Safety; Insulation Resistance; Dielectric Strength; Leakage Current - NEC MultiSync LCD1700NX A Service Manual

3. Safety

3.1 Insulation Resistance

The resistance of the insulation between the power terminal and the earth ground contact is more the
10M ohms while withstanding a voltage of 500Vdc.

3.2 Dielectric Strength

There is no breakdown of the insulators or short circuits when applying an alternating potential of
1000Vac for a duration of 1(one) minute or 1500Vac for a duration of 2(two) second at 50Hz between
the metallic chassis and the input power supply active and neutral terminals connected together.

3.3 Leakage Current

The current conducted between each of the power supply's contacts is less than 1.5mA at 255Vac
(60Hz) and 0.25mA at 100Vac (60Hz).

3.4 Ground Continuity

The resistance between the groundside of the power cord and the accessible metal parts located in
ground circuit shall not exceed 0.1 ohm at current load of 25mA.
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