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| NEMA XXX is a good electrical insulator with good mechanical strength and high humidity resistance; good dimensional stability, and excellent resistance to splitting. It can be used for panel boards, high voltage switchgear, and other electronic panels. |
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An electrical grade of paper laminate impregnated and cured with phenolic resin. |
Sheet sizes 36 x 72, 36 x 48, 48 x 48, 48 x 96, and 48 x 108 in. thicknesses .031 in to 2 in.; cut and fabricated per drawing . |
Natural |
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Density |
81 lbs/ft3 - .047 lbs/in3 |
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Maximum operating temperature |
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electrical |
284° F (140° C) |
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mechanical |
284° F (140° C) |
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Water absorption |
0.5% |
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Hardness (Rockwell M) |
110 |
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Compressive strength |
38,000 psi |
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Tensile strength |
20,000 psi |
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Flexural strength |
23,000 psi |
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Shear (flatwise) |
12,000 psi |
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Impact strength - Izod edgewise with grain |
0.8 ft-lb/in |
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Dielectric strength |
475 vpm |
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Dielectric constant (@ 106 cycles per second) |
4.9 |
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Volume resistivity |
3 x 107 |
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Arc resistance |
124 sec |
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Parallel dielectric |
65kv |
