Seaward Powercheck 1557 PAT/Installation Tester Checker

The Seaward Powercheck 1557 PAT/Installation Tester Checker is an extremely useful checkbox which can be used with any PAT tester or electrical installation tester. It conforms to all pertinent regulations including BS7671, EN 61577 and the IEE Code of Practice. It can perform numerous tests to verify the performance of testers and is also compliant with NICEIC and IET standards.

Colour-coded test functions make the Seaward Powercheck 1557 an easy instrument to operate so it is straightforward to verify PAT tests such as full earth continuity, insulation resistance, RCD trip time, RCD trip current, loop, PE conductor current, touch current and flash test. The checker has sturdy briefcase-style housing which enables it to stand up to poor weather conditions and other day-to-day challenges.

Key Features

• Full earth continuity
• Insulation resistance 
• RCD trip time 
• RCD trip current
• Loop testing
• PE conductor current 
• Touch current
• Flash test

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 < 1500 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 5 Irn verification

Voltage Verification

• Test Voltage 240V AC rms test output

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

General

• 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.