UL 83 specifications
Samples Dimensions Specifications:
Sample
number
AWG
Crosssectional
area
1
14
2.5
2
14
3
14
4
14
5
14
Construction
Insulation Insulation Insulation
thickness thickness thickness
(average)
(min)
(max)
Mm
mm
mm
Diameter
(mm)
Area
(mm²)
7X0.6153
1.8459
2.0809
0.381
0.3302
2.5
7X0.6153
1.8459
2.0809
0.381
2.5
7X0.6153
1.8459
2.0809
2.5
7X0.6153
1.8459
2.5
7X0.6153
1.8459
Insulation
Material
color
0.4064
THHN
PVC/A
BK
No
-
-
2.6579
0.3302
0.4064
THHN
PVC/A
RD
No
-
-
2.6579
0.381
0.3302
0.4064
THHN
PVC/A
any
Yes
0.1016
0.127
2.9279
2.0809
0.762
0.6858
0.8382
THW
PVC/A
RD
No
-
-
3.4199
2.0809
0.762
0.6858
0.8382
THW
PVC/A
BK
No
-
-
3.4199
6
300 grams of pellets of PVC compound A in natural color
7
200 grams of pellets of the Nylon Jacket compound B in natural color

Insulation Insulation
Over All
Nylon thickness thickness
Diameter
Jacket B
(min)
(max)
(mm)
mm
mm
Type
Long-term insulation resistance (IR) testing e in air at 97 ±1°C:
Type of insulation
Test type
Standard
Constant Temperature
(°C)
Humidity
%
Period of test
(weeks)
Periodic
Measurements
Typical values for
1000 V D.C
(GΩ. m or MΩ.Km)
PVC/A
LTIR
UL83
60 - 125
≥ 90
12 - 36
Per week
≥3

Short-term insulation resistance at elevated temperature in water 75°C
Type of insulation
Test type
Standard
Constant Temperature (°C)
Period of test
(weeks)
Typical values for 1000 V
D.C
(GΩ. m or MΩ.Km)
PVC/A
STIR
UL83
at rating temperature of the
insulation
after immersion in
water for 6h
≥ 0.030

Tests are to be conducted in accordance with UL 83, Thermoplastic-Insulated Wires and cables:
Before Aging
Sample #
Tensile
Mpa
1
After Aging
Conductor
resistance
Ω/Km
at (20°C)
Insulation resistance in
water at 15° C
(MΩ.Km or GΩ.m)
FV-1 Vertical Flame
Elongation %
Tensile
Mpa
Elongation %
13.5
150
-
-
8.45
<205
-
2
13.8
150
-
-
8.45
<205
-
3
13.5
150
10.125
97.5
8.45
<205
5 times 15 sec, No ignite or
ignite till 60 sec only
4
13.8
150
10.125
97.5
8.45
<175
5 times 15 sec, No ignite or
ignite till 60 sec only
5
13.8
150
10.125
97.5
8.45
<175
5 times 15 sec, No ignite or
ignite till 60 sec only
Durability of Ink Print
1st sample in forced air in
oven at Rated.T for 24h / 2nd
sample at R.T for 24 h
1st sample in forced air in
oven at Rated.T for 24h / 2nd
sample at R.T for 24 h
1st sample in forced air in
oven at Rated.T for 24h / 2nd
sample at R.T for 24 h
1st sample in forced air in
oven at Rated.T for 24h / 2nd
sample at R.T for 24 h

Continue tests
Permittivity
Sample #
Flexibility
1
-
2
-
immersed in water 24h at the wetrated temperature, 60°C, 75°C, or
90°C
<10
immersed in water 24h at the wetrated temperature, 60°C, 75°C, or
90°C
<10
at 121°C, 7d aged, 4 turns around mandrel
8mm
4
at 121°C, 7d aged, 4 turns around mandrel
8mm
5

Heat Shock Test
At136°C, 7d aged, 4 turns around mandrel
8mm
3
The capacitance after immersion
for 14 d shall not be more than 10
percent higher than the
capacitance after 24 h immersion.
The capacitance after immersion
for 14 d shall not be more than 10
percent higher than the
capacitance after 24 h immersion.
-
immersed in water 24h at the wetrated temperature, 60°C, 75°C, or
90°C
<10
immersed in water 24h at the wetrated temperature, 60°C, 75°C, or
90°C
<10
The capacitance after immersion
for 14 d shall not be more than 10
percent higher than the
capacitance after 24 h immersion.
The capacitance after immersion
for 14 d shall not be more than 10
percent higher than the
capacitance after 24 h immersion.
-
conditioning in an air-circulating
oven for 1 h to a temperature of
121 ±1°C / 4 turns around mandrel
3mm
conditioning in an air-circulating
oven for 1 h to a temperature of
121 ±1°C / 4 turns around mandrel
3mm
conditioning in an air-circulating
oven for 1 h to a temperature of
121 ±1°C / 4 turns around mandrel
3mm
Continue tests
Cold Bend Test
Abrasion
Impact Resistance
Crush Resistance
-
-
-
-
-
-
-
-
800 cycle with force 3.3 KN
steel weight that impacts with
an energy of 2.7 J (2 ft-lbs)
upon the insulation and nylon
jacket (if present)
1000N crushing conductor /
same as tensile test properties
-
-
-
-
-
-
After conditioning at a temperature of −25
±1°C, (−40 ±1°C optional) for 4 h (4 turns
around mandrel 8mm in rate; 4turn/s)
After conditioning at a temperature of −25
±1°C, (−40 ±1°C optional) for 4 h (4 turns
around mandrel 8mm in rate; 4turn/s)
After conditioning at a temperature of −25
±1°C, (−40 ±1°C optional) for 4 h (4 turns
around mandrel 8mm in rate; 4turn/s)

Capacitance
Chemical Tests.
Sample 6
Infrared
Spectroscopy (IR
Scan)
Sample 7
Determination of the Ash
Content
Elemental Analysis
<1%
Chemical analysis
of hazardous
substances
Infrared Spectroscopy
(IR Scan)
THERMOGRAVIMETRIC ANALYSIS –
TGA
DIFFERENTIAL
SCANNING
CALORIMETRY – DSC
PVC, Char yield 5-15%(Td) 150-250°C
hazardous
materials % such
as (PCBs)
hazardous materials %
such as (PCBs)
Nylon Jackets, Char yield: 10-25% (Td)
250-350°C
Tg Temperature

Dielectric AC Voltage Withstand in Water UL 83, Clause 5.23
Water preparation
Test setup
Immerse the specimen in a tank of water, ensuring that the water level is at least 2 inches (50
mm) above the highest point of the insulation. Connect the conductor of the specimen to one
electrode of the test apparatus and the water tank to the other electrode.
water with a
temperature of 25°C ±
3°C in Tank
Voltage
Application
Duration
Specified,
gradually 500V/s
One
Minute
Summarizing the test voltages for common insulation types and conductor sizes:
Insulation Type
Conductor Size (AWG)
Test Voltage (V)
PVC
18-16
1500
PVC
14-10
2000
PVC
8-4
2500
PVC
2-0
3000
XLPE
18-16
1200
XLPE
14-10
1500
XLPE
8-4
2000
XLPE
2-0
2500
EPR
18-16
1000
EPR
14-10
1200
EPR
8-4
1500
EPR
2-0
2000
Criteria
Pass/Fail
OK