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UL 2049 OUTLINE
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UL 2049 OUTLINE 2006 Edition, June 21, 2006 Outline of Investigation for Residential Pipe Heating Cable
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Description / Abstract:
This outline covers residential pipe heating cable intended to
reduce the likelihood of water freezing in exposed pipes of
residences. These devices are considered appliances in accordance
with Article 422 of the National Electrical Code, NFPA 70.
Cable units employing different heating conductors, insulation, or other forms of construction may be examined and tested in accordance with the intent of this outline, and if found to be substantially equivalent, may be covered.
Residential pipe heating cables may be installed on metal or rigid plastic pipes. Plastic pipes are considered to have a maximum long-term thermal exposure limit of 50°C absolute.
These heating cables are limited to applications where they are not exposed to weather unless additionally evaluated for outdoor use.
Cable units employing different heating conductors, insulation, or other forms of construction may be examined and tested in accordance with the intent of this outline, and if found to be substantially equivalent, may be covered.
Residential pipe heating cables may be installed on metal or rigid plastic pipes. Plastic pipes are considered to have a maximum long-term thermal exposure limit of 50°C absolute.
These heating cables are limited to applications where they are not exposed to weather unless additionally evaluated for outdoor use.