What is the cable resistance of a lite cable?

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Enhance your knowledge of NMEA 2000 standards. Study with interactive questions, hints, and explanations, tailored to gear you up for the exam. Excel in marine electronics!

Multiple Choice

What is the cable resistance of a lite cable?

Explanation:
Cable resistance per meter is set by the conductor’s material and its cross‑section. A lite (smaller gauge) copper conductor has a smaller cross‑section, so its resistance per meter is higher than heavier gauge cable. For typical lite NMEA 2000 cable, the conductor is about 22 AWG, which yields roughly 0.053–0.057 ohms per meter at 20°C. The value 0.057 ohms per meter is the best match for this lite cable, while much lower values would require a thicker wire, and a much higher value would indicate an unusually small conductor. Temperature can nudge the exact number a bit, but 0.057 ohms per meter is the standard reference.

Cable resistance per meter is set by the conductor’s material and its cross‑section. A lite (smaller gauge) copper conductor has a smaller cross‑section, so its resistance per meter is higher than heavier gauge cable. For typical lite NMEA 2000 cable, the conductor is about 22 AWG, which yields roughly 0.053–0.057 ohms per meter at 20°C. The value 0.057 ohms per meter is the best match for this lite cable, while much lower values would require a thicker wire, and a much higher value would indicate an unusually small conductor. Temperature can nudge the exact number a bit, but 0.057 ohms per meter is the standard reference.

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