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Insulation Performance Specifications
ies-appendix-insulation-performance-specifications
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TRXLPE Performance Specifications
Suitable for use for the following specifications
- AEIC CS8
- ICEA S-94-649
- ICEA T-31-610
- ICEA T-34-664 as applicable for TRXLPE insulated concentric neutral cable
- UL 1072 MV-90 or MV-105
- CSA Standard C68.5-07
ICEA T-34-664 as applicable for TRXLPE insulated concentric neutral cable must conform to the following chart:PHYSICAL PROPERTIES
UNIT
TEST METHOD
VALUE
Density(Base Resin)
g/cm3
ASTM D1505
0.921
Tensile Strength
kg/ cm2
ASTM D638
200
Elongation
%
ASTM D638
550
Oven Aging @ 135 ℃, 7 days
Tensile Strength Retention
%
ASTM D638
> 90
Elongation Retention
%
ASTM D638
> 90
Hot/Set @ 200℃, 20N/cm2
IEC-60811-2-1
Hot Elongation
%
< 100
Permanent Set
%
< 5
Cure Behavior @ 180℃ (MDR)
HCY-I-24196
Ts1
minute
> 1
Tc90
minute
< 5
Mh-MI
lb・in
> 4.5
Moisture
ppm
HCY-I-24205
< 200
ELECTRICAL PROPERTIES
UNIT
TEST METHOD
VALUE
Dielectric Constant @ 1 MHz
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ASTM D150
< 2.3
Dissipation Factor @ 1 MHz
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ASTM D150
< 0.0005
Dielectric Strength
kV/mm
ASTM D149
> 20
DC Volume Resistivity
ohm cm
ASTM D257
> 1016
TREE RESISTANCE
UNIT
TEST METHOD
VALUE
Relative Bow-tie Tree Size
%
Internal
< 15
Resistance to Water Tree
Growth @25℃, 30days
%
Internal
< 0.1
1. Tree test conditions: Frequency=1kHz, Applied Voltage=5kV, 0.01M NaCl Solution.2. Values are typical : not to be construed for specification.
Updated 1/4/2022
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EPR Performance Specifications
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.
PHYSICAL REQUIREMENTS GUARANTEED
VALUEUnaged Tensile strength, psi, min. 1600 Elongation at rupture, %, min. 275 Tensile Stress at 200% elongation
psi, min. at room temperature1000 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°CPercent 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
