Introduction section1: general requirements



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DEWA Regulations Book - UPDATED 2017
Central Power system: A system supplying the required emergency power to essential safety equipment.


Circuit. An assembly of electrical equipment supplied from the same origin and protected against over current by the same protective devices.


Circuit breaker. A device capable of making ,carrying and breaking normal load current and also making and automatically breaking ,under pre-determined conditions, abnormal currents such as short circuit currents. It is usually required to operate infrequently although some types are suitable for frequent operation.


Circuit protective conductor (CPC): A protective conductor connecting exposed-conductive- parts of equipment to the main earthing terminal.


Conduit. A part of closed wiring system for cables in electrical installations, allowing them to be drawn in and/or replaced, but not inserted laterally.
Connector: The part of a cable coupler or of appliance coupler which is provided with female contacts and is intended to be attached to the end of the flexible cable remote from the supply.


Connection Point/Point of connection: is the location at which the renewable resource generating unit is connected to the network and where the main meter is installed.
Current carrying capacity of a conductor. The maximum current which can be carried by a conductor under specified conditions without its steady state temperature exceeding a specified value.
Current-using equipment. Equipment which converts electrical energy into another form of energy, such as light, heat or motive power


Demand Factor: Ratio of maximum demand of the system to the total connected load, demand factor will be equal to or less than 1.


Design Current (of a circuit): The magnitude of the current (r.m.s value for a.c) to be carried by the circuit in normal service.


Disconnector: A mechanical switching device which, in the open position, complies with the requirements specified for the isolating function.



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