ISO 9001:2008ISO 9001
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EPR Performance Specifications

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The insulation shall be a premium quality, heat, moisture, ozone and corona resistant thermosetting ethylene propylene; TYPE I, II or III as listed in ICEA S-93-639 or ICEA S-97-682. The cable manufacturer shall compound the insulation material with in its own or remotely owned facilities. The insulation shall be compatible with both the conductor shield and the insulation shield. The thickness shall be at the 100% or 133% level as applicable and in accordance with the latest edition of ICEA. 

S-93-639, ICEA S-97-682 and UL 1072. The diameters over the insulation shall be in accordance with ICEA S-97-682. The EPR insulation shall also meet the guaranteed values as listed in the table below.

Unaged Tensile strength, psi, min. 1600
Elongation at rupture, %, min. 275
Tensile Stress at 200% elongation
psi, min. at room temperature
Modulus, psi, min. @ 130°C 300
After Air Oven Aging at
121°C for 7 days (168 hours)
Tensile stress, % of unaged value, min. 90
Elongation at rupture, % of unaged value, min. 90
Hot Creep Test at 150°C Elongation, %, max. 25
Set, %, max. 5
Heat Distortion after 1 hour
in air oven at 121°C
Percent max. 8.5
Ozone Resistance 0.030% Concentration, 25°C, 24 hours No Cracks
0.0005% Concentration, 52°C, 24 hours No Cracks
Cold Bend -55°C No Cracks
Heat Deformation Test
per ASTM D2220
% Max. Distortion of buffed samples of insulation
 conditioned for 5 minutes and under load for 15 minutes
No Cracks

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