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Usměrňovačové systémy DC-Měniče Střídače UPS systémy ...

Vydal: BENNING CR, s.r.o. Autor: BENNING

Strana 204 z 247

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ith leakage curren clam p BE 9). The easurem ent ade ith ains lt­ age both positions (L/N N/L) the ains plug. the cable ith the lliga tor clip can connected another easuring point itho resulting in incorrect easurem ents indications. For easurem ents according DIN VDE 0701-0702, diffe rent easuring rran gem ent shall applied than easurem ents according to DIN 0751-1 (derived fro IEC 60601-1).BENNING A Insulating resistance lnsu: DIN 0751-1 (protection classes l-ll) / A type F BEN 750 lia Tester 1 ohm eter (MQ) 2 gene rator 500V) 3 "Probe" jack 4 sam ple 5 socket 10. T hree -phase devices shall supplied via corresponding adap ters (see chap ter ptio nal A cce ssories").g. the determ ined easured value are entered the corresponding menu (B 750 A), they ill listed the test record well. 21 58 . uring pause, th ill rem ain live! 10. can easured eans the follow ing ethods: differential curren easurem ent Diff direct curren easurem ent Dir (test sam ple ust placed onto insulated surface!) altern ative leakage curren easurem ent Alt differential curren direct curren easurem ent Clamp (e.3 Leakage Current Measurement D epending the devices (test sam ples), leakage currents lPE protective cond uctor current, lCont contact current, lLeak device leakage current, PLeak patient leakage curren etc. easurem ent ade ith ains volta both positions (L/N N/L) the ains plug pressing <L/N> <N/L>. ing le-phase devices can supplied via the test socket.g. elete the easured value by pressing <Reset>. A tten tion! ressing <Pause> button ill stop easurem ent.3.1 Leakage Current Measurement Differential Current Measurement Method (Diff) I (Clamp) A grea adva ntage the differential curren easurem ent ethod the device (test sam ple) does not have placed onto insulated surface. Finish stop the easurem ent pressing <Stop>. corresponding easuring rran gem ent ill be activated auto atically depending the preselection (DIN 0701 -0702 0751). By pressing pause button (<Pause> <Next>), possible interru easurem ent that e