DGUV Information 200-006 - Training for work on vehicles with high voltage systems

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Abschnitt 5.5 - 5. Scrappage

Consideration must be given to the electrical hazards presented by the HV vehicle when it is scrapped. HV vehicles are not always identifiable externally as such. For this reason, vehicles must be examined prior to scrappage for the possible presence of HV components. The orange cables, the decals indicating high voltage and batteries marked with higher voltages than the conventional 12, 24 and 42 V are clear indications that the vehicle has an HV system. Under normal circumstances, the HV components fitted to series production vehicles with intrinsically safe HV systems do not present an electrical hazard. Should the cable insulation or the shrouding of the HV components be damaged or destroyed however, a risk exists of arcing caused by short-circuits or of electric shock in the event of contact with the live parts.

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Figure 9: Example of the marking of HV components

Prior to scrappage, the HV system must be isolated and the HV components disconnected from the vehicle electrical system and prepared for removal. These tasks must be performed by an employee competent to perform work on vehicle HV systems and with application of the five safety rules and observance of the manufacturer's instructions for the specific vehicle. The electrical energy storage devices (such as batteries and EDLCs) must then be removed in accordance with the manufacturer's instructions and properly disposed of.