bs英国标准bsen50164-6-20xxlightningprotectioncomponents(lpc)—part6requirementsforlightningstrikec

bs英国标准bsen50164-6-20xxlightningprotectioncomponents(lpc)—part6requirementsforlightningstrikec内容摘要：

its ability to match the particular application requirements. Documentation The manufacturer or supplier of the lightning strike counter shall provide adequate information in his literature to ensure that the installer can select and install the counter in a suitable and safe manner, in accordance with EN 623053 and EN 623054. Compliance is checked by inspection. Marking All products plying with this standard shall be marked at least with the following: a) the name of the manufacturer or his trademark。 b) the reference of the type or the serial number。 c) the position of the assembly if necessary。 d) the degree of protection (IP) if applicable。 e) conformity to the present standard (of which in particular Itc and Imcw if appli c abl e). If for small devices, the place available is not sufficient for all the indications which must appear on it, the indications in items a) and b) above must be at least reproduced on the apparatus and be visible when this one is installed. The indications aimed at in c), d) and e) can be carried on the packing and/or in the installation data sheet and/or the catalogue of the manufacturer. NOTE Marking may be applied f or example by moulding, pressing, engraving, printing adhesive labels, or w ater slide transfers. Compliance is checked in accordance with . Design The design of the lightning counter shall be such it carries out its function of counting the number of lightning strikes flowing in a conductor. These devices shall detect and record lightning strikes regardless of the polarity of the discharge current. Lightning strike counters intended to be used outdoor must be able to withstand environmental conditions including temperature, dust and humidity. The minimum index of protection is IP43 obtained by itself or in bination with a box in accordance with EN 60529. The threshold current Itc and the maximum counting and withstand current Imcw are both declared by the manufacturer. At Itc/3 the surge counter shall not operate. Compliance is checked in accordance with , and . BS EN 501646:2020 EN 501646:2020 – 6 – The size of display if any, must allow a normal reading of the number of lightning strikes recorded, when it is installed in accordance with the instructions of the manufacturer. The fixing system of the counter should not apply an unacceptable stress to the conductor. Its material must be patible with that of the conductor (galvanic coupling). 5 Classification Lightning strike counters are classified according to their application, threshold currents and maximum counting and withstand current. Application: for connection on LPS conductors, for connection on SPD conductors and for connection on both conductors. Itc and Imcw values should ply with Table 1. Table 1 Typical values for Itc and Imcw Application Values for Itc Values for Imcw Connection on LPS conductors 1 kA 8/20 100 kA 10/350 Connection on SPD conductors 500 A 8/20 20 kA 8/20 40 kA 8/20 60 kA 8/20 80 kA 8/20 100 kA 8/20 Connection on LPS and SPD conductors 1 kA 8/20 100 kA 10/350 NOTE All current w aveforms according to EN 623051. 6 Tests General The tests in accordance with this standard are type tests. Unless otherwise specified, tests are carried out with the specimens assembled and installed as in normal use according to the manufacturer’s or supplier’s instructions. All tests are carried out on new specimens. Unless otherwise specified, three specimens are subjected to the tests and the requirements are satisfied if all the tests are met. If only one of the specimens does not s atis fy a test due to an assembly or a manufacturing fault, that test and any preceding one which may have influenced the results of the test shall be repeated and also the tests which follow shall be carried out in the required sequence on another full set of specimens, all of which shall ply with the requirements. NOTE The applicant, when submitting a set of specimens , ma y als o submit an additional set of specimens which may be necessary should one specimen fail. The tes ting laboratory will then, without further reques t, tes t the additional set of specimens and will rejec t only if a further failure occurs. If the additional set of specimens is not submitted at the same time, the f ailure of one specimen w ill entail rejection. BS EN 501646:2020 EN 501646:2020 – 7 – General conditions for the tests Identification of the counters submitted for testing The counters submitted for testing must be identified by means of the following elements: – marks and indications specified in。 – assembly instructions with reference and date. Assembly of the lightning strike counters The counters must be mounted in accordance with the instructions specified by the manufacturer in his assembly instructions. Number of samples submitted for testing The number of samples is 3 for the electric tests and 1 for the other tests. NOTE The use of the same sample for several tes ts is possible af ter agreement of the manufac turer. Conditions of ambient temperature and moisture Unless otherwise specified, the tests are carried out at an ambient temperature ranging between 5 176。 C and 35 176。 C and not to vary during the duration of test of more than 3 K. The lightning strikes counters must be protected from a heating or an excessive external cooling. Mechanical tests The test is carried out on the part accessible from the lightning strikes counter, assembled under the normal operating conditions. The samples are subjected to mechanical impacts. Testing device The lightning strikes counter is mounted on an impact test。