A Guide to BS EN 62305:2006 Protection Against Lightning Part 3 pptx
A Guide to BS EN 62305:2006 Protection Against Lightning Part 3 pptx
... has a flash density map and a worldthunderstorm day's map along with an accompanyingtable. These have been transferred to BS EN 6 230 5-2,and also illustrated in this guide. See Figure 3. 5 ... structureUndergroundserviceOverheadservice A mHcHb1 :3 BS EN 6 230 5-2 | Collection area BS EN 6 230 5-2 Risk management (3. 18) (3. 19) (3. 20)Figure 3. 4: Collection areasALic= 25ρ (3. 21) BS EN 6 230 5-2 | UK lightning flash ... a 10 /35 0µs waveform) are necessary to divert the partial lightning currents safely to earthand limit the transient overvoltage to prevent possibleflashover. They are therefore an integral part...
- 13
- 942
- 1
A Guide to BS EN 62305:2006 Protection Against Lightning Part 1 potx
... the standard. Part 2: Risk management BS EN 6 230 5-2 (part 2) risk managementapproach, does not concentrate so much onthe purely physical damage to a structurecaused by a lightning discharge, ... Lightning 2www.furse.com A Guide to BS EN 6 230 5:2006 Protection Against Lightning Author’s noteThe initial reaction from anyone reading, absorbingand comparing this new four -part BS EN 6 230 5 with BS 6651 will ... European Union (EU), particularlyrelating to standardisation. Consequently, any BritishStandard now published has to be in commonagreement with its European equivalent.The UK, as far as standards...
- 13
- 445
- 1
A Guide to BS EN 62305:2006 Protection Against Lightning Part 2 pdf
... management looks at risk in a farbroader sense than merely the physical damage thatcan be caused to a structure by a lightning discharge. BS EN 6 230 5-2 Risk management BS EN 6 230 5-1 | Type of loss14www.furse.comType ... nationalparameters and information. These National Annextables are highlighted later in this guide. One of the first changes to realise is that this newapproach to risk management looks at ... IVCurrent permode (kA)25 18.75 12.5 12.5Table 2 .3: Current capability of lightning current SPDsbased on 10 /35 0µs waveform21www.furse.com BS EN 6 230 5-2 BS EN 6 230 5-2 Risk management BS EN 6 230 5-2...
- 13
- 786
- 0
A Guide to BS EN 62305:2006 Protection Against Lightning Part 4 pps
... terminationnetworkConnection to air terminationnetworkReference planeCatenary conductors(air termination) BS EN 6 230 5 -3 Physical damage to structures and life hazardh Physical height of catenary conductors above ... 25.9 13. 429 45.6 29.6 37 .7 22 .3 24.4 12.9 30 44.8 29.8 36 .7 22 .3 22.8 12.2 31 44.1 30 .0 35 .7 22.2 32 43. 3 30 .1 34 .7 22.1 33 42.6 30 .3 33. 7 21.9 34 41.8 30 .4 32 .8 21.8 35 41.1 30 .4 31 .8 21.6 36 ... 21.6 36 40 .3 30.5 30 .9 21 .3 37 39 .6 30 .5 29.9 21.1 38 38 .8 30 .4 29.0 20.8 39 38 .1 30 .4 28.1 20.540 37 .3 30 .3 27.2 20.241 36 .6 30 .2 26.2 19.842 35 .9 30 .0 25 .3 19.4 43 35.1 29.9 24.4 18.944 34 .4...
- 13
- 545
- 0
A Guide to BS EN 62305:2006 Protection Against Lightning Part 5 pps
... and SPD selection is given in BS EN 6 230 5-4 and the relevant section of this guide. BS EN 6 230 5 -3 Physical damage to structures and life hazard BS EN 50164-2 is both a design and in parts a performance ... electricalinsulation distance between the metallic parts canavoid dangerous sparking between different metallicparts. BS EN 50164-1 is a performance specification. It attempts to simulate actual ... conductor fixing centres (BS EN 6 230 5 -3 Table E.1) BS EN 6 230 5 -3 Physical damage to structures and life hazard BS EN 6 230 5 -3 | Earth termination system56www.furse.comFrom a practical point of...
- 13
- 967
- 0
A Guide to BS EN 62305:2006 Protection Against Lightning Part 6 pps
... currents) as well as radiated electromagneticfield effects. BS EN 6 230 5-4 is an integral part of the completestandard. By integral we mean that following a riskassessment as detailed in BS EN ... duration 10 /35 0µswaveform presents far greater energy (and thereforethreat) to a system compared to an 8/20µs waveformwith an equivalent peak current. Equipotential bonding SPDs that are ... other insulating materials is underconsideration. Table 4.15: Values of coefficient km (BS EN 6 230 5 -3 Table 12)Table 4.16: Values of coefficient kc (BS EN 6 230 5 -3 Table C.1) a) Values range from...
- 13
- 531
- 0
A Guide to BS EN 62305:2006 Protection Against Lightning Part 7 doc
... electrodeBondingterminalsLPZ 0BLPZ 0 A Management of an LPMS As detailed in BS EN 6 230 5 -3, there is a requirement to routinely maintain and inspect a structural LPS to ensure its designed mechanical and electricalcharacteristics ... 5.5: Ideal Faraday Cage Lightning currentContinuous metal box- ideal Faraday CageFigure 5.6: Large volume shield created by metalreinforcement within a structure (BS EN 6 230 4-4 Figure A. 3) Welded ... of BS EN 6 230 5 -3 details the requirements for the materials and dimensions of electromagneticshields such as metallic cable trays and equipmentenclosures. This is of particular importance at...
- 13
- 467
- 0
A Guide to BS EN 62305:2006 Protection Against Lightning Part 8 ppt
... very easy andbecome routine in nature to automatically calculatethe risks R1 and R2. If it is a listed building or has anycultural importance then R 3 can additionally becalculated at the ... documentation.The documentation should be continuously updated,particularly to take account of alterations to thestructure that may require an extension of the LPMS.Summary Damage, degradation ... electrical contractor may add a powersupply line to external CCTV cameras or car park lightning. As this line is likely to cross an LPZ, suitable protection measures (eg SPD) should be employed to ensure...
- 13
- 363
- 0
A Guide to BS EN 62305:2006 Protection Against Lightning Part 9 docx
... flashes) in accordance withAnnex A of BS EN 6 230 5-2. The calculated values aresummarised in Table 6.18.Probability of damage Ascertain the probability of each particular type ofdamage occurring ... any possible flashover in the event of a lightning discharge striking the air rod.In this case there is sufficient space to maintain a separation distance of 1.5m between each air rod andeach ... accordance with Annex A of BS EN 6 230 5-2. The calculated values aresummarised in Table 6.17.Number of dangerous events Calculate the expected annual number of dangerousevents (ie number of flashes)...
- 13
- 461
- 0
A Guide to BS EN 62305:2006 Protection Against Lightning Part 10 ppsx
... materials are considered.Suburban environmentArea with a medium density of buildings. ”Town outskirts” is an example of a suburbanenvironment. SurgeTransient wave appearing as overvoltage ... current attains 10% of its peakvalue.Voltage switching type SPDSPD that has a high impedance when no surge ispresent, but can have a sudden change in impedance to a low value in response to a ... (NL)Expected average annual number of dangerous eventsdue to lightning flashes to a service.Number of dangerous events due to flashes to a structure (ND)Expected average annual number of dangerous...
- 7
- 470
- 0
Từ khóa: a guide to engineering experiencesa guide to modern databasesa guide to xml importa guide to c programming paul kelly pdfdesigning games a guide to engineering experiences pdfdesigning games a guide to engineering experiencesverilog a guide to digital design and synthesisverilog hdl a guide to digital design and synthesis with cd 2nd editionverilog hdl a guide to digital design and synthesis 2nd edverilog a guide to digital design and synthesis pdfverilog hdl a guide to digital design and synthesis 2nd pdfverilog hdl a guide to digital design and synthesis solution manual pdfverilog hdl a guide to digital design and synthesis downloadverilog hdl a guide to digital design and synthesisverilog hdl a guide to digital design and synthesis pdfNghiên cứu sự biến đổi một số cytokin ở bệnh nhân xơ cứng bì hệ thốngNghiên cứu tổ hợp chất chỉ điểm sinh học vWF, VCAM 1, MCP 1, d dimer trong chẩn đoán và tiên lượng nhồi máu não cấpNghiên cứu vật liệu biến hóa (metamaterials) hấp thụ sóng điện tử ở vùng tần số THzBiện pháp quản lý hoạt động dạy hát xoan trong trường trung học cơ sở huyện lâm thao, phú thọGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitPhát triển mạng lưới kinh doanh nước sạch tại công ty TNHH một thành viên kinh doanh nước sạch quảng ninhNghiên cứu về mô hình thống kê học sâu và ứng dụng trong nhận dạng chữ viết tay hạn chếNghiên cứu khả năng đo năng lượng điện bằng hệ thu thập dữ liệu 16 kênh DEWE 5000Kiểm sát việc giải quyết tố giác, tin báo về tội phạm và kiến nghị khởi tố theo pháp luật tố tụng hình sự Việt Nam từ thực tiễn tỉnh Bình Định (Luận văn thạc sĩ)BT Tieng anh 6 UNIT 2Tranh tụng tại phiên tòa hình sự sơ thẩm theo pháp luật tố tụng hình sự Việt Nam từ thực tiễn xét xử của các Tòa án quân sự Quân khu (Luận văn thạc sĩ)chuong 1 tong quan quan tri rui roGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtBÀI HOÀN CHỈNH TỔNG QUAN VỀ MẠNG XÃ HỘIĐổi mới quản lý tài chính trong hoạt động khoa học xã hội trường hợp viện hàn lâm khoa học xã hội việt namHIỆU QUẢ CỦA MÔ HÌNH XỬ LÝ BÙN HOẠT TÍNH BẰNG KIỀMQUẢN LÝ VÀ TÁI CHẾ NHỰA Ở HOA KỲ