Admissible heat losses within compartments - Busbar temperature increase and heat loss - Explanation of TSK versus design verification

Technical System Catalogue Ri4Power

Ri4Power Admissible heat losses within Configuration without additional climate control or cooling is compartments admissible, provided the calculated value is <= the admissi- ble value for the compartment, and the sum total of heat For verifying the admissibility of individual mounting parts in losses arising in this compartment is <= the maximum total compartments with and without distribution busbar systems, heat loss. The calculation should be enclosed with the plant the following table may be used. To this end, the sum total documentation. of actual heat losses of the devices and wiring must be cal- culated. Table 19: Heat loss table for compartment with distribution busbar Max. heat loss specification Compartment width Compartment height Compartment depth of switchgear in W mm mm mm (uninstalled heat loss) Comments IP 2X IP 43 IP 54/55 400/600/800 150 401/425/600/800 33 28 20 400/600/800 200 401/425/600/800 33 30 27 400/600/800 250 401/425/600/800 33 30 27 400/600/800 300 401/425/600/800 76 76 76 400/600/800 400 401/425/600/800 76 76 76 400/600/800 600 401/425/600/800 193 193 151 400/600/800 800 401/425/600/800 193 193 151 400/600/800 1000 401/425/600/800 193 193 151 400/600/800 1600 401/425/600/800 193 193 151 Max. total heat loss 400/600/800 Section height 1800 401/425/600/800 218 218 218 of section Max. total heat loss 400/600/800 Section height 2000 401/425/600/800 218 218 218 of section Max. total heat loss 400/600/800 Section height 2200 401/425/600/800 245 245 245 of section Each device module 50 50 50 Form 1 Mounting plates Section height 1800 218 218 218 Form 11) Section height 2000 218 218 218 Section height 2200 245 245 245 1) In Form 1 (open design without internal separation), the figure for the complete section height should always be used. This also applies if the heat loss producers are divided among several small partial mounting plates within the section. Busbar temperature increase and heat loss Note: Rated AC currents of the Flat-PLS busbar system Note: up to 60 Hz for uncoated copper bars (E-Cu F30) in A Continuous currents for busbars may be found on the may be found on the Internet under the technical details Internet under the technical details for Catalogue 33, for Catalogue 33, page 153. page 152. Note: Calculation of heat loss for busbars may be found on the Internet under the technical details for Catalogue 33, page 154. Explanation of TSK versus design The design verification to IEC 61 439-1 makes no distinction verification between the type of proof, and considers all approved methods to be equivalent. Standard IEC 60 439-1 is The terms TSK and PTSK are defined in standard expected to be withdrawn as of 1 November 2014. As a IEC 60 439-1 or in the respective national versions. Version result, the terms TSK and PTSK will likewise be withdrawn TSK (type-tested switchgear enclosure) satisfies the required and replaced entirely by the terminology of IEC 61 439-1. proof of temperature rise and short-circuit resistance via testing or a type-testing report. The PTSK version satisfies the required proof via calculation or derivation from a tested variant. Rittal Technical System Catalogue/Power distribution 70


Technical System Catalogue Ri4Power
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