S
sharpy1983
Hi all,
Been testing on part of the motorway network and come across a few Ze readings which are a little higher than should be for a TNCS supply. Getting 0.45 Ohms from one supply and 0.51 from another.
Been told that the DNO will just state that 0.35Ohms is a guide and that they wont bother their arses to look into it? Is this really the case? Going to give the DNO a call in the morning and hopefully get them to raise a job so they can attend, was just wondering of anyone has had any similar experiences.
Also, If for example, the main cut-out is a BS1361 100Amp, but my Zs at the dist point is higher than the maximum Zs stated in BS7671, am I ok to replace the fuse for a lower rating or again, is this a DNO job?
Many Thanks
Been testing on part of the motorway network and come across a few Ze readings which are a little higher than should be for a TNCS supply. Getting 0.45 Ohms from one supply and 0.51 from another.
Been told that the DNO will just state that 0.35Ohms is a guide and that they wont bother their arses to look into it? Is this really the case? Going to give the DNO a call in the morning and hopefully get them to raise a job so they can attend, was just wondering of anyone has had any similar experiences.
Also, If for example, the main cut-out is a BS1361 100Amp, but my Zs at the dist point is higher than the maximum Zs stated in BS7671, am I ok to replace the fuse for a lower rating or again, is this a DNO job?
Many Thanks
