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Conduit problems can be avoided by following these guidelines: 

• Do not locate conduit where passengers or maintenance personnel might use it as a handhold or footstep. 

• Provide drain holes at the lowest point in a conduit run. Drilling burrs should be carefully removed. 

• Support conduit to prevent chafing against structure and to avoid stressing its end fittings. 

## Rigid Conduit 

Damaged conduit sections should be repaired to preclude injury to the wires or wire bundle that may consume as much as 80 percent of the tube area. Minimum acceptable tube bend 

