CSA C282-2019 pdf free download

CSA C282-2019 pdf free download.Emergency electrical power supply for buildings.
Note: Where the emergency electrical power supply system is corn prised of more than one generator, it is not intended by the requirements of Item b) to mandate connection of all generators on site within specified times.
c) Connections to firefighters’ elevators, elevators serving storeys above the first storey in a high building, and smoke-venting fans may be delayed up to 60 s.
d) Non-emergency loads may be connected to the emergency electrical power supply system at any time, provided that they do not adversely affect operation of the system.
Note: Non-emergency loads are equipment or systems connected to the emergency electrical power supply system but not required by the NBCC to be connected or not defined as essential electrical system loads by CSA 132 or not essential to the operation of the generator and its engine. They can include
a) storm water pumps and sewage pumps; b) telecommunications and data-processing equipment; c) building heating, cooling, and ventilation systems; d) security systems; and
e) refngeroted and frozen food storage and preparation equipment.
6.4.2
The generator set shall be capable of maintaining the emergency supply voltage and frequency such that
a) on the one-step application of maximum site design load, the emergency electrical power supply system shall continue operating and returns to stable voltage and frequency within 10 s, in accordance with Clause 10.3.3
b) on application or removal of any load or group of loads, the resulting engine generator set voltage and frequency variation shall be within the range suitable for the connected equipment, with a return to stable voltage and frequency within a time frame suitable for the connected equipment; and
c) where an emergency electrical power supply system Is required for emergency power supply to essential electrical systems in conformance with CSA Z32, it shall be capable of maintaining a stable supply voltage for any load connected to the generator up to the maximum load that can be applied at one time in accordance with the control sequence for the emergency electrical power supply. The reduction in frequency shall not exceed 10% and the duration shall not exceed 3 s.
6.4.3
The generator, exciter, and voltage regulator shall be capable of supporting any non-linear loads that are connected to the emergency electrical power distribution system. The connection of non-linear loads to the generator shall be restricted to prevent undue generator voltage distortion that could adversely affect the operation of emergency loads or of the generator or its controls and protective devices.
Note: See Clause 8.6 for commentary on this Clause.CSA C282-2019 pdf free download.