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9 Posts in this encyclopedia categoryUL Listing Mark for "listed cables & wires"
Use of these cables and wires for fixed wiring in buildings for residential, commercial and industrial use. Listed cables and wires must not only meet UL product standards, but must also be used in accordance with the appropriate articles of the National Electrical Code (NEC). Listed cables and wires can be used for factory wiring of electrical equipment, appliances, apparatus and machinery as well as for field wiring of industrial machinery and equipment in accordance with NFPA 79. Approval mark on the product: (UL) = UL Listing mark. (All information without guarantee)
Ultraviolet radiation
This invisible radiation is the area of the spectrum of electromagnetic waves that adjoins the visible range (UV radiation). (All data without guarantee)
Unbalance damping
Criterion for evaluating the stranding of wire pairs with symmetrical transmission. (All data without guarantee)
UNE harmonisation marking
Asociacion Electrotecnica y Electronica Espanola (AEE). Spain. Certification body (All information without guarantee)
Universal cable ties
Universal cable ties are coloured or transparent fastening elements (usually made of nylon) that can be used to fasten individual wires, cables and wires in bundles. Their internal toothing makes a permanent connection possible.
Unshielded twisted pair
Symmetrical twisted pair cables with twisted-pair, unshielded cores without overall shield. (All data without guarantee)