Before applying sealing compounds in areas with flammable gases, what must be done with conductors?

Before applying sealing compounds in areas with flammable gases, it is essential to remove sheathing from conductors. This is crucial because sealing compounds need to make direct contact with the conductor's surface to form an effective barrier against gas and moisture infiltration. The removal of the sheathing allows the sealing compound to adhere properly, ensuring that the integrity of the seal is maintained and that the risk of ignition from flammable gases is minimized.

Using tape, grease, or additional insulation may not provide the necessary protection or sealing integrity required in these sensitive environments, as they do not facilitate the same level of bonding that direct application of the sealing compound would achieve on exposed conductors.