Not more than 24 inches for electrical wiring (see AC 43.13-1B page 11-11). Should be "adequately supported to prevent excessive movement in areas of high vibration and have no interference with other wires, cables, supports, etc.

 

Flexible hydraulic hoses every 24 inches. Hard lines I believe is about every 15 inches but cannot find the reference.

 

Regards,

 

Jeff Edwards

LIVP N619SJ