Gmw TG UNI 1AVDE-tester DIN VDE 0701/ 0702 61000 00200 Benutzerhandbuch

The sequence of tests is specified in the standard:

The test objects are inspected for externally visible defects.

(with devices of protection class I)

The limit value is:
0.3  Ω

Ω

Ω

Ω

Ω for devices with connecting cables up to 5 m,

plus 0.1 

Ω for every 7.5 m, but a mximum of 1.0 Ω.

The limit value is:
1 MΩ

Ω

Ω

Ω

Ω for devices of protection class I

2 MΩ

Ω

Ω

Ω

Ω ffor devices of protection class II 

1)

0.25 MΩ

Ω

Ω

Ω

Ω for devices of protection class III

0.3 MΩ

Ω

Ω

Ω

Ω for devices of protection class I

with switched-on heating elements 

2)

1)

Also applies for touchable conductive parts of test objects in
protection class I  that are not  connected to the protective conductor.

2)

If the required insulation resistance is not achieved in the case of  test objects in
protection class I with heating elements with a total capacity 

≥

 3.5 kW, the test object

is nevertheless rated as faultless if  the protective conductor current does not exceed
the limit values.

Measuring principle circuit
protective conductor resistance PC I, Diagram M1

Tester

Test  object

Test  line

Measuring principle circuit
Insulation resistance PC I, Diagram M2

PC II and III, Diagram M3

Tester

Test
object

Test line

&

&

&

&

&

If the insulation measurement is technically impossible, then a
protective conductor current measurement (direct or differential
current method) must be carried out on test objects in PC I and a
touch current measurement on test objects in PC II.

17

Conducting tests in accordance with VDE 0701 and 0702 - definition of standards

´Probe´
 socket

Test socket

Test line

Test socket

Test  socket

´Probe´
socket

´Probe´
socket