SPECT-SET SPECTRA/POLYESTER DOUBLE BRAID ROPE
SPECT-SET Spectra/Polyester Double Braid rope has very little degradation from UV and can be used outside over long term if inspected regularly.
Good resistance to most minerals/organics, acids and weak alkalis. Excellent resistance to bleaches and other oxidizing agents and to most solvents.
Polyester’s melting point is 480°F, progressive strength loss above 300°F. Spectra’s ® melting point is 300°F, progressive strength loss above 150°F.
Polyester and the Spectra® Core fiber have good resistance to passage of electrical current. However, in rope form, dirt, surface contaminants, water entrapment and the like can significantly affect dielectric properties. Extreme caution should be exercised any time a rope is used in proximity to live circuits.
Recommended D/d ratio is 8:1.
No blanket working load recommendation can be made because it depends on the application and conditions of use, especially potential danger to personnel. It is recommended that the user establish working loads and safety factors based on professional and experienced assessments of risks.
The working load is a guideline for the use of a rope in good condition for non-critical applications and should be reduced where life, limb, or valuable property are involved, or for exceptional service such as shock, sustained loading, severe vibration, etc. The Cordage Institute specifies that the Safe Working Load of a rope shall be determined by dividing the Minimum Tensile Strength by the Safety Factor. Safety factors range from 5 to 12 for non-critical uses.