The insulation resistance value between the conductive part of the quality 12v 5 pin relay and the non-conductive metal part (such as the iron core) and the shell, and between the conductive parts that are not electrically connected. When measured under normal atmospheric conditions, the rated insulation If the voltage is equal to or less than 60V, it should be no less than 400MΩ; if the rated insulation voltage is greater than 60V, it should be no less than 300MΩ. Under the condition of a maximum temperature of 40℃, after two cycles of damp heat test, the insulation resistance value should not be less than 5MΩ if the rated insulation voltage is equal to or less than 60V; if the rated insulation voltage is greater than 60V, it should not be less than 4MΩ.

After the quality 12v 5 pin relay is subjected to the damp and heat test, it needs to be able to accept 75% of the test value of the medium pressure test specified in paragraph 2.7.1 in the damp and heat box.

The conductive part of the quality 12v 5 pin relay should be able to withstand the non-conductive metal part (such as the iron core) and the shell, and between the conductive parts that are not electrically connected. If the dielectric withstand voltage test value is 2000V, it should be able to withstand After the impulse voltage test with amplitude of 5kV, there was no insulation damage afterwards. During the experiment, a flashover that does not cause damage is allowed. After the experiment, the relay should meet the rules.

The electrical clearance outside the housing of the quality 12v 5 pin relay should not be less than 4mm, and the creepage interval of the insulating surface should not be less than 6mm.