ar4770p103003a

Perform protective ground conductor and insulation resistance measurement

Type ar · topic 47.70 · version 0102 · 2020-04-15

Applies to: Model 167.117/317 with engine 654 Model 167.154/354 with engine 274 Model 213.153 as of model year 2020 Model 213.155 Model 293

Where it sits

Function group 1 Engine › 47 Fuel system, powertrain energy supply › 47.70 Powertrain energy supply — Series 167 (models 117, 154, 317, 354) · Series 213 (models 153, 155) · Series 293 · Series 654

EinPAS 16 Fuel/power supply to engine › 16.20 High-voltage on-board electrical system › 16.20.1 Basic information — Series 167 (models 117, 154, 317, 354) · Series 213 (models 153, 155) · Series 293 · Series 654

Also applies to engines/gearboxes: 274 ***

AR47.70-P-1030-03A

Perform protective ground conductor and insulation resistance measurement

Danger

Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC)

Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines.

AS00.00-Z-0035-01A

Topical note

General information on vehicles with high-voltage on-board electrical system and/or lithium-ion battery and/or gaseous-fuel drive system as well as personal protective equipment

AH00.00-Z-0300-01A

Notes on safety-relevant components

AH00.00-Z-0019-01A

000 588 00 19 00 Insulation measuring unit

WS54.00-P-0046B

Model

167.117/317 with engine 654

Model

167.154/354 with engine 274

Model

213.153

as of model year 2020

Model

213.155

Model

293

The protective ground conductor and insulation resistance measurement should only be performed after the vehicle has been de-energized.
Otherwise test results may be incorrect.

The protective ground conductor and insulation resistance measurement on a high-voltage component must never be performed between HV+ (positive) and HV- (negative).
The high-voltage component can otherwise be damaged.

Use a resistance tester/insulation resistance tester as the test equipment.

Carefully connect the probes of the resistance/insulation resistance tester to the high-voltage connections.
Otherwise the high-voltage connections may be damaged.

Perform HV-AC circuit-1-phase protective ground conductor and insulation resistance measurement (vehicle socket measuring point) at the charger feed-in socket (X58/23)

Perform protective ground conductor and insulation resistance measurement

SAE charger feed socket (model 1 – SAE J1772 and IEC 62196-2) (alternating current)

L1

Phase L1

L2/N

Phase L2/neutral conductor

PE

Protective earth conductor

X58/23

Charger feed-in socket

P47.70-A073-05

Perform protective ground conductor and insulation resistance measurement

Japan charger feed-in socket (Typ1 - SAE J1772 and IEC 62196-2) (alternating current)

L1

Phase L1

L2/N

Phase L2/neutral conductor

PE

Protective earth conductor

X58/23

Charger feed-in socket

P47.70-A071-05

1

Calibrate resistance/insulation resistance tester.

2

Open socket flap

When the vehicle has been de-energized, the socket flap can only be opened using the diagnostic system.

3

Open cover of charger feed-in socket (X58/23).

4

Set resistance/insulation resistance tester to resistance testing mode.

5

Perform resistance test using resistance/insulation resistance tester between the protective ground conductor (PE) and the ground point of the protective earth conductor on the exhaust gas turbocharger.

Specified value < 1 (+0.9) Ω

6

Set resistance/insulation resistance tester to the insulation resistance test and 500 V.

7

With a test voltage of 500 V at the insulation resistance tester, perform the insulation/resistance measurement between phase L1 (L1) and the protective earth conductor (PE) of the charger feed-in socket (X58/23).

Specified value > 1 MΩ.

8

With a test voltage of 500 V at the insulation resistance tester, perform the insulation/resistance measurement between phase L2/neutral conductor (L2/N) and the protective earth conductor (PE).

Specified value > 1 MΩ.

Perform HV-AC circuit-3-phase protective ground conductor and insulation resistance measurement (vehicle socket measuring point) at the charger feed-in socket (X58/23)

Perform protective ground conductor and insulation resistance measurement

ECE charger feed-in socket (model 2) (alternating current)

L1

Phase L1

L2

Phase L2

L3

Phase L3

N

Neutral conductor

PE

Protective earth conductor

X58/23

Charger feed-in socket

P47.70-A070-05

Perform protective ground conductor and insulation resistance measurement

China charger feed-in socket (GB/T-AC) (alternating current)

L1

Phase L1

L2

Phase L2

L3

Phase L3

N

Neutral conductor

PE

Protective earth conductor

X58/23

Charger feed-in socket

P47.70-A067-05

9

Calibrate resistance/insulation resistance tester.

10

Open socket flap

When the vehicle has been de-energized, the socket flap can only be opened using the diagnostic system.

11

Open cover of charger feed-in socket (X58/23).

12

Set resistance/insulation resistance tester to resistance testing mode.

13

Perform resistance test using resistance/insulation resistance tester between the protective ground conductor (PE) and the ground point of the protective earth conductor on the exhaust gas turbocharger.

Specified value < 1 (+0.9) Ω

14

Set resistance/insulation resistance tester to the insulation resistance test and 500 V.

15

With a test voltage of 500 V at the insulation resistance tester, perform the insulation/resistance measurement between phase L1 (L1) and the protective earth conductor (PE).

Specified value > 1 MΩ.

16

With a test voltage of 500 V at the insulation resistance tester, perform the insulation/resistance measurement between phase L2 (L2) and the protective earth conductor (PE).

Specified value > 1 MΩ.

17

With a test voltage of 500 V at the insulation resistance tester, perform the insulation/resistance measurement between phase L3 (L3) and the protective earth conductor (PE).

Specified value > 1 MΩ.

18

With a test voltage of 500 V at the insulation resistance tester, perform the insulation/resistance measurement between the neutral conductor (N) and the protective earth conductor (PE).

Specified value > 1 MΩ.

Perform HV-AC circuit protective ground conductor and insulation resistance measurement (vehicle socket measuring point) at the charger feed-in socket (X58/23)

Perform protective ground conductor and insulation resistance measurement

ECE charger feed-in socket (CCS2) (direct current)

DC-

DC current minus connection

DC+

DC current plus connection

PE

Protective earth conductor

X58/23

Charger feed-in socket

P47.70-A068-05

Perform protective ground conductor and insulation resistance measurement

SAE charger feed-in socket (CCS1) (direct current)

DC-

DC current minus connection

DC+

DC current plus connection

PE

Protective earth conductor

X58/23

Charger feed-in socket

P47.70-A069-05

Perform protective ground conductor and insulation resistance measurement

Japan charger feed-in socket (CHAdeMO) (direct current)

DC-

DC current minus connection

DC+

DC current plus connection

PE

Protective earth conductor

X58/23

Charger feed-in socket

P47.70-A065-05

Perform protective ground conductor and insulation resistance measurement

China charger feed-in socket (GB/T-DC) (direct current)

DC-

DC current minus connection

DC+

DC current plus connection

PE

Protective earth conductor

X58/23

Charger feed-in socket

P47.70-A066-05

19

Calibrate resistance/insulation resistance tester.

20

Open socket flap

When the vehicle has been de-energized, the socket flap can only be opened using the diagnostic system.

21

Open cover of charger feed-in socket (X58/23).

22

Set resistance/insulation resistance tester to resistance testing mode.

23

Perform resistance test using resistance/insulation resistance tester between the protective ground conductor (PE) and the ground point of the protective earth conductor on the exhaust gas turbocharger.

Specified value < 1 (+0.9) Ω

24

Set resistance/insulation resistance tester to the insulation resistance test and 500 V.

25

With a test voltage of 500 V at the insulation resistance tester, perform the insulation/resistance measurement between the direct current minus connection (DC-) and the protective earth conductor (PE).

Specified value > 1 MΩ.

26

With a test voltage of 500 V at the insulation resistance tester, perform the insulation/resistance measurement between the direct current plus connection (DC+) and the protective earth conductor (PE).

Specified value > 1 MΩ.

Perform protective ground conductor and insulation resistance measurement

Charging cable (3) HVAC-circuit 1-phase

3

Charging cable

L1

Phase L1

LN

Neutral conductor

PE

Protective earth conductor

P54.10-3956-06

Insulation resistance measurement/resistance measurement HVAC-circuit 1-phase (measuring point of charging cable (3))

27

With a test voltage of 500 V at the insulation resistance tester, perform the insulation/resistance measurement at one of the two connectors of the charging cable (3) between phase L1(L1) and the protective earth conductor (PE).

Specified value > 1 MΩ.

28

With a test voltage of 500 V at the insulation resistance tester, perform the insulation/resistance measurement at one of the two charging cable connectors (3) between the neutral conductor (N) and the protective earth conductor (PE).

Specified value > 1 MΩ.

Perform protective ground conductor and insulation resistance measurement

Charging cable (3) HVAC-circuit 3-phase

3

Charging cable

L1

Phase L1

L2

Phase L2

L3

Phase L3

LN

Neutral conductor

PE

Protective earth conductor

P54.10-3957-06

Insulation resistance measurement/resistance measurement HVAC-circuit 3-phase (measuring point of charging cable (3))

29

With a test voltage of 500 V at the insulation resistance tester, perform the insulation/resistance measurement at one of the two connectors of the charging cable (3) between phase L1(L1) and the protective earth conductor (PE).

Specified value > 1 MΩ

30

With a test voltage of 500 V at the insulation resistance tester, perform the insulation/resistance measurement on one of the two connectors of the charging cables (3) between phase L2 (L2) and the protective earth conductor (PE).

Specified value > 1 MΩ.

31

With a test voltage of 500 V at the insulation resistance tester, perform the insulation/resistance measurement on one of the two connectors of the charging cables (3) between phase L3 (L3) and the protective earth conductor (PE).

Specified value > 1 MΩ.

32

With a test voltage of 500 V at the insulation resistance tester, perform the insulation/resistance measurement at one of the two charging cable connectors (3) between the neutral conductor (N) and the protective earth conductor (PE).

Specified value > 1 MΩ.

Referenced documents