VG 96903-78:2024-06

This document is applicable to equipment to be developed or procured for, or to be furnished to the Bundeswehr. It is also applicable to the modernisation of equipment already introduced. The document specifies requirements for the protection against the effects of an exo-NEMP. The test method according to this document is intended for verifying the required immunity to disturbance of equipment caused by conducted disturbances which, in the case of an exo-NEMP, can couple into all electrically conductive connections of compact systems on metallic equipment carriers. The aim is to establish a basic strength for equipment. However, this does not automatically guarantee NEMP protection of the equipment after incorporation into an overall system. When applying this test method, the coupling of an electromagnetic wave to a cable/an insulated wire or a bundle of cables/insulated wires (shielded or unshielded) is simulated. Thus, the effect of the transfer impedances of the cable/the insulated wire, the connectors as well as the equipment casing on the electronic is recorded. When applying this test method, the NEMP disturbances are inductively coupled to cables/insulated wires or bundles. In the case of a shielded cable, the coupling of a sheath current to the internal conductors is simulated (transfer impedance). The method is applicable to test single items of equipment as well as equipment consisting of several items functionally related. Working Committee NA 140-00-19 AA "Nuklear-Elektromagnetischer Puls (NEMP) und Blitz" ("Nuclear electromagnetic pulse (NEMP) and lightning protection") at DIN Standards Committee Electrical Engineering (NE) is responsible for this document.