Hello all,
I'm sure someone on here will be able to help me.
The company I work for manufacturers electronic signs, ticket machines and information kiosks. You'll see these dotted around the UK in stations and bus shelters etc.
I joined the company 3 years ago and although the products are good, I am the only one with any form of electrical qualifications. Now I'm fine with the regulations on connecting these pieces of street furniture but I struggle when it comes to finding any guidance on how they units themselves are constructed.
Is there a document or any guidance on the sizing of the earthing conductors within the units? At the moment the guys in the factory are using 1mm singles to earth exposed conductive parts and that seems too small to me, even though it does usually result in less 0.1 ohms.
I can't seem to find any specific advice, i.e. the unit is protected by a 13a fuse then all earthing conductors should be xxmm for example.
Thanks in advance,
Rich
I'm sure someone on here will be able to help me.
The company I work for manufacturers electronic signs, ticket machines and information kiosks. You'll see these dotted around the UK in stations and bus shelters etc.
I joined the company 3 years ago and although the products are good, I am the only one with any form of electrical qualifications. Now I'm fine with the regulations on connecting these pieces of street furniture but I struggle when it comes to finding any guidance on how they units themselves are constructed.
Is there a document or any guidance on the sizing of the earthing conductors within the units? At the moment the guys in the factory are using 1mm singles to earth exposed conductive parts and that seems too small to me, even though it does usually result in less 0.1 ohms.
I can't seem to find any specific advice, i.e. the unit is protected by a 13a fuse then all earthing conductors should be xxmm for example.
Thanks in advance,
Rich