FTB Industrial Contraptions does not interact with other power cables from other mods. All other mods work together with power connectors/machines but nothing from FTB IC works will connect to the rest of the mods.

FTBIC does not accept power from other mods, it only accepts power made by it's own power generation, and as such does not have any handling for 'Forge Energy (FE)' handling devices. This is a choice by ftbic and by design