An Insulation Resistance Test is a diagnostic procedure used to evaluate the integrity and effectiveness of the insulation in electrical equipment. It is a test to ensure electrical systems’ safety, reliability, and longevity by detecting insulation degradation or failures that could lead to short circuits, equipment damage, or electrical hazards.The test is conducted to check the insulation resistance of the luminaire components. This is measured with a DC voltage of approximately 500V, 1 min after the application of the voltage. For the insulation of SELV parts of luminaires, 100V DC voltage is used. Compliance with the BS EN 60598-1 standard is met if the insulation resistance is no less than the values specified in BS EN 60598-1.
Insulation Resistance Test
Electric Strength Test
The Electric Strength Test is a procedure used to determine the maximum voltage that an insulating material can withstand without breaking down. This test is essential for verifying the integrity and robustness of insulation in electrical components and systems.
A specified voltage dependent on product classification is applied for 1 minute across the insulation. Compliance with the BS EN 60598-1 standard is met if no flashover or insulation breakdown occurs during the electric strength test.
Earth Bond Conductivity Test
The Earth Bond Conductivity Test evaluates the electrical connection between exposed metal parts of the luminaire and ground (Earth). This test ensures that in case of a fault, current can safely flow through the earth bond, grounding the appliance to prevent electric shock or equipment damage.
A current of 10 Amps at 12 Volts AC is applied for 60 seconds. Compliance with the BS EN 60598-1 standard is met if the resistance of metal parts to earth does not exceed 0.5 Ohms.
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