Several years ago, it was decided that the existing numbering of the generic standards would be changed to fall into line with the new numbering system devised by CENELEC and the IEC. The new system sees the generic standards incorporated within the EN 61000 series of standards which most manufacturers will be familiar through the EN 61000-4-x series of basic standards. The generic standards will form the EN 61000-6-x series as summarised below.
| Standard | Title | New number | DOW |
|---|---|---|---|
| EN50081-1:1992 | Emission requirements for the RCLI environment | EN61000-6-3:2001 | 01/04/04 |
| EN50081-2:1993 | Emission requirements for the I environment | EN61000-6-4:2001 | 01/04/04 |
| EN50082-1:1997 | Immunity requirements for the RCLI environment | EN61000-6-1:2001 | 01/04/04 |
| EN50082-2:1995 | Immunity requirements for the I environment | EN61000-6-2:1999 | 01/04/02 |
Three of the four generic standards have two things in common. Firstly the DOW was in April 2004 and secondly that there are only minor changes between the different versions of the standards.
The fourth standard, Industrial Immunity (EN 50082-2:1995, now EN 61000-6-2:1999) differs in both respects. Firstly, the DOW was some 2 years before the others, being April 2002 and secondly there are significant changes to its requirements.
Because of the date of publication of EN 50082-2, some of the basic standards were either not published themselves or were not included. This was also the path taken by the RCLI immunity standard, EN 50082-1 when it was re-issued in 1997. It too incorporated the new basic standards developed since its original publication date of 1992.
A summary of the changes is given below. As always the actual standard should be consulted for the definitive requirements.
| Test | Standard | Summary of changes |
|---|---|---|
| ESD | EN61000-4-2 | None |
| Radiated | EN61000-4-3 | None |
| EFT/B | EN61000-4-4 | All signal port test levels are now ±1kV Introduction of functional earth port |
| Surge | EN61000-4-5 | New test, applicable to AC, DC & signal ports |
| Conducted RF | EN61000-4-6 | None |
| Power frequency magnetic fields | EN61000-4-8 | New test, applicable to equipment containing devices susceptible to magnetic fields |
| Voltage dips & interruptions | EN61000-4-11 | New test, applicable to AC power ports |
