, ie 1.76. Ohms etc.......
1. Is a mac Zs the same on a 60898 as a 61009?
2. If the max Zs test fails will they use the fact it is protected by an RCD so Zs is mute or is this Rcbo merely used as additional protection not fault protection?
Thanks guys
1. Is a mac Zs the same on a 60898 as a 61009?
2. If the max Zs test fails will they use the fact it is protected by an RCD so Zs is mute or is this Rcbo merely used as additional protection not fault protection?
Thanks guys