Applications: TSX self-regulating heating
cables are for water freeze protection or process temperature maintenance up to 250°F
(121°C) and where elevated cold start currents are unacceptable. TSX
cables are approved for ordinary (non-hazardous) and Division (2) hazardous (classified)
areas. The heat output of TSX cable varies in response to its temperature. TSX cables are
rated for nominal heat outputs of 3, 6, 9, or 12 watts per foot at 50°F (10°C) when
connected to either 120 or 240 VAC. TSX cables intended for use on 240 VAC operation may
also be operated on 208 or 277 VAC.
Construction:
Nickel Plated Copper Bus Wires (16 AWG)
Semi-conductive Heating Matrix
Fluoropolymer Insulating Jacket
Nickel-Plated copper braid (BN)
Options:
Over jacket
(OJ), includes nickel-plated braid (BN). Increases durability and provides corrosion protection for metallic braid.
Monitor wire (MC) is used to monitor the continuity
of the bus wires.
Ratings:
Maximum continuous exposure temperature:
............ Power ON ........................................................ 250°F
(121°C)
............ Power OFF ...................................................... 375°F
(191°C)
Minimum installation temperature: ............................... -60°F (-51°C)
Minimum bending radius ......................................... 1.25 in. (32 mm)
T-rating¹ .................................................................... T-3,
392°F (200°C)
Note:
Standards associations have established the
T-rating as a means of classifying electrical equipment based on the maximum temperature
an exposed surface may attain. The purpose of the T-rating is to insure that electrical
equipment does not exceed the auto-ignition temperatures of flammables handled in a
hazardous (classified) area.
Applications: TEK series resistance heating
cables are used where circuit lengths exceed the limitations of parallel resistance
heating cables. TEK cables can provide tracing for pipes up to 12,000 feet long with one
power supply point. Available with two and three conductors, TEK circuits can be arranged
in a variety of configurations.
Construction:
Nickel Plated Copper Bus Wires (16 AWG)
Fluoropolymer Insulation
Fluoropolymer Insulating Jacket
Nickel-Copper braid
Options:
Fluoropolymer over jacket (OJ), includes nickel-copper
braid. Increases cable durability and provides additional protection for braid in
applications where corrosive chemical solutions or vapors may be present.
Ratings:
Maximum maintenance temperature¹
.............................. 150°F (66°C)
Minimum installation temperature: ................................... -60°F (-51°C)
Maximum exposure temperature ...................................... 400°F (204°C)
...(cable de-energized)
Rated Voltage² .................................................................... For
operation up to 600 VAC
Notes:
Watt density limitations are correlated to
maintenance temperatures.
Definition as stated in IEEE 515 1989:
Specific voltage depends on circuit length and design conditions.