AIRPORT 400 Hz PUR, halogen-free, flame retardant

• Fine copper wire in acc. with DIN VDE 0295 and IEC 60228
• Conductor insulation TPE, black
  with number 1-6 + blue/...,
  with number 7-30/1 mm²
• 4 conductors each 1 mm² twisted to a quad
• Conductors and 6 bundles laid-up together
• PUR inner jacket
• Support braiding
• PUR outer jacket, orange (RAL 2003)

• Bare copper conductor, 7 strands
• Conductor insulation cross-linked polyethylene, black with number 1-6 + green-yellow
• Polyethylene inner jacket
• Concentric conductor of plain Cu wires, cross-section 35 mm²
• Black polyethylene outer jacket

• Low adhesion, abrasion resistant, halogen-free, resistant to UV, oil, hydrolysis and microbial attack

Special feature:
The use of four-conductor cables to tran***it large amounts of power in a 400 Hz grid results in voltage asymmetries and larger inductive voltage losses. These unf***orable cable characteristics can be improved through the employment of seven-conductor cables. In this case the central conductor is used as a protective / ground conductor (green-yellow or blue) and six conductors with the same cross section (black with imprint) stranded in a single layer around the central conductor. Each pair of two opposite conductors is connected in parallel to a phase conductor.