Recent content by steveo12350

Thanks Eric, I shall get this one printed off.

Hi John, I have checked the values, and they all come under the 0.57 ZS values. So this seems to be covered. Im thinking type C still the best, as patients are often hooked up to drip machines. Just thought I would share the latest with you. Hi John, I have recently checked the...

Hi John, I dont have the results with me, but i belive they are higher that what a type C would allow, so i will have to look at Type B. It is a 4mm ring main in steel trunking and conduit. They have had contractors in the past doing room refurbishment and electrical alterations , I have...

Thanks for the reply, Im working with an old installation and trying to minimize nuisance tripping. I am new to this area, so that is why im asking. I cant know everything. The existing board they are using type 3 breakers, and type C are generally used for commercial situations, to cover light...

Thanks for the reply, what im trying to make sure doesnt happen is the RCBO tripping when medical equipment is being used. This is just for the ward area and patient rooms. Some of the existing runs are very long and the existing breakers are type3. I was just concearned that the ZS values are...

Hi guy and gals, Im an electrician that has started in a hospital and have been tasked with changing a distribution board. Thry are currently old type 3 3871 mcb, and I was going to change them for 32 Amp rcbo type c rated, 30mA . The circuites are mainly ring mains, that cover patient rooms...