Electrical Contractor Supply

THE ESSENTIAL POCKET REFERENCE FOR FIELD ENGINEERS--expanded, completely revised--and more useful than ever! As an engineer working in the field, you can't bring along a library of technical materials for every problem that might arise. You need a compact portable reference containing the wide range of technical data necessary to conduct preliminary surveys ... solve field problems ... evaulate construction plans ... select building materials ... and deal with hundreds of other unpredictable situations. For more than two decades, professional engineers, contractors, and project supervisors have turned to Parmley's FIELD ENGINEER'S MANUAL for instant access to reliable data on hydraulics * erosion control * drainage * construction materials * welding * sewage collection * water supply and storage * fire protection * energy and fuels * geology and soils * athletic facilities and more. Completely revised, this Third Edition includes new sections on sewage treatment, streets and roads, and rope tying, as well as expanded and updated coverage of field inspection, electricity, HVAC, surveying, drainage, safety and first aid, and much more. Along with an attractive new layout that makes accessing information even easier, this complete working tool comes all-inclusive with over 400 illustrations, mathematical formulas, conversion tables, information on SI units, and a comprehensive cross-referenced index.

Hughes Supply Incorporated - Hughes Supply could be called huge supply; the company distributes more than 350,000 products to construction, public infrastructure, and industrial customers. Hughes operates through three business segments: Electrical and Plumbing (electrical and electric utility products, HVAC products), Water & Sewer/Building Materials (water and sewer products, building materials, maintenance supplies, fire protection products, concrete products), and Industrial (industrial pipes, valves, and fittings).

Electrical bonding - Electrical bonding is related to the Earthing system of the mains supply and refers to the fact that in a building served with electricity it is normal for safety reasons to connect all metal objects such as pipes together to the mains earth to form a equipotential zone. This is done in the UK becuase many buildings are supplied with a single phase supply cable where the neutral and earth conductors are combined.

Electrical engineering - Electrical engineering (sometimes referred to as electrical and electronics engineering) is a professional engineering discipline that deals with the study and application of electricity, electromagnetism and electronics. The field first came to public attention in the late nineteenth century with the installation of the first large-scale electrical supply networks and now encompasses a range of sub-disciplines including power, control systems, electronics and telecommunications.

Power supply - A power supply unit (sometimes abbreviated power supply or PSU) is a device or system that supplies electrical or other types of energy to an output load or group of loads.

electricalcontractorsupply

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