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But the USB charger manufacturers could do better by shutting down the output should arcing/sparking be detected. We already have this for 120V AC supplies, and

by argb 6y ago

But the USB charger manufacturers could do better by shutting down the output should arcing/sparking be detected. We already have this for 120V AC supplies, and it should be doable for 5V DC. https://en.wikipedia.org/wiki/Arc-fault_circuit_interrupter https://en.wikipedia.org/wiki/Arc-fault_circuit_interrupter

smileypete 6y ago
>But the USB charger manufacturers could do better by shutting down the output should arcing/sparking be detected. A poor connection at a plug can (or will?) cause a hot spot without arcing, and for a long thin cable a short may not even trigger the overcurrent protection of a high power charger. Best to buy a cable with a decent 'AWG rating' eg 24AWG, either from a reputable brand like Tronsmart, or a specialist supplier, in the UK there's Kenable: https://www.kenable.co.uk/en/ https://www.kenable.co.uk/en/