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Regulations for HEVs and EVs on the Electric Safety

New regulations established in Japan due to the rapid increase in hybrid electric vehicles (HEVs) and electric vehicles (EVs) in the market. The background, reasons for new regulations, and the process of creating the Electric Safety Regulation based on ECE-R100 are outlined. The regulations focus on protection against electric shock, system safety requirements, and the draft discussion schedule.

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Regulations for HEVs and EVs on the Electric Safety

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  1. Regulations for HEVs and EVs on the Electric Safety MLIT, Japan

  2. （Number of Vehicles) HEV EV （FY） The background of the new regulations establishment ● In Japanese market, the number of HEVs and EVs is increasing rapidly for several years. The number of HEVs and EVs in 97’-05’

  3. ●Since the electric safety regulation of FCVs is already established in Japan, establishment of that of HEVs-EVs is pressing need. ● Although ECE-R100 is existing, it is difficult to introduce it into the Japanese regulations with the following reasons. -The scopeof ECE-R100 is limited to Battery EVs． -The technical range of ECE-R100 does not correspond to the current new technology.

  4. ●As we have announced in the previous GRSP meeting, we are planning to establish the new safety regulation on the Electric Safety and Crash Safety for HEVs and EVs. ●The new safety regulation on the Electric Safety will be created based on ECE-R100. ●The new Electric Safety regulation leads to the ECE-R100 amendment which we will propose from now on.

  5. The Outline of the Electric Safety Regulation(based on the ECE-R100) about HEVs and EVs ●Protection against electric shock at usually usage - Protection against direct contacts with live part. ex. Barrier, enclosure, etc. - Protection against indirect contact. ex. Electrical connection between exposed conductive parts (barrier, enclosure, etc.) and electrical chassis (vehicle flame, etc.) to prevent outbreak of high voltage - Insulation resistance. ex. Keep not less than 100Ω/V of the nominal voltage between live parts and electrical chassis. ●System Safety Requirement ex. The safety of the operation method and the charge state.

  6. Draft of Discussion Schedule Kick off discussion about this issue Established draft regulation about crash safety of HEV and EV Collected public comments Enter into enforce this regulation Proposed amendment of ECE-R100 at GRSP/GRPE ● April 06’ ● March 07’ ● April 07’ ● Autumn 07’ ● December 07’

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