When I apply an image texture to my material its fine. But when I Connect a Normal Map The objectis black in rendered view.
Also how do you add a .blend file in your posts?
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There is one other cause for Tangent Space normal maps turning black: if u are using microdisplacement (adaptive setting for subsurf modifier) normal map wont be able to calculate correctly, for this moment at least.
If you were to combine normal maps with "true" displacement, you can only choose between world and object space.
This is probably because your normals are not pointing in the right direction.
Tangent space normal maps rely on the surface normal in the approximation,so if the normals are not right the material won't work.
To recalculate your normal,select all faces in the mesh and press Ctrl+N,If this didn't work,you can check invert.