Philippine THHN vs American THHN: What’s the Difference?
If you’ve had THHN wire rejected for the wrong certification mark, received cable that doesn’t match the drawings, or struggled with wire too stiff to pull through conduit, you already know the surface similarities can be misleading. Philippine standard THHN and American standard THHN look alike—copper, PVC, nylon jacket, 600V, 90°C—but they’re not the same. […]