BS EN 55011:2009 pdf download

BS EN 55011:2009 pdf download.Industrial, scientific and medical equipment一Radio-frequency disturbance characteristics – Limits and methods of measurement.
Group 2 equipment: group 2 contains all ISM RF equipment in which radio-frequency energy in the frequency range 9 kHz to 400 GHz is Intentionally generated and used or only used. In the form of electromagnetic radiation, inductive and/or capacitive coupling, for the treatment of material or inspection/analysis purposes
NOTE S.. Annex A for .xarnpl.s of the ;.palabon of equm.nI into group 1 or 2
5.3 DivisIon Into classes
Class A equipment is equipment suitable for use in all establishments other than domestic and those directly connected to a low voltage power supply network which supplies buildings used for domestic purposes.
Class A equipment shall meet class A limits.
Warning: Class A equipment Is intended for use in an industrial environment. In Ihe documentation for the user, a statement shall be included drawing attention to the fact that there may be potential difficulties in ensuring electromagnetic compatibility In other environments, due to conducted as well as radiated disturbances.
Class B equipment is equipment suitable for use in domestic establishments and in establishments directly connected to a low voltage power supply network which supplies buildings used for domestic purposes
Class B equipment shall meet class B limits.
6 LImits of electromagnetic disturbances
6.1 General
Class A equipment may be measured either on a test site or in situ, as preferred by the manufacturer
NOTE I Due to size, complesity or operating condition., come equipment may hav, to be m.asur.d in citu in order to show compliance with tfle radiation disturbance ilmits speciried herein
Class B equipment shall be measured on a test site
NOTE 2 Th. limit, hsv. be.n determined on a probabdisbc basis taking into account the likelinood of inlerterenc. in c.i.a ot int.rf.renc., additional provisions may be required
The lower limit shall apply at all transition frequencies.
Excluded from the testing requirements and limits of this standard are components and subassemblies not intended to perform any stand-alone ISM function
Measuring apparatus and methods of measurement are specified In Clauses 7, 8 and 9.
6.2 Group 1 equIpment measured on a test site
6.2.1 LImits of t.rmlnal disturbance voltage
6.2.1.1 General
The equipment under test shall meet either:
a) both the average limit specified for measurements with an average aetector ana me quasi- peak limit specified for measurements with a quasi-peak detector (see 7.3); or
b) the average limit when using a quasi-peak detector (see 7.3).
For medical electrical equipment intended to be permanently installed in shielded locations, further provisions with regard to the measurement arrangement and load conditions are found in IEC 60601-1-2.
6.2.2.4 Frequency range 1 GHz to 18 GHZ
For group 1 equIpment, no limits apply in the frequency range I GHz to 18 GHz.
6.2.2.5 Frequency range 18 0Hz to 400 0Hz
For group 1 equipment, no limits apply in the frequency range 18 GHz to 400 GHz,
6.3 Group 2 equipment measured on a test site
6.3.1 Limits of terminal disturbance voltage
6.3.1.1 General
The equipment under test shall meet either:
a) both the average limit specified for measurements with an average detector and the quasi- peak limit specified for measurements with a quasi-peak detector (see 7.3); or
b) the average limit when using a quasi-peak detector (see 7.3).
6.3.1.2 Frequency range 9 kHz to 150 kHz
In the frequency range 9 kHz to 150 kHz. limits for mains terminal disturbance voltages apply to induction cooking appliances Only, see Table 8.
6.3.1.3 Frequency range 150 kHz to 30 MHz
Limits for mains terminal disturbance voltages in the frequency range 150 kHz to 30 MHz for equipment measured on a test site using the 50 W50 H CISPR network or the CISPR voltage probe (see 73.3 and Figure 4) are given in Tables 6 and 7, except for the ITU designated frequency bands listed In Table 1 where no limits apply.
For electric welding equipment, the limits of Table 6 or 7 apply in active mode of operation. In stand-by (or idle) mode, the limits of Table 2 or 3 apply.
For ISM RF lighting devices operating in dedicated ISM frequency bands (defined by the ITU in Table 1). the limits of Table 7 apply.
For Induction cooking appliances for domestic or for commercial use, the limits of Table 8 apply.