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Dunno.
"Quad" usually refers to the shielding (such as TV antenna coaxial cable), "CAT" usually refers to four-pair twisted pair.
"CATn" (CAT3~CAT6) is four-pair, twisted-pair, unshielded cabling most commonly used in Ethernet computer network cabling.
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What is ampacity of 25mm cable at 250 volts?
The amperage rating is dependent upon the insulation rating. A pair of 25mm squared wires touching each other are rated at 131 amps. Three 25mm squared wires touching each other are rated at 110 amps.
WHAT ARE THE RATING OF RING MAIN UNIT?
The normal rating of a UK ring circuit in a domestic system using 2.5 mm2 cable in a ring is 30 amps.
How do you figure your celsius rating for wire sizing?
The ambient insulation rating of wires and cables is imprinted on the wire and cables. The labels on the cables will tell you the wire size, number of conductors and temperature rating of the wires and cables. The higher the cable and wire temperature ratings the higher the amount of current that is allowed to be drawn by the wire and cable according to the electrical code book.
What size wire for a 1500 amp service?
There are two main options. A triple run or a quad run in parallel. For a triple run, a 700 MCM copper conductor with an insulation rating of 90 degrees C is rated at 520 amps. For a quad run, a 400 MCM copper conductor with an insulation rating of 90 degrees C is rated at 380 amps.
How do you determine messenger wire size?
The messenger in triplex and quad is already determined by the wire size that is wrapped around it. It is the maximum span distance that you should find for the size of over head cable that is being used.
