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Special antiskid insulating rubber plate for distribution room
The detection cycle of insulating rubber sheet is one year, and some are five years;
1. Composition of insulating rubber sheet:
The key of insulating rubber sheet is rubber insulating layer material, which is made of NR, SBR and IIR non-polar vulcanized rubber with high dielectric strength.
2. Insulation pad features:
There should be no harmful irregularity on the left and right surfaces of insulating rubber sheet.
The irregularity of harm refers to one of the following characteristics, that is, the defects of destroying symmetry and smooth surface, such as small round hole, gap, partial protrusion, wound, mixed conductive dirt, crease, gap, convex concave wavy pattern and forging mark, etc.
Harmless irregularity refers to the surface irregularity produced in the production process. The cost-effective insulating rubber sheet has no odor, bubble and dent, and its surface is clean and clean
3. Insulation pad thickness measurement:
The thickness measurement and inspection shall be carried out at five different points on all insulating rubber sheets. Vernier calipers or instruments with the same accuracy can be used for measurement. The accuracy of vernier caliper should be within 0.02mm, the diameter of drill is 6mm, and the diameter of presser foot in plan is (3.17mm) ± 25) mm, the presser foot should be able to release (0. 83 0 ± 03) n. the insulation pad should be placed flat so that the middle of vernier caliper measurement is smooth.
There should be no harmful irregularity on the left and right surfaces of insulating rubber sheet. The irregularity of insulation pad damage refers to one of the following characteristics, that is, the defects of destroying symmetry and smooth surface, such as small round hole, gap, partial protrusion, wound, mixed conductive dirt, crease, convex concave wavy pattern and forging mark, etc.