When routing a fluid line parallel to an electrical wire bundle, which should be on top?

• A. Fluid line
• B. Electrical wire bundle
• C. Support clamp
• D. Heat shield

Answer: (B)

When you route a fluid line parallel to an electrical wire bundle, the goal is to minimize the chance that any fluid leak will reach and affect the wiring. Gravity causes any leakage along the line to tend downward, so placing the electrical wire bundle on top means leaks would drip away from the conductors rather than onto them. In this arrangement the fluid line sits below the bundle, reducing the risk of fluid contamination or shorting the wiring. A support clamp helps keep the pair secured and properly spaced to prevent chafing, while a heat shield would be used only if there’s a heat source nearby that could affect the wiring or fluid lines.