What is a characteristic of cables that are used in articulating equipment arms?

Question

Options

• Afiber-optic zip-cord construction
• Bshielded copper twisted pair
• Chigh flex rated cable
• Dtype PLTC cable

• A
  7% (2)
• C
  89% (25)
• D
  4% (1)

Explanation

Cables used in articulating equipment arms must withstand thousands of repetitive bending and flexing cycles without breaking, which is why high flex rated cable (C) is the correct choice - these cables are specifically engineered with stranded conductors and flexible jacketing to handle constant motion without fatigue failure. Fiber-optic zip-cord (A) is rigid and designed for stationary runs, making it prone to cracking under repeated articulation. Shielded copper twisted pair (B) is optimized for signal integrity, not mechanical flexibility, and will fail prematurely in high-motion applications. Type PLTC (Power-Limited Tray Cable) (D) is a raceway/tray installation cable rated for fixed routing, not dynamic movement.

Memory tip: Think "articulating = flex" - any time equipment moves, the cable must flex. The word "articulating" itself (meaning jointed/moving) is your clue to select a cable rated for mechanical endurance over signal type or installation category.

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