Discrimination is only achivable by using different frame sizes of devices, and can only be verified by using the same maufacture throughout your system. As opposing manufactures will not provide you with approval, as these values are provided by test only.
As a general rule if you miss a frame...
All good posts guys and helpful, but not realy a post for the discussion of professional libabilty or experiance.
As for the record, I am a Building Services Engineer and I am the link between all the component parts of the Electical design team. However I am not a PE specialist and do listen...
I am working on a project which has a 5MVA 11000V/6600V Delta Star Transformer. Even although both sides are HV and there is no neutral would i be expected to earth the Star point. If a neutral is required then there will be a further step down transformer shall be provided to a suitable...
The old problem I think - Your socket outlets are two close together and of opposite phases.
I am of the opinion that the above BS clause is applicable and only for where maintenance is being carried out. However I do agree that we all have a duty to minmise any danger and to this end I have...
