1、BRITISH STANDARDBS EN 50164-7:2008Lightning Protection Components (LPC) Part 7: Requirements for earthing enhancing compoundsICS 91.120.40g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3
2、g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 50164-7:2008This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 September 2008 BSI 2008ISBN 978 0 580 52981 8National forewordThis British Standard is the UK implementation of EN 50164-7:2008.The UK
3、participation in its preparation was entrusted to Technical Committee GEL/81, Protection against lightning.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users
4、are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments/corrigenda issued since publicationDate CommentsEUROPEAN STANDARD EN 50164-7 NORME EUROPENNE EUROPISCHE NORM August 2008 CENELEC European Committee for Electrotechn
5、ical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN
6、50164-7:2008 E ICS 91.120.40 English version Lightning Protection Components (LPC) - Part 7: Requirements for earthing enhancing compounds Composants de protection contre la foudre (CPF) - Partie 7: Prescriptions pour les enrichisseurs de terre Blitzschutzbauteile -Teil 7: Anforderungen an Mittel zu
7、r Verbesserung der Erdung This European Standard was approved by CENELEC on 2008-04-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date
8、lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under th
9、e responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France,
10、Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 50164-7:2008 2 Foreword This European Standard was prepared by the Technical Committe
11、e CENELEC TC 81X, Lightning protection. The text of the draft was submitted to the Unique Acceptance procedure and was approved by CENELEC as EN 50164-7 on 2008-04-01. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical n
12、ational standard or by endorsement (dop) 2009-04-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2011-04-01 EN 50164 is a family standard and consists of the following parts under the generic title “Lightning Protection Components (LPC)”: Part 1 Requ
13、irements for connection components Part 2 Requirements for conductors and earth electrodes Part 3 Requirements for isolating spark gaps Part 4 Requirements for conductor fasteners Part 5 1)Requirements for earth electrode inspection housings and earth electrode seals Part 6 1)Requirements for lightn
14、ing strike counters Part 7 Requirements for earthing enhancing compounds _ 1)In preparation. BS EN 50164-7:2008 3 EN 50164-7:2008 Contents Page 1 Scope 4 2 Normative references . 4 3 Definitions 4 4 Requirements 4 4.1 Documentation 5 4.2 Material . 5 4.3 Marking . 5 5 Tests . 5 5.1 General . 5 5.2 p
15、H measurement . 5 5.3 Solubility in acidic environment . 6 5.4 Sulphur determination . 8 5.5 Determination of conductivity 8 5.6 Determination of efficiency of improvement of contact surface area of the electrode . 8 5.7 Marking and indications . 9 6 Structure and content of the test report 9 6.1 Re
16、port identification 9 6.2 Specimen description 10 6.3 Standards and references . 10 6.4 Test procedure 10 6.5 Testing equipment, description 10 6.6 Measuring Instruments description 10 6.7 Results and parameters recorded 10 BS EN 50164-7:2008EN 50164-7:2008 4 1 Scope This European Standard specifies
17、 the requirements and tests for earthing enhancing compounds increasing the contact surface area of the earth electrode. NOTE Refill products are not within the scope of this European Standard. 2 Normative references The following referenced documents are indispensable for the application of this do
18、cument. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 62305-1 Protection against lightning Part 1: General principles (IEC 62305-1) EN 62305-3 Protection against lightning Part 3: Phy
19、sical damage to structures and life hazard (IEC 62305-3, mod.) EN 62305-4 Protection against lightning Part 4: Electrical and electronic systems within structures (IEC 62305-4) EN 12457-2 Characterization of waste Leaching Compliance test for leaching of granular waste materials and sludges Part 2:
20、One stage batch test at a liquid to solid ratio of 10 l/kg for materials with particle size below 4 mm (without or with size reduction) EN 12506 Characterization of waste Analysis of eluates Determination of pH, As, Ba, Cd, Cl-, Co, Cr, Cr Vl, Cu, Mo, Ni, NO2-, Pb, total S, SO42-, V and Zn ISO 4689-
21、3 2004 Iron ores Determination of sulfur content Part 3: Combustion/infrared method 3 Definitions For the purposes of this document, the following terms and definitions apply. 3.1 earthing enhancing compound compound improving the contact surface of the earth electrode without damaging the electrode
22、s or polluting the environment 3.2 manufacturers, suppliers instructions written instructions provided by the manufacturer or the supplier in his documentation (see 4.1) 3.3 leaching test test during which is put into contact with a leachant and some constituents of the material are extracted 4 Requ
23、irements Earthing enhancing compounds shall be so designed and constructed that in normal use their performance is reliable and without danger to persons and the surrounding. The choice of a material depends on its ability to match the particular application requirements. BS EN 50164-7:2008 5 EN 501
24、64-7:2008 4.1 Documentation The manufacturer or supplier of the earthing enhancing compounds shall provide adequate information in his literature to ensure that the installer can select and install the materials in a suitable and safe manner. Compliance is checked by inspection. 4.2 Material The mat
25、erial of the earthing enhancing compound must exhibit low specific resistance and chemically inert to subsoil. It must not pollute the environment. It must be insoluble in water. Its aquatic suspension must not exhibit an acidic pH. It must not contain substances corrosive to the earth electrodes. I
26、t must be inert to steel, stainless steel, zinc, copper. 4.3 Marking All products complying with this standard shall be marked at least with the following: a) manufacturers or responsible vendors name or trade mark, b) identifying symbol. Where this proves to be impractical the marking in accordance
27、 with b) may be given on the smallest packing unit. NOTE Marking may be applied for example by moulding, pressing, engraving, printing adhesive labels, or water slide transfers. Compliance is checked in accordance with 5.7. 5 Tests 5.1 General The tests in accordance with this standard are type test
28、s. Unless otherwise specified, tests are carried out with the specimens prepared as in normal use according to the manufacturers or suppliers instructions. All tests are carried out on new specimens. Unless otherwise specified, three samples are subjected to the tests and the requirements are satisf
29、ied if all the tests are met. If only one of the test does not meet the passing criteria , 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. NOTE The applicant, when submi
30、tting the material to be tested, may also submit an additional quantity which may be necessary should one test fail. The testing station will then, without further request, repeat the test and will reject only if a further failure occurs. If the additional sample is not submitted at the same time, t
31、he failure of one test will entail rejection. 5.2 pH measurement This test covers the procedure for determining the pH of slurries coming from the materials used as earthing enhancing compound. The significance of the test is important because they must be physically and chemically inert with the ea
32、rth electrodes, to avoid corrosion and the surrounding environment. BS EN 50164-7:2008EN 50164-7:2008 6 5.2.1 Testing apparatus Any reliable pH meter with a standard electrode for measuring viscous slurries or for measuring soils Standard pH reference solution Deionised water Glassware Mixer Balance
33、 with an accuracy of 0,01 g 5.2.2 Test preparation The volume of the material to be tested shall be the appropriate to perform the test. If the material is provided commercially in wet form, then it must be tested as received. If the material is provided commercially in dry form and used in wet form
34、, then a slurry must be prepared according to the manufacturers instructions. Care must be taken during slurry preparation. The produced slurry shall be homogenous without any coagulates. If the material is provided commercially and used in dry form, then it must be tested as received. 5.2.3 Procedu
35、re of test The pH meter will be calibrated with the reference solution. Read and report pH. 5.2.4 Passing criteria The material is deemed to have passed the test if all the measured values are 8. The property of the material is determined by the average value of the three independent measurements. 5
36、.3 Solubility in acidic environment This test covers the procedure for determining the solubility of the material used in earthing in acidic environment. It is considered that this test covers the requirements for the solubility of the material in the water. The significance of the test of such mate
37、rials is important because they must be stable with time (provide continuous and stable connection of the electrode with the subsoil). 5.3.1 Testing apparatus Glassware Mixer or stirrer Balance with an accuracy of 0,01 g Oven operating at 105 C 10 % solution of sulphuric acid in de-ionized water Fil
38、ter paper Whatman #3 or equivalent BS EN 50164-7:2008 7 EN 50164-7:2008 5.3.2 Test preparation If the material is provided commercially in wet form, then adequate quantity must be dried at 105 C overnight in order to test the material in dry form. If the material is provided commercially in dry form
39、, then it must be tested as received. However adequate quantity must stay at 105 C overnight in order to remove any moisture. 5.3.3 Procedure of test 5 g (= W1) of pre-dried material are weighted with an accuracy of 0,01 g and added to 500 ml of dilute acid solution 10 % under stirring. After 30 min
40、 1 min of stirring, the slurry is filtered. The filtered material is dried at 105 C 5 C until constant weight. The resultant weight is recorded as W2. NOTE 1 The filter papers must be dry. They can be kept in a dryer. Before filtration their weight must be measured in order to be able to determine t
41、he weight of the tested material: W2 = (Balance indication) (Filter weight) NOTE 2 The weighted materials (filter tested material) must have the environmental temperature. For this reason, after taking out of the oven, they must be kept in a dryer until they are cooled down. The solubility of the ma
42、terial is determined as: S (%) = 100 * (W1 W2)/W1 5.3.4 Passing criteria The material is deemed to have passed the test if the measured value is less than 25 %. 5.3.5 Determination of leachable ions This test covers the procedure for determining the leachable ions of the materials used in earthing.
43、The significance of the test of the materials used as earthing improver must be inert to subsoil and they must not pollute the environment and also not cause corrosion to the earth electrode. For these reasons the determination of the leachable ion concentrations is of great importance. 5.3.6 Leachi
44、ng test Leaching test should be performed according to EN 12457-2: Fe (iron) Cu (copper) Zn (zinc) Ni (nickel) Cd (cadmium) Co (cobalt) Pb (lead) 5.3.7 Determination of leachable ions Determination of the concentrations of constituents of interest should be performed according to EN 12506. BS EN 501
45、64-7:2008EN 50164-7:2008 8 5.3.8 Passing criteria Under consideration. NOTE The criteria are given by national or international standards regarding environmental regulations (see European requirements). 5.4 Sulphur determination Test for the determination of sulphur should be performed according to
46、ISO 4689-3:2004. Passing criteria: The material is deemed to have passed the test if all measured values are less than 2 %. 5.5 Determination of conductivity This test covers the procedure for determining the conductivity of slurries coming from the materials used in earthing. The significance of th
47、e test is important because they must provide a constant electrical contact of the electrodes with the subsoil. 5.5.1 Testing apparatus Any reliable conductivity meter with a standard electrode for measuring high conductivity values Standard conductivity reference material Distilled water Glassware
48、Mixer Balance with an accuracy of 0,01 g 5.5.2 Test preparation If the material is provided commercially in dry form, then slurry must be prepared according to the manufacturers instructions. If the material is provided commercially in wet form, then it must be tested as received. 5.5.3 Procedure of
49、 test The conductivity meter will be standardized with the reference material. Read and report conductivity. 5.5.4 Passing criteria The material is deemed to have passed the test if the measured value is higher than 2 mS/cm. The property of the material is determined by the average value of the three independent measurements. 5.6 Determination of efficiency of improvement of contact surface area of the electrode Und
