Elec­tro­mag­netic com­pat­i­bil­ity test­ing in EMC lab EN 61326 – 1

EN 61326‒1:2006 Elec­tri­cal equip­ment for mea­sure­ment, con­trol and lab­o­ra­tory use-​EMC require­ments Part 1: Gen­eral require­ments

Scope
Inter­na­tional stan­dard EN 61326‒1:2006 is applic­a­ble for elec­tri­cal equip­ment, oper­at­ing from bat­ter­ies or mains net­work with esti­mated volt­age up to 1000V AC or 1500V DC intended to be used for pro­fes­sional, indus­trial or non­in­dus­trial, man­u­fac­tur­ing, edu­ca­tional pur­poses, includ­ing equip­ment for:
  • tests and measurements;
  • con­trol;
  • lab­o­ra­tory use;
  • acces­sories intended to be used for upper men­tioned equipment.
Inter­na­tional stan­dard EN 61326‒1:2006 also is applic­a­ble for:
  • equip­ment used in res­i­den­tial, com­mer­cial and light indus­trial envi­ron­ments, as described in EN 61000‒6‒1;
  • equip­ment intended to be used in indus­trial locations;
  • equip­ment to be used in lab­o­ra­to­ries with a con­trolled elec­tro­mag­netic environment;
  • portable test and mea­sure­ment equipment.
Clas­si­fi­ca­tion
Inter­na­tional stan­dard EN 61326‒1:2006 for clas­si­fi­ca­tion of equip­ment it cov­ers, have a ref­er­ence to inter­na­tional stan­dard EN 55011:2009, that sep­a­rates all equip­ment in two groups– Group 1 and Group 2, each group is sub­di­vided in two classes– class 1 and class 2.

Group 1- cov­ers all devices that are not cov­ered by group 2
Group 2- cov­ers devices that inten­tion­ally gen­er­ates RF energy in fre­quency range 9kHz-​400GHz, that is used in form elec­tro­mag­netic radi­a­tion, induc­tive cou­pling, capac­i­tive cou­pling for mate­r­ial analy­sis or inspec­tion.
Class A- cov­ers devices for usage in all estab­lish­ments other than domes­tic and that are not directly con­nected to a low volt­age power sup­ply net­work, which sup­plies domes­tic envi­ron­ment.
Class B- cov­ers devices for usage in domes­tic estab­lish­ments that are directly con­nected to a low volt­age power sup­ply net­work, which sup­plies domes­tic envi­ron­ment.

If class A require­ments are applied, then fol­low­ing or sim­i­lar warn­ing shall be included in the instruc­tions for use:
Warn­ing
This is a class A prod­uct. In a domes­tic envi­ron­ment this prod­uct may cause radio inter­fer­ence in which case the user may be required to take ade­quate measures.

Exam­ples
Elec­tri­cal mea­sure­ment and test equip­ment, that records or indi­cates one or more elec­tri­cal or non-​electrical quan­ti­ties– ana­lyz­ers, gen­er­a­tors, power sup­plies, trans­duc­ers.

Equip­ment which con­trols one or more out­put quan­ti­ties to spe­cific val­ues– indus­trial process mea­sure­ment and con­trol equip­ment includ­ing, con­trollers, reg­u­la­tors, power sup­plies and power sys­tems, actu­a­tors, indi­ca­tors posi­tion­ers, shak­ers.

Lab­o­ra­tory equip­ment, that mea­sures or mon­i­tors sam­ples or is used to pre­pare sam­ples. Also in vitro equip­ment used in indus­trial premises and lab­o­ra­to­ries or domes­tic premises.

Require­ments
Con­ducted emis­sion require­ments for mains ports and telecom­mu­ni­ca­tion ports must be met in fre­quency range 150kHz-​30MHz.
Radi­ated emis­sion require­ments must be met in fre­quency rage 30MHz-​1GHz.

Elec­tro­sta­tic dis­charge (ESD) immu­nity.
Elec­tro­mag­netic field immu­nity.
Power fre­quency mag­netic field immu­nity.
Volt­age dip and short inter­rup­tion immu­nity at power ports.
Elec­tri­cal fast tran­sients– burst immu­nity.
Surge immu­nity.
Con­ducted radio fre­quency immu­nity.

Lim­its
Immu­nity
Test Port Level Per­for­mance Level Per­for­mance
Non– indus­trial Indus­trial
Elec­tro­sta­tic discharge Enclosure 4kV air and con­tact discharge B 4kV/​8kV air and con­tact discharge B
Elec­tro­mag­netic field Enclosure 80MHz– 1GHz 3V/​m
1,4GHz-2GHz 3V/​m
2GHz-2.7GHz 1V/​m		 A
A
A		 80MHz– 1GHz 10V/​m
1,4GHz-2GHz 3V/​m
2GHz-2.7GHz 1V/​m		 A
A
A
Power fre­quency mag­netic field Enclosure Not applicable – 30A/​m A
Volt­age dips AC power 0% 0.5 cycle
0% 1 cycle
70% 25 cycle
0% 250 cycle		 B
B
C
C		 0% 1 cycle
40% 10 cycle
70% 25 cycle
0% 250 cycle		 B
C
C
C
Burst AC power 1kV B 2kV B
DC power 1kV B 2kV B
Signal 0.5kV B 2kV B
Surge AC power 0.5kV(line-​line) /​1kV(line-​GND) B 1kV(line-​line) /​2kV(line-​GND) B
DC power 0.5kV(line-​line) /​1kV(line-​GND) B 1kV(line-​line) /​2kV(line-​GND) B
Signal 1kV B 1kV B
Con­ducted radio frequency AC power 150kHz-​80MHz 3V A 150kHz-​80MHz 3V A
DC power 150kHz-​80MHz 3V A 150kHz-​80MHz 3V A
Signal 150kHz-​80MHz 3V A 150kHz-​80MHz 3V A

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