產(chǎn)品描述：
The PowerCheck 1557 is a comprehensive PAT and installation verification checkbox. It carries out ongoing performance checks to ensure accurate measurement between calibration intervals. Fully tests Earth Continuity, Insulation Resistance, RCD Trip Time, RCD Trip Current, Loop, PE Conductor Current, Touch Current and Flash tests.
It can be used on earth continuity or earth bond testers up to 25A and also verifies loop impedance or RCD testers on RCD protected circuits - without tripping the RCD. It tests to BS 7671, BS EN 61557, IET Onsite Guide and IEE Code of Practice. It has full instrument verification against all relevant standards and confirms performance between verifications (this is information required by NICEIC, ELECSA, Corgi and others).
技術(shù)參數(shù)：
PowerCheck 1557
Technical Specification
INSTALLATION TEST INSTRUMENTS
Earth Continuity Verification
|
Test current in |
>200mA indication |
|
Test voltage |
4V < Un > 24V indication |
|
Test resistances |
0.5ohm and 2ohm |
Insulation Resistance Verification
|
Open circuit test voltage |
250V < Un < 375V indication |
|
|
500V < Un < 750V indication |
|
|
1000V < Un < 1500V indication |
|
Test current In |
>1mA into 1000ohm/V |
|
Max test current |
Ik <2mA |
|
Test resistances |
0.25Mohm, 0.5Mohm, 1.0Mohm |
Earth Loop Verification
|
Test values |
Loop, Loop+1ohm, Loop+180ohm |
RCD Verification
|
Trip current |
10mA, 30mA, 100mA |
|
Trip Times |
20ms, 40ms, 500ms |
|
Test current multiplier |
1/2rn, Irn and 5Irn verification |
Voltage Verification
|
Test Voltage |
240V AC rms test output |
PAT FUNCTIONS
Earth continuity verification
|
Test resistances |
0.2ohm and 2ohm |
Insulation Resistance verification
|
Test resistances |
500kohm, 1Mohm and 2Mohm |
PE Conductor current
|
Test currents* |
0.1mA, 0.25mA and 0.5mA |
Flash Test current
|
Test currents* |
0.5mA, 1mA and 1.5mA |
ADDITIONAL INFORMATION
|
Power supply |
230V AC ±10% |
|
Dimensions / Weight |
210mm x 145mm x 85mm / 1kg |
*actual values are dependent upon mains supply voltage. Tabulated values for mains voltages of 210V to 250V are supplied with the instrument.
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