For 4-pair UTP cables, the bend radius should be at least how many times the cable diameter?

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Multiple Choice

For 4-pair UTP cables, the bend radius should be at least how many times the cable diameter?

Explanation:
Bend radius is the minimum curve size a cable can be bent without harming its structure or performance. For 4-pair UTP cables, you want to keep bends at least four times the cable’s diameter. That extra room helps preserve the twisted-pair geometry, maintain consistent impedance, and prevent microbending or kinking that can raise losses or crosstalk. In practice, measure the cable’s outer diameter and ensure any bend or loop has a radius of at least four times that measurement. If the diameter is about 6 mm, the bend radius should be around 24 mm. The other options are too tight (2×) or unnecessarily conservative (6×, 8×) for standard 4-pair UTP installations.

Bend radius is the minimum curve size a cable can be bent without harming its structure or performance. For 4-pair UTP cables, you want to keep bends at least four times the cable’s diameter. That extra room helps preserve the twisted-pair geometry, maintain consistent impedance, and prevent microbending or kinking that can raise losses or crosstalk. In practice, measure the cable’s outer diameter and ensure any bend or loop has a radius of at least four times that measurement. If the diameter is about 6 mm, the bend radius should be around 24 mm. The other options are too tight (2×) or unnecessarily conservative (6×, 8×) for standard 4-pair UTP installations.

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