30μm-1.5mm holiday detector 3-digit LCD porosity detector pinhole tester
Attached Table for Detection Voltage
Anti-corrosion Material | Thickness of Anti-corrosion Coating (mm) | Detection Voltage (KV) | Remarks |
Epoxy Coal Tar | 0.2
0.4 0.6 0.8 |
4-5KV or self-defined | Perform according to standard (if provided) |
Oil Asphalt | 2
3 5.5 7 9 |
11
15 18 20 24 |
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Polyethylene Adhesive Tape | Based on: 3249TC=V conversion formula
V: voltage; TC: thickness of anti-corrosion coating Perform according to SY4014-92 Acceptance Standard |
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Glass Lining | Determine detection voltage according to previous experience.
Generally, it is 8KV~20KV. |
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Other Anti-corrosion Materials | Detect voltage according to the design of design department or material insulation |
