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Help CenterIEC 60598-1:2020 Luminaires Test Chain for Figure 29 63% Cu/37% Zn
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IEC 60598-1:2020 Test chain for Figure 29 63% Cu/37% Zn
The test chain is designed according to the standard requirements of IEC 60598 standard 4.26 item. It is mainly used for testing the accidental short-circuit protection of uninsulated lights, accessible and opposite SELV parts.
The test chain is made of pinchbeck alloy(Cu63Zn37), plating surface treatment and coating ,200g/m ,the range of resistance value is between 2.5±20%Ωwhen loading stretch.
4.26.2 A type test sample is operated at 0,9 to 1,1 times its rated voltage with its nominal
load. In case the supply source is an ES1 PSE, no short-circuit is needed. A test chain as specified in 4.26.3 is hung over accessible uninsulated SELV or PELV parts. The test chain
shall form the shortest possible path by being loaded at each end, subject to a maximum of
250 g with a weight equal to:
(15 ‘ X’) g
where ‘ X’ is the distance between conductors in the unloaded state, in centimetres.
The test chain shall not melt through, nor shall any part of the type test sample reach a temperature exceeding the values of Tables 12.1 and 12.2.
4.26.3 Test chain: A chain of sufficient length of an uncoated metal, having links in accordance with Figure 29 and made of 63 % Cu/37 % Zn. The chain shall have a resistance value of 2,5Ω/m with a tolerance of ±20 % when stretched with a load of 200 g/m. The resistance value of the test chain should be checked before each measurement.
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