SYSTEM DESIGN

TYPEOFSYSTEM There are numerous different combinations of central battery system type and the correct choice depends as much on customer preference ason design criteria. The selection chart below gives some general guidance. Should you wish to discuss a proposed system type for a particularapplication, our technical department is available to provide assistance. Contact the Central System Technical Sales department,Tel: 0113 3853501/2 or E-mail: central.systems@cooper-ls.com. Do you want dedicatedemergency professional lights or do yourequire the emergencylighting to be integratedwithin the normal lighting? Use a non-maintainedbattery unit or maintainedbattery unit with hold offrelays or static industrial inverter withsub-circuit monitorsDo you want the emergencylighting to be illuminatedwhilst the mains is healthy?eg. maintained emergencylighting, security lightingor nightlighting applications? Either use a maintainedbattery unit with conversionmodules (see note 1)or static inverterunit (see note 2) Use dedicated slaveluminaires powered fromeither a maintained batteryunit or static inverter unit(see note 3) Use a maintained unit orstatic inverter unit(see note 3) with hold offrelays to control the non-maintained luminaires

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All of the lightingNoneof the lightingSomeof the lighting DedicatedIntegrated NOTES emergency lighting levels, or for powering compact fluorescentluminaires where there is often insufficient space within the fitting to accommodate a conversion module. 3.Static inverter systems operate the emergency luminaires atfull brightness throughout the emergency autonomy period, which usually results in significantly improved luminaire spacing for mains slave luminaires compared with an equivalent low voltage AC/DC unit. In addition, the combination of higher supply voltage and the resultant reduced input current reduces installation costs by allowing the use of smaller distribution industrial cables than would be required with a lower voltage AC/DC system.Please note - BSEN60598-2-22 prohibits the use of glow startersin fluorescent luminaires used for emergency lighting. NOTES 1.Conversion modules are designed to be incorporated into a conventional mains luminaire. During normal conditions the luminaire operates at full brightness (using the normal switched mains supply and conventional control gear). In emergency conditions the luminaire continues to operate at reduced brightness (with the emergency lamp being powered from the conversion module instead of the conventional control gear). Conversion modules are ideal for use with mains luminaires which have louvres with a sharp cut off angle, or for projects where the mains luminaires have multiple tubes, but only one tube is required to be illuminated during emergency conditions.2.Static inverters provide mains voltage output during both normal and emergency conditions. They are designed to run conventional mains industrial fittings at full brightness even in emergency conditions. Static inverters are ideal for projects with large open areas, or hazardous areas requiring higher than normal
Emergency - Central Battery Systems