⦁ Power Distribution is a system, consisting of a Main Distribution Board (MDB), Sub Main Distribution Boards (SMDBs) and Final Distribution Boards(FDB), by which the electrical energy is transmitted via branches to reach the exact end user.
⦁ MDB An MDB is a panel or enclosure that houses the fuses, circuit breakers and ground leakage protection units where the electrical energy, which is used to distribute electrical power to numerous individual circuits or consumer points, is taken in from the transformer or an upstream panel. An MDB typically has a single or multiple incoming power sources and includes main circuit breakers and residual current or earth leakage protection devices. A MDB is comprised of a free standing enclosure, a bus bar system, MCCB's, metering and support equipments and required current transformers. Panels are assembled in a systematic manner such as incomer section and outgoing section and maximum current rated up to 6000A
⦁ SMDB which is feed by MDB which is installed generally at the point where a large distribution cable terminates and several smaller sub-circuits start. These are the switchboards that although similar construction, are larger than a final distribution board circuit. The boards are installed midway through the power distribution system, at the point in a large distribution cable ends, and several smaller starting sub-circuits .maximum current rated up to 1250A
⦁ FDB Final Distribution Board is feed by a Sub-Main Distribution Boards ,which then feeds electrical energy to the end user with Current rating up to 250A.
⦁ Electric power generators can be classified in one of three ways depending on their mode of operation standby , continuous, prime generators
⦁ Standby generator :Standby power rated generators are the most commonly rated generator sets. Their primary application is to supply emergency power for a limited duration during a power outage. With standby rated generators there is no overload capability built into the units. Standby power rating should be applied to the unit where public utility power is available. The typical rating for a standby engine should be sized for a maximum of 80% average load factor and roughly 200 hours per year.
⦁ Continuous Power Rating generator :Continuous power rating is used in applications where supplying power is at a constant 100% load for an unlimited number of hours each year. Continuous power rated units are most widely used in applications where the power grid is unreachable. Such applications include mining, agriculture or military operations.
⦁ Prime power rated generators :Prime Power rated generators are used in applications where the power grid unavailable. Prime power applications fall under two distinct categories Indefinite Running Time and Limited Running Time .
⦁ Internal lights includes LED lights (Recessed, Surface mounted, LED step lights, LED Tape Lights), Display lights, Rope lights, Cove Lighting, Fluorescent lights ,decorative lights & Emergency Lights Etc.
⦁ External Lights includes Wall mounted lights, under water lights for swimming pool, Decorative suspended wall mounted light, Linear LED wall washer & Pendant lights Etc.
⦁ Structural Lightning Protection System is installed to minimize the risk of damages to the External & Internal parts of the structures including the electrical and electronic equipments from a Lightning strike and reducing the risk of injury to humans by safety discharging the high voltage to the earth system.
⦁ To calculate the area of protection the rolling sphere technique can be employed. The zone of protection determined by the methods requires protection through the Roof mesh method and protective angle methods.
⦁ The products used for LPS are Bare copper tape, Bare Al Tape, Solid circular conductor, Bare stranded copper conductor, PVC insulated stranded Cu conductor, Strike Pads, Square Tape clamps, Bi- Metallic connectors, Test clamps, Air terminal fixings, Air Terminals, Earth rods, Earth rods clamps, Earth rod couplings, Earth Bars etc.