On electric railways using a third rail power supply, like most subways and the South London commuter lines, if the snow reaches the height of the live rail it can short-circuit it . ( Overhead-wire power supplies are immune to this, but more vulnerable to wind.
22.
The two fought right over a live rail and took advantage of the electricity to shock each other while fighting in light-saber effect mortal combat; Kham knocked out No . 2 and confronted LC . To Kham's surprise, LC is highly trained and marked himself as No . 00.
23.
The third rail is an alternative to overhead lines that transmit power to trains by means of 25 kV or more, using alternating current ( AC ), the smaller clearance around a live rail imposes a maximum of about 1500 V ( Line 4, Guangzhou Metro, Line 5, Guangzhou Metro, Longgang Line, Shenzhen Metro ), and direct current ( DC ) is used.
