Common use of Isolation resistance Clause in Contracts

Isolation resistance. This paragraph shall not apply to electrical circuits that are galvanically connected to each other, where the DC part of these circuits is connected to the electrical chassis and the specific voltage condition is fulfilled. 5.1.3.1. Electric power train consisting of separate Direct Current- or Alternating Current-buses If AC high voltage buses and DC high voltage buses are galvanically isolated from each other, isolation resistance between the high voltage bus and the electrical chassis shall have a minimum value of 100 Ω/volt of the working voltage for DC buses, and a minimum value of 500 Ω/volt of the working voltage for AC buses. The measurement shall be conducted according to Annex 5A "Isolation resistance measurement method for vehicle based tests". 5.1.3.2. Electric power train consisting of combined DC- and AC-buses If AC high voltage buses and DC high voltage buses are galvanically connected, isolation resistance between the high voltage bus and the electrical chassis shall have a minimum value of 500 Ω/volt of the working voltage. However, if all AC high voltage buses are protected by one of the two following measures, isolation resistance between the high voltage bus and the electrical chassis shall have a minimum value of 100 Ω/V of the working voltage: (a) At least two or more layers of solid insulators, electrical protection barriers or enclosures that meet the requirement in paragraph 5. 1.1. independently, for example wiring harness; (b) Mechanically robust protections that have sufficient durability over vehicle service life such as motor housings, electronic converter cases or connectors; The isolation resistance between the high voltage bus and the electrical chassis may be demonstrated by calculation, measurement or a combination of both. The measurement shall be conducted according to Annex 5A "Isolation resistance measurement method for vehicle based tests". 5.1.3.3. Fuel cell vehicles In fuel cell vehicles, DC high voltage buses shall have an on-board isolation resistance monitoring system together with a warning to the driver if the isolation resistance drops below the minimum required value of 100 Ω/V. The function of the on-board isolation resistance monitoring system shall be confirmed as described in Annex 6. The isolation resistance between the high voltage bus of the coupling system for charging the REESS, which is not energized in conditions other than that during the charging of the REESS, and the electrical chassis need not to be monitored. 5.1.3.4. Isolation resistance requirement for the coupling system for charging the REESS 1.3.1. when the conductive connection is disconnected and the isolation resistance is measured at the high voltage live parts (contacts) of the vehicle conductive connection device. During the measurement, the REESS may be disconnected.

Isolation resistance. This paragraph shall not apply to electrical circuits that are galvanically connected to each other, where the DC part of these circuits is connected to the electrical chassis and the specific voltage condition is fulfilled. 5.1.3.1. Electric power train consisting of separate Direct Current- or Alternating Current-buses If AC high voltage buses and DC high voltage buses are galvanically isolated from each other, isolation resistance between the high voltage bus and the electrical chassis shall have a minimum value of 100 Ω/volt of the working voltage for DC buses, and a minimum value of 500 Ω/volt of the working voltage for AC buses. The measurement shall be conducted according to Annex 5A 4A "Isolation resistance measurement method for vehicle based tests". 5.1.3.2. Electric power train consisting of combined DC- and AC-buses If AC high voltage buses and DC high voltage buses are galvanically connected, isolation resistance between the high voltage bus and the electrical chassis shall have a minimum value of 500 Ω/volt of the working voltage. However, if all AC high voltage buses are protected by one of the two following measures, isolation resistance between the high voltage bus and the electrical chassis shall have a minimum value of 100 Ω/V of the working voltage: (a) At least two or more layers of solid insulators, electrical protection barriers or enclosures that meet the requirement in paragraph 5. 1.1. independently, for example wiring harness; (b) Mechanically robust protections that have sufficient durability over vehicle service life such as motor housings, electronic converter cases or connectors; The isolation resistance between the high voltage bus and the electrical chassis may be demonstrated by calculation, measurement or a combination of both. The measurement shall be conducted according to Annex 5A "Isolation resistance measurement method for vehicle based tests". 5.1.3.3. Fuel cell vehicles In fuel cell vehicles, DC high voltage buses shall have an on-board isolation resistance monitoring system together with a warning to the driver if the isolation resistance drops below the minimum required value of 100 Ω/V. The function of the on-board isolation resistance monitoring system shall be confirmed as described in Annex 6. The isolation resistance between the high voltage bus of the coupling system for charging the REESS, which is not energized in conditions other than that during the charging of the REESS, and the electrical chassis need not to be monitored. 5.1.3.4. Isolation resistance requirement for the coupling system for charging the REESS 1.3.1. when the conductive connection is disconnected and the isolation resistance is measured at the high voltage live parts (contacts) of the vehicle conductive connection device. During the measurement, the REESS may be disconnected.

Isolation resistance. This paragraph shall not apply to electrical circuits that are galvanically connected to each other, where the DC part of these circuits is connected to the electrical chassis and the specific voltage condition is fulfilled. 5.1.3.1. Electric power train consisting of separate Direct Current- or Alternating Current-buses If AC high voltage buses and DC high voltage buses are galvanically isolated from each other, isolation resistance between the high voltage bus and the electrical chassis shall have a minimum value of 100 Ω/volt Ω/volt of the working voltage for DC buses, and a minimum value of 500 Ω/volt Ω/volt of the working voltage for AC buses. The measurement shall be conducted according to Annex 5A 4 "Isolation resistance measurement method for vehicle based testsmethod". 5.1.3.2. Electric power train consisting of combined DC- and AC-buses If AC high voltage buses and DC high voltage buses are galvanically connected, connected isolation resistance between the high voltage bus and the electrical chassis shall have a minimum value of 500 Ω/volt Ω/volt of the working voltage. However, if all AC high voltage buses are protected by one of the two 2 following measures, isolation resistance between the high voltage bus and the electrical chassis shall have a minimum value of 100 Ω/V Ω/V of the working voltage: (a) At least two Double or more layers of solid insulators, electrical protection barriers or enclosures that meet the requirement in paragraph 5. 1.15.1.1. independently, for example wiring harness; (b) Mechanically robust protections that have sufficient durability over vehicle service life such as motor housings, electronic converter cases or connectors; The isolation resistance between the high voltage bus and the electrical chassis may be demonstrated by calculation, measurement or a combination of both. The measurement shall be conducted according to Annex 5A 4 "Isolation resistance measurement method for vehicle based testsmethod". 5.1.3.3. Fuel cell vehicles In fuel cell vehiclesIf the minimum isolation resistance requirement cannot be maintained over time, DC high voltage buses then protection shall have an onbe achieved by any of the following: (a) Double or more layers of solid insulators, barriers or enclosures that meet the requirement in paragraph 5. 1.1. independently; (b) On-board isolation resistance monitoring system together with a warning to the driver if the isolation resistance drops below the minimum required value value. The isolation resistance between the high voltage bus of 100 Ω/V. the coupling system for charging the RESS, which is not energized besides during charging the RESS, and the electrical chassis need not be monitored. The function of the on-board isolation resistance monitoring system shall be confirmed as described in Annex 6. The isolation resistance between the high voltage bus of the coupling system for charging the REESS, which is not energized in conditions other than that during the charging of the REESS, and the electrical chassis need not to be monitored5. 5.1.3.4. Isolation resistance requirement for the coupling system for charging the REESS 1.3.1. when RESS For the conductive connection vehicle inlet intended to be conductively connected to the grounded external AC power supply and the electrical circuit that is disconnected and galvanically connected to the vehicle inlet during charging of the RESS, the isolation resistance is measured at between the high voltage live parts (contacts) of bus and the vehicle conductive connection deviceelectrical chassis shall be at least 1 MΩ when the charger coupler is disconnected. During the measurement, the REESS traction battery may be disconnected.

Isolation resistance. This paragraph shall not apply to chassis connected electrical circuits that are galvanically connected to each other, where the DC maximum voltage between any live part of these circuits is connected to and the electrical chassis and the specific voltage condition is fulfilledor any exposed conductive part does not exceed 30 V AC (rms) or 60 V DC. 5.1.3.1. Electric power train consisting of separate Direct Current- or Alternating Current-buses If AC high voltage buses and DC high voltage buses are galvanically isolated from each other, the isolation resistance between the high voltage bus and the electrical chassis shall have a minimum value of 100 Ω/volt V of the working voltage for DC buses, and a minimum value of 500 Ω/volt V of the working voltage for AC buses. The measurement shall be conducted according to Annex 5A 4A "Isolation resistance measurement method for vehicle based tests". 5.1.3.2. Electric power train consisting of combined DC- and AC-buses If AC high voltage buses and DC high voltage buses are galvanically connected, isolation resistance between the any high voltage bus and the electrical chassis shall have a minimum value of 500 Ω/volt of the working voltage. However, if all AC high voltage buses are protected by one of the two following measures, isolation resistance between the any high voltage bus and the electrical chassis shall have a minimum value of 100 Ω/V of the working voltage: (a) At least two Double or more layers of solid insulators, electrical protection barriers or enclosures that meet the requirement in paragraph 5. 1.15.1.1. independently, for example wiring harness; (b) Mechanically robust protections that have sufficient durability over vehicle service life such as motor housings, electronic converter cases or connectors; The isolation resistance between the high voltage bus and the electrical chassis may be demonstrated by calculation, measurement or a combination of both. The measurement shall be conducted according to Annex 5A 4A "Isolation resistance measurement method for vehicle based tests". 5.1.3.3. Fuel cell vehicles In fuel cell vehicles, DC high voltage buses shall have an on-board isolation resistance monitoring system together with a warning to the driver if the isolation resistance drops below the minimum required value of 100 Ω/V. The function of the on-board isolation resistance monitoring system shall be confirmed as described in Annex 6. The isolation resistance between the high voltage bus of the coupling system for charging the REESS, which is not energized in conditions other than that during the charging of the REESS, and the electrical chassis need not to be monitored. 5.1.3.4. Isolation resistance requirement for the coupling system for charging the REESS 1.3.1. when the conductive connection is disconnected and the isolation resistance is measured at the high voltage live parts (contacts) of the vehicle conductive connection device. During the measurement, the REESS may be disconnected.