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Apple Lightning to USB-A cable. Lightning is an 8-pin digital connector. Unlike the 30-pin dock connector it replaced (and USB Type-A and -B connectors), it is reversible. [23] Most Lightning devices only support USB 2.0, which has a maximum transfer speed of 480 Mbit/s or 60 MB/s. With USB 2.0, only one lane is in use at a time.
On 2 February 2022, a power cable collapsed in Kinshasa, Democratic Republic of the Congo, killing 26 people. The accident occurred at a market in Matadi-Kibala on the outskirts of the capital of the DRC. The cable fell onto houses and shoppers, with the live end landing in a ditch that was filled with rain from earlier in the day.
However, lightning can also create dangerous voltage gradients in the earth, as well as an electromagnetic pulse, and can charge extended metal objects such as telephone cables, fences, and pipelines to dangerous voltages that can be carried many miles from the site of the strike.
Positive lightning is less common than negative lightning and on average makes up less than 5% of all lightning strikes. [ 10 ] A bolt from the blue lightning strike which appears to initiate from the clear, but [ clarification needed ] the turbulent sky above the anvil cloud and drive a bolt of plasma through the cloud directly to the ground.
A power cable is an electrical cable, an assembly of one or more electrical conductors, usually held together with an overall sheath. The assembly is used for transmission of electrical power . Power cables may be installed as permanent wiring within buildings, buried in the ground, run overhead, or exposed.
Lightning connectors are 9-pins, both referred to by Apple in their code and technically evaluated. The difference between 8 and 9 pin is significant because you will need 9-pins to implement USB-3 standard. Lightning is a "smart cable" which means it can dynamically reassign pin configurations.
Arcing horns and lightning arresters are necessary because lightning strikes to the mast are common. Guy wires supporting antenna masts usually have strain insulators inserted in the cable run, to keep the high voltages on the antenna from short circuiting to ground or creating a shock hazard.
The Australia Singapore Cable (ASC) is a 4,600 km fibre-optic submarine communications cable that entered service in September 2018, linking Australia and Singapore via Christmas Island and Indonesia.