nVent RAYCHEM HTV Self-Regulating Heating Cable Instruction Manual

RATCHEM
HTV
CONNECT AND PROTECT

 Self-regulating heating cable

HEATING CABLE CONSTRUCTION

The nVent RAYCHEM HTV self-regulating heating cable is designed for freeze protection or process temperature maintenance of pipes and vessels with very high continuous operating temperatures (205°C).
Maximum exposure temperature is 260°C.
The HTV cable has a solid construction with a high power retention (HPR) heating core and pressure extruded electrical insulation. It is then integrated with a robust metallic braid and a chemically resistant fluoropolymer outer jacket.
The innovative heating core technology and design result in:

• Superior thermal conductivity
• Super stable power output for long operational life
• Ease of stripping, flexing and installation
• Long circuit lengths for minimized total installation cost

Power retention: At least 95% after 10 years of simulated product life at maximum continuous operating temperature (205°C).
Certified for use in hazardous and ordinary areas and comes with a 10 year product warranty programme.
Design life: 30 years or more depending on application.

APPLICATION

Area classification| Hazardous, Zone 1, Zone 2 (Gas), Zone 21, Zone 22 (Dust) Ordinary
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Traced surface type| Carbon steel Stainless steel Painted or unpainted metal
Chemical resistance| Organics aqueous inorganic chemicals and corrosives

SUPPLY VOLTAGE

230 Vac (Contact nVent for data on other voltages 190-277 Vac)

APPROVALS

PTB 21 ATEX 1003 X
II 2 G Ex 60079-30-1 IIC T3…T2 Gb Ta = –60°C to +56°C
II 2 D Ex 60079-30-1 IIIC T3…T2 Db Ta = –60°C to +56°C
Temperature class and ambient temperature range of the system may vary. Refer to the installation instructions or hazardous area approval for details about the components.
IECEx PTB 21.0007X
Ex 60079-30-1 IIC T3…T2 Gb Ta = –60°C to +56°C
Ex 60079-30-1 IIIC T3…T2 Db Ta = –60°C to +56°C
Temperature class and ambient temperature range of the system may vary. Refer to the installation instructions or hazardous area approval for details about the components.

| Approval for CIS region pending
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| Approval for China pending

SPECIFICATIONS

Maximum cumulative exposure 2000 hours()
()  Longer periods allowed between 205-260°C. Contact nVent.
Temperature classification| 215°C (T2): 20HTV2-CT
T3: 3HTV2-CT, 5HTV2-CT, 8HTV2-CT, 10HTV2-CT, 12HTV2-CT, 15HTV2-CT
Based on systems approach*| T3-T6

• Approved for the listed temperature classifications by using the principles of stabilized
  design (as per system classification approach) or the use of a temperature limiting device.
  Use TraceCalc design software or contact nVent.
  Minimum installation temperature| –60°C
  Bus wire size| 2.3 mm²
  Heating cable dimensions (nominal)| 11.5 mm x 6.9 mm
  Weight (nominal)| 170 g/m
  Minimum bend radius| 25 mm at –60°C ≤ T < –20°C
  20 mm at –20°C ≤ T < –10°C
  15 mm at –10°C ≤ T < +10°C
  13 mm at  T ≥ +10°C
  Design life| 30 years or more depending on application
  Power retention| At least 95% after 10 years of simulated product life at maximum continuous operating temperature (205°C).

THERMAL OUTPUT RATING

Nominal power output at 230 Vac on insulated steel pipes

Part description| Nominal
power output
(W/m at 10°C)| See chart
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20HTV2-CT| 64| A
15HTV2-CT| 48| B
12HTV2-CT| 38| C
10HTV2-CT| 32| D
8HTV2-CT| 25| E
5HTV2-CT| 16| F
3HTV2-CT| 9| G

MAXIMUM CIRCUIT LENGTH BASED ON TYPE ‘C’ CIRCUIT BREAKERS ACCORDING TO EN

60898

| Start- p Temp.| Electrical protection sizing / Maximum heating cable length per circuit (m)
---|---|---
aCS| WIC-!,| WCS.| ffitSh| fil,6,1
3HTV2-CT| 10°C| 197| 246| 293| 293| 293
0°C| 189| 237| 293| 293| 293
-20°C| 168| 210| 262| 293| 293
-40°C| 155| 193| 241| 293| 293
5HTV2-CT| 10°C| 146| 183| 224| 224| 224
0°C| 138| 172| 215| 224| 224
-20°C| 126| 158| 197| 22,4| 224
-40°C| 116| 145| 181| 224| 224
8HTV2-CT| 10°C| 106| 132| 16r,| 173| 173
0°C| 100| 125| 157| 173| 173
-20°C| 92| 115| 143| 173| 173
-40°C| 84| 105| 132| 169| 173
10HTV2-CT| 10°C| 90| 112| 140| 152| 152
0°C| 86| 108| 135| 152| 152
-20°C| 79| 99| 123| 152| 152
-40°C| 72| 91| 113| 145| 152
12HTV2-CT| 10°C| 78| 97| 121| 138| 138
0°C| 74| 93| 116| 138| 138
-20°C| 67| 84| 105| 134| 138
-40°C| 62| 77| 97| 124| 138
15HTV2-CT| 10°C| 61| 76| 95| 119| 119
0°C| 58| 72| 90| 115| 119
-20°C| 53| 6C| | 105| 119
-40°C| 48| 60| 75| 96| 113
20HTV2-CT| 10°C| 46| 58| 72| 92| 99
0°C| 44| 55| 69| 88| 95
-20°C| 40| 50| 63| 81| 88
-40°C| 37| 46| 58| 74| 82

The above numbers are for circuit length estimation only. The maximum circuit length is for one continuous length of cable, not the sum of segments of cable. For more detailed information please use the nVent TraceCalc design software or contact your local nVent representative. nVent requires the use of a 30 mA residual current device to provide maximum safety and protection from fire. Where design results in higher leakage current, the preferredtrip level for adjustable devices is 30 mA above any inherent capacitive leakage characteristic of the heater as specified by the trace heater supplier or alternatively, the next common available trip level for non adjustable devices, with a maximum of 300 mA. All safety aspects need to be proven.

ORDERING DETAILS

COMPONENTS

nVent offers a full range of com po nents for power connections, splices and end seals.
These components must be used to ensure proper func tion ing of the product and com pli ance with electrical requirements.

North America
Tel +1.800.545.6258
Fax +1.800.527.5703
thermal.info@nVent.com| Europe, Middle East, Africa
Tel +32.16.213.502
Fax +32.16.213.604
thermal.info@nVent.com
---|---
Asia Pacific
Tel +86.21.2412.1688
Fax +86.21.5426.3167
cn.thermal.info@nVent.com| Latin America
Tel +1.713.868.4800
Fax +1.713.868.2333
thermal.info@nVent.com

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©2021 nVent. All nVent marks and logos are owned or licensed by nVent Services GmbH or its affiliates. All other trademarks are the property of their respective owners.
nVent reserves the right to change specifications without notice.
RAYCHEM-DS-EU1750-HTV-EN-2104
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References

• Electrical Heat Tracing | Heat Tracing | nVent RAYCHEM
• HTV Self-Regulating Heating Cable | nVent RAYCHEM
• Verify

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