Electrical wiring needs expertise attention to every building projects. It directly related to the safety of human beings and utilities / equipment people handle. The scope of electrical wiring shall cover supply, installation, testing and commissioning of all conduits and accessories, wiring, switches, socket outlets, spur outlets, junction boxes / pull boxes, GI pull wires, ceiling roses making connections etc. This Electrical Construction Article gives comprehensive details of various installation methods, materials used in each installation methods used in building construction projects.
A. Earthing Cables: Separate protective earthing cables for lighting column circuits are to be run with power circuit, terminated at LV supply position in lighting control panel and looped into column earthing terminals. The last column is to be bonded via an earthing bolt to a single 16 mm diameter stainless steel rod, 3.6 m long, driven into ground adjacent to column. Bonding is to be 16 mm2 stranded bare copper conductor.
The air vacuum circuit breakers are of the triple pole indoor type for rated voltage 24 KV. They operate on the vacuum arc quenching principle and outstandingly cost effective. The vacuum breaker consists of the mechanism 2 housing complete with stored energy mechanism and control elements. The three poles with vacuum interrupters, cast resin insulators and bracing struts, and the operating rods connecting the mechanism with the breaker poles.
A Digital Video Recorder (DVR) is responsible for obtaining views from live cameras, store and retrieve video footages when it needs. Hikvision has DVR that can be connected upto 32 cameras and capable to control remotely. DVR displays live view on the monitoring device - screen and at the same time it will record data to the HDD connected to it. It can record all the video footage or only in a pre-configured security events occurred. It depends the operator the system owns.
Technical Submittals of Materials / Equipment Approval for External, Exterior and Outdoor Lighting System consists equipment data, compliance statements, shop drawings or construction drawings, samples, product certificates, field test reports, maintenance data and as-built (record) drawings.
What Is Engineering? Engineering is an art of applying science to the optimum conversion of the resources of nature to the uses of humankind. It is based principally on physics, chemistry, and mathematics and their extensions into materials science, solid and fluid mechanics, thermodynamics, transfer and rate processes, and systems analysis. It is thus we must define Engineering: "the practical application of science and math to commerce or industry". In other words "the art or science of applying scientific knowledge to practical problems".
1. INSPECTION AND TEST METHODS - GENERAL
Every building construction work shall be inspected and tested by the representative of the main contractor to keep their Quality Plan in force as detailed here: All the installations will have a unique reference for the purpose of inspection/testing methods; It will be a condition in the purchase order, that wherever necessary individual sub-contractors will prepare inspection and test plans appropriate to their work activities.
External, Exterior and Outdoor Lighting System includes lighting units with luminaires, lamps, ballasts, poles / support structures, and accessories and related power distribution and control, protective earthing and related builder's work including column foundations, cable pits, cable trenches and ductwork.
The Plot Developer shall submit for approval any proposed signboard complete with details and specifications. The submission must include colour drawings of the signboard and provide illumination details. Sign board size, height, layout and details shall be as per the images shown in project documentation.