Epoxy pipe manufacturers explain the common thickness standards of SMC insulation boards in detail

Epoxy pipe manufacturers explain the common thickness standards of SMC insulation boards in detail:

What is the main product of SMC insulation board, I believe everyone has a certain understanding, the common thickness and national standards of SMC insulation board are the focus of today, as follows:

1. Thickness of insulation board:

More than 5 different points should be randomly selected for thickness measurement and inspection on the entire insulation board. Measurements can be made using a microcentre or an instrument of equal precision. The accuracy of the micrometer should be within 0.02mm, the diameter of the test drill should be 6mm, the diameter of the flat presser foot should be (3.17±0.25) mm, and the presser foot should be able to apply a pressure of (0.83±0.03) N. The insulating pad should lie flat so that there is smoothness between micrometer measurements.

2. National standard of insulating board:

When the voltage of the power distribution room is 10KV, the power frequency withstand voltage test of 8mm thickness is 10000V, and there is no breakdown in 1 minute, and the power frequency withstand voltage test is 18000V, and the breakdown is 20 seconds. The voltage of the power distribution room is 35KV, the thickness of 10-12mm, the power frequency withstand voltage test is 15000V, and there is no breakdown in 1 minute, and the power frequency withstand voltage test is 26000V, and the breakdown is 20 seconds. The power frequency withstand voltage test is 3500V under 5mm thickness and 500V in the power distribution room, and it will not break down in 1 minute. In the power frequency withstand voltage test of 10000V, it will not break down in 20 seconds!