N42158QE080 - Attachment A.docx
DOCX document 20 KB Posted
- Attached to
- HEAT TRACING STRIP, TAPE (Amendment 00001)
- Solicitation number
- N4215826QE080
About this file
This is a technical specifications document (Attachment A) for heat tracing tape required by Norfolk Naval Shipyard (NNSY) in Portsmouth, VA. The specification details a self-regulating heat tracing strip/tape model SRL 51CR manufactured by Chromalox (P/N: 382758) that operates at 115/120 volts AC, 60 cycles, single phase with a heat output of 5 watts per foot at 50 degrees Fahrenheit. The tape must be flat and ribbon-type with a maximum width of 1/2 inch, constructed with minimum 16 AWG copper or coated copper buss wires and a shield of 14 AWG equivalent copper or tinned copper braid. The outer jacket must be polyolefin or polyolefin-modified material with minimum 0.010 inch thickness, and both inner and outer jackets must be continuous without defects that expose the heating core.
The heating core must feature a positive temperature coefficient for self-regulation, capable of maintaining constant temperature across a minimum of 250 linear feet, field-cuttable without cold spots, and overlappable at power outlets without damage. The tape must not exceed 160 degrees Fahrenheit in any ambient temperature and is suitable for heavy industrial outdoor marine environments with watertight jackets. Additional requirements include the ability to bend 180 degrees in a 1-inch radius at 10 degrees Fahrenheit without cracking insulation, minimum 400 megohms per 1000 linear feet insulation resistance after 24-hour water immersion, and capability to withstand 2500-volt dielectric testing for a minimum of 1 minute following all bend, water immersion, and aging tests. This is a sole-source acquisition requiring direct procurement from Chromalox or its authorized distributors with no substitutes permitted.
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Other files
| File | Type | Posted |
|---|---|---|
| Solicitation Amendment - N4215826QE0800001.pdf | ||
| Solicitation Amendment N4215826QE0800001 SF 30.pdf | ||
| N42158QE080 - Attachment C -Technical Capability Statement.docx | DOCX document | |
| Solicitation - N4215826QE080.pdf | ||
| N42158QE080 - Attachment B - Continuation Sheet.docx | DOCX document |
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Text version
ATTACHMENT-A
Heat Trace Tape Technical Ordering Data 4540-LL-R83-0065 (rev-17 of MIF)
HEAT TRACING STRIP, TAPE, 5 WATT, SELF REGULATING:
SHALL OPERATE WITH 115/120 VOLTS AC, 60 CYCLES, SINGLE PHASE.
HEAT OUTPUT SHALL BE 5 WATTS PER FOOT AT 50 DEGREES F.
MUST BE A FLAT, RIBBON TYPE, TAPE, WITH A MAXIMUM WIDTH OF 1/2 INCH ACROSS OUTER JACKET.
BUSS WIRES SHALL BE A MINIMUM 16 A.W.G. COPPER OR COATED COPPER WIRE.
MUST HAVE A SHIELD OVER THE INNER JACKET MADE OF COPPER OR TINNED COPPER BRAID, 14 A.W.G. EQUIVALENT.
MUST HAVE AN OUTER JACKET OF POLYOLEFIN OR POLYOLEFIN MODIFIED TO MEET THE REQUIREMENTS OF THIS SPECIFICATION AND HAVE A MINIMUM THICKNESS OF .010 INCH.
BOTH INNER AND OUTER JACKETS MUST BE CONTINUOUS WITHOUT NICKS, CUTS, OR CRACKS WHICH EXPOSE THE HEATING CORE.
SELF-REGULATING HEATING CORE MUST HAVE A POSITIVE TEMPERATURE COEFICIENT WHICH CAUSES ITS RESISTANCE TO INCREASE WITH AN INCREASE IN TEMPERATURE.
MUST BE CAPABLE OF REGULATING AND MAINTAINING A MINIMUM OF 250 LINEAR FEET OF TAPE AT A CONSTANT TEMPERATURE.
MUST BE CAPABLE OF BEING FIELD-CUT TO LENGTH AT ANY POINT WITHOUT CREATING COLD SPOTS.
MUST BE CAPABLE OF BEING OVERLAPPED OR CROSSED AT ALL POWER OUTLETS WITHOUT DAMAGE TO THE HEATER.
SHALL NOT EXCEED 160 DEGREES F WHEN INSTALLED IN ANY AMBIENT TEMPERATURE.
MUST BE SUITABLE FOR HEAVY INDUSTRIAL APPLICATION IN AN OUTDOOR MARINE ENVIRONMENT.
JACKETS MUST BE WATERTIGHT.
TAPE MUST BE CAPABLE OF BEING BENT A MINIMUM OF 180 DEGREES IN A 1-INCH RADIUS AT 10 DEGREES F WITHOUT CRACKING THE INSULATION.
RESISTANCE OF THE INNER AND OUTER JACKETS MUST BE A MINIMUM OF 400 MEGOHMS PER 1000 LINEAR FEET AFTER THE TAPE HAS BEEN IMMERSED IN WATER FOR A MINIMUM OF 24 HOURS.
MUST BE CAPABLE OF WITHSTANDING A 2500 VOLT DIELECTRIC TEST FOR A MINIMUM DURATION OF 1 MINUTE AFTER ALL BEND TESTS, ALL WATER IMMERSION TESTS, AND ALL AGING TESTS HAVE BEEN COMPLETED.
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