2.10.7.6 Bursts (electrical fast transients) (see R 60-1, 5.7.2.5 Disturbances)

This test is conducted to verify compliance with the provisions in R 60-1, 5.7.2.5 during conditions where electrical bursts are superimposed on the mains voltage.

Applicable standards:

IEC 61000-4-4 [19]: No. 5 (Test 2+| severity), No. 6 (Test instrumentation), No. 7 (Test set-up), No. 8 (Test procedure).

Test method

Introducing transients on the mains power lines

Test conditions

In accordance with 2.7.3.1 Environmental conditions

Preconditioning of load cell

Stabilise load cell under constant environmental conditions

Test level

Level 3 in accordance with referenced standard: IEC 61000-4-4 No.5

Open circuit output test voltage for:

  • power supply lines: ;

  • I/O signal, data, and control lines: .

Test load

The test shall be performed with no load or with one small test load

(10 v).

Test procedure in brief

This test consists of exposing the load cell to specified bursts of voltage spikes.

A burst generator as defined in the referred standard [IEC 61000-4-4 Ed 3.0 (2012-04)] shall be used. The characteristics of the generator shall be verified before connecting the EUT.

The test shall be applied separately to:

  1. power supply lines;

  2. I/O circuits and communication lines, if any.