1) please avoid caps lock! (netiquette) 2) "The definition of high voltage depends on the context of the discussion. Two factors considered in the classification of a "high voltage" are the possibility of causing a spark in air, and the danger of electric shock by contact or proximity. In electric power transmission engineering, high voltage is usually considered any voltage over approximately 35,000 volts. This is a classification based on the design of apparatus and insulation. The International Electrotechnical Commission and its national counterparts (IET, IEEE, VDE, etc.) define high voltage circuits as those with more than 1000 V for alternating current and at least 1500 V for direct current, and distinguish it from low voltage (50–1000 V AC or 120–1500 V DC) and extra low voltage (<50 V AC or <120 V DC) circuits. This is in the context of the safety of electrical apparatus. In the United States 2005 National Electrical Code (NEC), high voltage is any voltage over 600 V (article 490.2). British Standard BS 7671:2008 defines high voltage as any voltage difference between conductors that is higher than 1000 V AC or 1500 V ripple-free DC, or any voltage difference between a conductor and Earth that is higher than 600 V AC or 900 V ripple-free DC. The general public may consider household mains circuits (100–250 V AC), which carry the highest voltages they normally encounter, to be high voltage. For example, an installer of heating, ventilation and air conditioning (HVAC) equipment may be licensed to install 24 Volt control circuits, but may not be permitted to connect the 240 volt power circuits of the equipment. Voltages over approximately 50 volts can usually cause dangerous amounts of current to flow through a human being touching two points of a circuit, so safety standards generally are more restrictive where the chance of contact with such high voltage circuits exists. In digital electronics, a high voltage is the one that represents a logic 1; this may be only several hundred millivolts for some logic families. The definition of extra high voltage (EHV) depends on the context of the discussion. In electric power transmission engineering this refers to equipment designed for more than 235,000 volts between conductors. A power supply that provides an e.m.f. greater than 275,000 volts is known as an "EHV Power Supply". It is often used in experiments in physics. The accelerating voltage for a television cathode ray tube may be described as "extra high voltage" or "extra-high tension" (EHT), as compared to other voltage supplies within the equipment. This type of supply ranges from 15 kV to 35 kV." Source and further information: http://en.wikipedia.org/wiki/High_voltage

direct current is more deadly and flows in one direction alternating current reverses 60 times a second to prevent death because too many people where shocked and with direct current your muscles contract

Hi Friends, I Want to kmow that, is there any equipment used in 24V AC or stepdown by 240V AC to 24V AC. In any equipment?