In electrical cable pulls, what should wires be lubricated with before and during the pull?

In electrical cable pulls, what should wires be lubricated with before and during the pull?

• A. Wire lubricant
• B. Lubricating oil
• C. Graphite powder
• D. Water

Answer: (A)

Reducing friction on the cable jacket during a pull is essential to protect insulation and keep pulling tension manageable. Wire lubricant is the right choice because it’s a specialized, non-conductive product designed for electrical cables. It coats the surface on which the cable glides, minimizes resistance against duct walls, and won’t threaten insulation or create conductive paths. This type of lubricant stays where it’s needed during the pull and doesn’t introduce moisture or residues that could cause damage. Other options aren’t suitable. Regular lubricating oil can be conductive or leave sticky residues that attract dirt and may degrade insulation. Water introduces moisture that can promote corrosion and shorting. Graphite powder, while a dry lubricant, is conductive and can contaminate ducts or joints, posing electrical hazards.

Reducing friction on the cable jacket during a pull is essential to protect insulation and keep pulling tension manageable. Wire lubricant is the right choice because it’s a specialized, non-conductive product designed for electrical cables. It coats the surface on which the cable glides, minimizes resistance against duct walls, and won’t threaten insulation or create conductive paths. This type of lubricant stays where it’s needed during the pull and doesn’t introduce moisture or residues that could cause damage.

Other options aren’t suitable. Regular lubricating oil can be conductive or leave sticky residues that attract dirt and may degrade insulation. Water introduces moisture that can promote corrosion and shorting. Graphite powder, while a dry lubricant, is conductive and can contaminate ducts or joints, posing electrical hazards.