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Undergrounding
An underground power line provides electrical power with underground cables. Compared to overhead power lines, underground lines have lower risk of starting a wildfire and reduce the risk of the electrical supply being interrupted by outages during high winds, thunderstorms or heavy snow or ice storms. An added benefit of undergrounding is the aesthetic quality of the landscape without the powerlines. Undergrounding can increase the capital cost of electric power transmission and distribution but may decrease operating costs over the lifetime of the cables. History Early undergrounding had a basis in the detonation of mining explosives and in undersea telegraph cables. Electric cables were used in Russia to detonate mining explosives in 1812, and to carry telegraph signals across the English Channel in 1850. With the spread of early electrical power systems, undergrounding began to increase as well. Thomas Edison used underground DC “street pipes” in his early electr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Electric Power Transmission
Electric power transmission is the bulk movement of electrical energy from a generating site, such as a power plant, to an electrical substation. The interconnected lines that facilitate this movement form a ''transmission network''. This is distinct from the local wiring between high-voltage substations and customers, which is typically referred to as electric power distribution. The combined transmission and distribution network is part of electricity delivery, known as the electrical grid. Efficient long-distance transmission of electric power requires high voltages. This reduces the losses produced by strong currents. Transmission lines use either alternating current (AC) or direct current (DC). The voltage level is changed with transformers. The voltage is stepped up for transmission, then reduced for local distribution. A wide area synchronous grid, known as an ''interconnection'' in North America, directly connects generators delivering AC power with the same rela ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Direct-buried Cable
Direct-buried cable (DBC) is a kind of communications or transmissions electrical cable which is especially designed to be buried under the ground without any other cover, sheath, or duct to protect it. Most direct-buried cable is built to specific tolerances to heat, moisture, conductivity, and soil acidity. Unlike standard telecommunications and power cables, which have only a thin layer of insulation and a waterproof outer cover, DBC consists of multiple layers of heavy metallic-banded sheathing, reinforced by heavy rubber covers, shock absorbing gel, wrapped thread-fortified waterproof tape, and stiffened by a heavy metal core. DBC is preferable in some areas since it is more resistant to being the focus of lightning discharges. Communications Most cable of this kind is coaxial or bundled fiber-optic cable. In the 20th century much of it was filled cable. Direct-buried cable is cheaper and easier to lay than other kinds of cable that require protection from the earth. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Electromagnetic Radiation And Health
Electromagnetic radiation can be classified into two types: ionizing radiation and non-ionizing radiation, based on the capability of a single photon with more than 10 electronvolt, eV energy to ionize atoms or break chemical bonds. Extreme ultraviolet and higher frequencies, such as X-rays or gamma rays are ionizing, and these pose their own special hazards: see ''radiation poisoning''. The field strength of electromagnetic radiation is measured in volts per meter (V/m). The most common health hazard of radiation is sunburn, which causes between approximately 100,000 and 1 million new skin cancers annually in the United States. In 2011, the World Health Organization (WHO) and the International Agency for Research on Cancer (IARC) have classified radiofrequency electromagnetic fields as possibly Carcinogen, carcinogenic to humans (Group 2B). Hazards Dielectric heating from electromagnetic radiation can create a biological hazard. For example, touching or standing around ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Dorset AONB
Dorset National Landscape is a National Landscape area in Dorset, southern England, formerly known as and still legally designated as the Dorset Area of Outstanding Natural Beauty (AONB). The conservation designation means that the area is protected and promoted for its landscape value. The area was established in 1959, one of the early wave of National Landscapes to receive the designation. Dorset National Landscape covers an area of , nearly 43% of the area of the ceremonial county of Dorset. It includes most of the Dorset section of the Jurassic Coast, England's only natural World Heritage Site, plus three Ramsar sites, nine Special Areas of Conservation, and three Special Protection Areas. Other parts of Dorset included in the designation are the chalk hills of the Dorset Downs, the Isle of Purbeck and Poole Harbour, and the vales and rolling hills in the west of the county. Around 75,000 people live within the boundaries of the area, which encompass the towns of Beaminster ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Weymouth, Dorset
Weymouth ( ) is a seaside town and civil parish in the Dorset (district), Dorset district, in the ceremonial county of Dorset, England. Situated on a sheltered bay at the mouth of the River Wey, Dorset, River Wey, south of the county town of Dorchester, Dorset, Dorchester, Weymouth had a population of 53,416 in 2021. It is the third-largest settlement in Dorset after Bournemouth and Poole. The history of the town stretches back to the 12th century and includes roles in the spread of the Black Death, the British colonisation of the Americas, settlement of the Americas and the development of Georgian architecture. It was a major departure point for the Normandy Landings during World War II. Prior to local government reorganisation in April 2019, Weymouth formed a borough with the neighbouring Isle of Portland. Since then the area has been governed by Dorset Council (UK), Dorset Council. Weymouth, Portland and the Purbeck (district), Purbeck district are in the South Dorset parli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Friar Waddon
A friar is a member of one of the mendicant orders in the Catholic Church. There are also friars outside of the Catholic Church, such as within the Anglican Communion. The term, first used in the 12th or 13th century, distinguishes the mendicants' itinerant apostolic character, exercised broadly under the jurisdiction of a superior general, from the older monastic orders' allegiance to a single monastery formalized by their vow of stability. A friar may be in holy orders or be a non-ordained brother. The most significant orders of friars are the Dominicans, Franciscans, Augustinians, and Carmelites. Definition Friars are different from monks in that they are called to the great evangelical counsels (vows of poverty, chastity, and obedience) in service to society, rather than through cloistered asceticism and devotion. Whereas monks live in a self-sufficient community, friars work among laypeople and are supported by donations or other charitable support. Monks or nuns make the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Winterbourne Abbas
Winterbourne Abbas is a village and civil parish in south west Dorset, England, situated in a valley on the A35 road west of Dorchester. In the 2011 census the parish had a population of 355. History In the early hours of 6 May 2023, a large fire broke out at an industrial estate outside the village. The A35 road was closed for several hours. The village Winterbourne Abbas is a pleasant rural village, only spoilt by the heavy traffic which passes through on the A35. The Coach and Horses Inn dates from 1814 or earlier and was a coaching inn on the turnpike road from Dorchester to Bridport. The Baptist Chapel dates from 1872 and has been converted to residential use. Other notable buildings include the Old Post Office in the middle of a terrace of cottages and the Grange. The Nine Stones stone circle lies just to the west of the village just to the south of the A35 road and surrounded by trees. It is probably the best example of a stone circle in Dorset. Also near the vil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Areas Of Outstanding Natural Beauty
An Area of Outstanding Natural Beauty (AONB; , AHNE) is one of 46 areas of countryside in England, Wales, or Northern Ireland that has been designated for conservation due to its significant landscape value. Since 2023, the areas in England and Wales have also adopted the name National Landscape (). Areas are designated in recognition of their national importance by the relevant public body: Natural England, Natural Resources Wales, and the Northern Ireland Environment Agency respectively. On 22 November 2023, following a review, the AONBs in England and Wales adopted the National Landscapes name, and are in the process of rebranding. AONBs in Northern Ireland did not rename. The name "area of outstanding natural beauty" is still the designated legal term. In place of the term AONB, Scotland uses the similar national scenic area (NSA) designation. Areas of Outstanding Natural Beauty enjoy levels of protection from development similar to those of UK national parks, but unlike ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Office Of Gas And Electricity Markets
The Office of Gas and Electricity Markets (Ofgem) is the government regulator for the electricity and downstream natural gas markets in Great Britain. It was formed by the merger of the Office of Electricity Regulation (OFFER) and Office of Gas Supply (Ofgas). Ofgem's governing body is the Gas and Electricity Markets Authority (GEMA), which is also referred to as the Ofgem board. Powers and duties The authority's powers and duties are largely provided for in statute (such as the Gas Act 1986, the Electricity Act 1989, the Utilities Act 2000, the Competition Act 1998, the Enterprise Act 2002 and the Energy Act 2004, the Energy Act 2008 and the Energy Act 2010) as well as arising from directly effective European Union legislation. Duties and functions concerning gas are set out in the Gas Act and those relating to electricity are set out in the Electricity Act. Its primary duty is to protect the interests of consumers, where possible by promoting competition. The Authori ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Directional Boring
Directional boring, also referred to as horizontal directional drilling (HDD), is a minimal impact trenchless method of installing underground utilities such as pipe, conduit, or cables in a relatively shallow arc or radius along a prescribed underground path using a surface-launched drilling rig. Directional boring offers significant environmental advantages over traditional cut and cover pipeline/utility installations. The technique is routinely used when conventional trenching or excavating is not practical or when minimal surface disturbance is required. Although often used interchangeably, the terms directional boring and horizontal directional drilling are distinct in that they convey a different sense of scale. The term "directional boring" or "bore" is generally reserved for mini/small sized drilling rigs, small diameter bores, and crossing lengths in terms of hundreds of feet. Generally, the term Horizontal Directional Drilling (HDD) is intended to describe large/maxi si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Utility Trench In Bwy @ 42 St Jeh
In economics, utility is a measure of a certain person's satisfaction from a certain state of the world. Over time, the term has been used with at least two meanings. * In a Normative economics, normative context, utility refers to a goal or objective that we wish to maximize, i.e., an objective function. This kind of utility bears a closer resemblance to the original Utilitarianism, utilitarian concept, developed by moral philosophers such as Jeremy Bentham and John Stuart Mill. * In a Positive economics, descriptive context, the term refers to an ''apparent'' objective function; such a function is Revealed preference, revealed by a person's behavior, and specifically by their preferences over Lottery (decision theory), lotteries, which can be any quantified choice. The relationship between these two kinds of utility functions has been a source of controversy among both Economics, economists and Ethics, ethicists, with most maintaining that the two are distinct but generally re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
