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Surface Pressure Distribution Map of the MOV Blocks Contacting Each Other
Fujifilm Prescale® pressure indicating sensor film is a diagnostic tool used for troubleshooting and maintenance. It reveals surface pressure distribution and magnitude between the MOV-blocks and the terminations in your high power arrestor application.
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Why
- Longevity of the arrestor is greatly improved when a lightening strike’s current is homogeneously distributed across the entire surface area of each of the MOV contacts.
- Total device failure can occur if there is insufficient pressure holding the stack together.
- Current limited by high pressure “hot spots” reduces the protection level of the arrestor.
- Using Fujifilm Prescale® ensures proper compression load level as well as distribution of that load (uniformity).
- Fujifilm Prescale® sensor film applied during testing and analysis helps ensure a maximally performing protection device.
To ensure long arrestor lifetime, the MOV’s disks need to be sufficiently compressed together to withstand multiple lightening strikes.
| Pressure Film Type | Code | Alternative Code | Pressure Range | Order Now |
| Ultra Extreme Low | 5LW | UXL310 | 0.87 – 7.3 PSI (0.06 – 0.51 kg/cm2) | Order Now |
| Extreme Low | LLLLW / 4LW | XL310 | 7.2 – 28 PSI (0.5 – 2 kg/cm2) | Order Now |
| Ultra Low | LLLW | UL270 | 28 – 85 PSI (2 – 6 kg/cm2) | Order Now |
| Super Low | LLW | SL270 | 70 – 350 PSI (5 – 25 kg/cm2) | Order Now |
| Low | LW | L270 | 350 – 1,400 PSI (25 – 100 kg/cm2) | Order Now |
| Medium | MS | M270 | 1,400 – 7,100 PSI (100 – 500 kg/cm2) | Order Now |
| High | HS | H270 | 7,100 – 18,500 PSI (500 – 1,300 kg/cm2) | Order Now |
| Super High | HHS | SH270 | 18,500 – 43,200 PSI (1,300 – 3,000 kg/cm2) | Order Now |
| Physical Specifications | |
| Operating Temperature | 68°F – 95°F (20°C – 35°C) much higher for brief exposure |
| Humidity Range | 20% to 90% RH |
| Gauge (Thickness) | 4 – 20 mils |
| Spatial Resolution | From 5 – 15 microns |
| Substrate | Polyethylene Terephthalate (PET) |
| Accuracy | ± 10% visual, ± 2% Utilizing optional optical measurement systems |
| Shelf Life | 1 Year |