© 2005 MILTECH HELLAS S.A. >Projects >NH-90 Helicopters

	>Projects >NH-90 Helicopters
	NH-90 Harnesses Project In early 2004, MILTECH built a new manufacturing facility dedicated to the production of demanding Electrical Harnesses for military aircraft's and special defense land system. EUROCOPTER France and EUROCOPTER Germany selected MILTECH for the manufacturing and testing of all the electrical harnesses and bays. The NH-90 harnesses undergo four main phases before the acceptance and delivery of the final product. Namely: MRO Laser cutting & printing Machine, Main Assembly, Over Braiding and Electrical Test.
	MRO Laser Cutting & Printing Machine The MRO machine responds to the long-standing needs of aircraft maintenance, repair and modification centers throughout the world, ensured by the high Laser printing quality. The MRO machine guarantees: 8 A non-aggressive marking causing no degradation to the cable insulation, conforming to multi-national aeronautical standards. 8 A permanent, unalterable contrast, resistant to solvent rub, light immersion and all other tests imposed by aircraft and helicopters manufacturers. 8 Improved productivity and simplified production removing the need for post-marking treatment designed to improve the marking presentation and durability. Furthermore, the MRO Machine with a speed of 60m/min and min cable AWG 26; ensures high quality cutting and printing results for all UV-markable single core wires and shielded multi-core cables.

	Main Assembly The assembly line of the harnesses is set so as to meet all the quality specifications and high aeronautical demands of a modern production. Highly trained operators, work on a computer database, which minimizes the risk of potential low quality products. Four (4) gauge meter tables ensure the desired length of the specified harnesses with a tolerance of ±0.5 cm. Constant quality monitoring from qualified personnel for each individual assembly step, guarantees high quality products to the customers.

	Over-Braiding Three overbraiding Machines protect the harnesses with copper & textile braid depending on the diameter of the harness and the desired density of the braid. The Harnesses subjected to over braiding have a range of min diameter of 1mm up to 23 mm. Both Textile and Copper braiding, protect the harnesses and hence the helicopter from various aggressions; such as EMI, NEMP, EMC, TEMPTSET etc. Two qualified operators follow the over braiding processes as instructed in the data base of each machine.

	Electrical Test For each harness a fully automatic electrical test is performed in order to assure the correctiveness of the product, in respect to the Aeronautical & Helicopter Test standards. Each Harness undergoes the following electrical tests: Continuity Test, ensuring that all pin-to-pin connections have been made in respect to the technical specifications. Voltage Strength Test (1300V DC or 1000V AC). Insulation Resistance Measurement Test, with Voltage measurement 500V DC, 20MΩhm. A test Report is presented for each test that accompanies the harness for delivery.