A Guide to BS EN 62305:2006 Protection Against Lightning Part 1 potx

... the standard. Part 2: Risk management BS EN 62305-2 (part 2) risk managementapproach, does not concentrate so much onthe purely physical damage to a structurecaused by a lightning discharge, ... countries’representatives, have to withdraw all their conflictingNational Standards (ie BS 66 51) in favour of the EN standard. This will occur at the end of August 2008. 11 www.furse.com BS EN 62305 -1 BS EN ... lightning .The approach these new parts impart, are much wider in their view, on protection against lightning, when assessed against BS 66 51. A nearby lightning strike will inject a massive currentinto...

A Guide to BS EN 62305:2006 Protection Against Lightning Part 2 pdf

... at risk in a farbroader sense than merely the physical damage thatcan be caused to a structure by a lightning discharge. BS EN 62305-2 Risk management BS EN 62305 -1 | Type of loss 14 www.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 ... standard. See the explanation on page 10 .Damage to a structure is further subdivided intosources of damage and types of damage. BS EN 62305 -1 General principles 19 www.furse.com Lightning Protection...

A Guide to BS EN 62305:2006 Protection Against Lightning Part 3 pptx

... to BS 66 51 has a flash density map and a worldthunderstorm day's map along with an accompanyingtable. These have been transferred to BS EN 62305-2,and also illustrated in this guide. See ... a 10 /350µs 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 ... increasing importance given to the protection against LEMP (Lightning Electromagnetic Impulse),which can cause immeasurable and irreparabledamage (as well as disastrous consequential effects) to...

A Guide to BS EN 62305:2006 Protection Against Lightning Part 4 pps

... angle (Class of LPS), the spacingbetween the air rods and the height above a particular reference plane. See Figure 4 .18 b. 21 Figure 4 .18 b: View on arrow A BS EN 62305-3 | Catenary (or suspended) ... parallel catenary conductorsConnection to air terminationnetworkConnection to air terminationnetworkReference planeCatenary conductors(air termination) BS EN 62305-3 Physical damage to structures ... 47.7 9.9 10 64.7 21. 2 61. 1 18 .3 53.8 13 .6 45.2 10 .0 11 63.4 22.0 59.6 18 .9 52.0 14 .0 42.8 10 .1 12 62 .1 22.6 58.2 19 .4 50.3 14 .4 40.4 10 .2 13 60.8 23.3 56.8 19 .9 48.6 14 .6 38 .1 10.2 14 59.6 23.8 55.4...

A Guide to BS EN 62305:2006 Protection Against Lightning Part 5 pps

... is a sufficient electricalinsulation distance between the metallic parts canavoid dangerous sparking between different metallicparts. BS EN 5 016 4 -1 is a performance specification. It attempts ... metallicinstallations/parts, such that in the event of lightning currents flowing, no metallic part is at a differentvoltage potential with respect to another. If themetallic parts are essentially ... and SPD selection is given in BS EN 62305-4 and the relevant section of this guide. BS EN 62305-3 Physical damage to structures and life hazard BS EN 5 016 4-2 is both a design and in parts a performance...

A Guide to BS EN 62305:2006 Protection Against Lightning Part 6 pps

... rules.Consequently Annex C was introduced into BS 66 51 only as a strong recommendation/guidance measure.As a result protection was often fitted afterequipment damage was suffered, often throughobligation ... currents) as well as radiated electromagneticfield effects. BS EN 62305-4 is an integral part of the completestandard. By integral we mean that following a riskassessment as detailed in BS EN ... duration 10 /350µswaveform presents far greater energy (and thereforethreat) to a system compared to an 8/20µs waveformwith an equivalent peak current. Equipotential bonding SPDs that are...

A Guide to BS EN 62305:2006 Protection Against Lightning Part 7 doc

... arrangements whenusing KS1as part of the risk evaluation.Similarly KMS(see page 30, Probability of damage) is a factor that is related to the screening effectiveness ofthe shields at the ... serial data transmission.Figure 5 .15 illustrates the same scenario, but protection is achieved with overvoltage SPDs (1/ 2). The use of SPDs in this way generally presents a morepractical and ... travel between separate parts of the samestructure (ie not structurally integral) and whichare not bonded across. Examples include parts of a structure, which are separated by settlement gaps,or...

A Guide to BS EN 62305:2006 Protection Against Lightning Part 8 ppt

... examplesTable 6 .12 : Characteristics of Zone Z 1 (Entrance area)Parameter Comment Symbol ValueSoil surfacetypeMarbler a 1 x 10 -3Shock protection NoneP A 1 Loss by touchand stepvoltagesYesLt 1 ... 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 ... ××− 10 6NDa(P)= × ×××−07 0 11 106.NDa(T)= × ×××−07 0 11 106.NDa(P)= 0NDa(T)= 0Lt=×− 11 04Lf= 1 LrLAa t=×LhrrLBZpff=×××LrLUut=×L A =×0 000 01 0 00 01 LB=×× 11 0 011 .LU=×0...

A Guide to BS EN 62305:2006 Protection Against Lightning Part 9 docx

... x 10 -72.568 x 10 -6RU1(P)N /A N /A 1. 004 x 10 -14 8.035 x 10 -13 7.0 31 x 10 -15 8.206 x 10 -13 RU1(T)N /A N /A 1. 585 x 10 -14 1. 268 x 10 -12 1. 110 x 10 -14 1. 295 x 10 -12 RV1(P)N /A ... 10 -5RZ2(P)N /A N /A 1. 1 71 x 10 -5 1. 1 71 x 10 -5 1. 1 71 x 10 -53. 513 x 10 -5RZ2(T)N /A N /A 4.477 x 10 -54.477 x 10 -54.477 x 10 -5 1. 343 x 10 -4Total N /A N /A 4 .17 8 x 10 -43.9 31 x 10 -43.9 31 ... probabilities of damageProbabilityZ 1 Z2Z3Z4Z5P A 1 0 N /A N /A N /A PBN /A N /A 1 PU(P)N /A N /A 1 PV(P)N /A N /A 1 PU(T)N /A N /A 1 PV(T)N /A N /A 1 Lt1=×− 11 02Lt1=×− 11 04Lf1=...

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 ... 10 6Solution A 10 6– Decision 10 7– LPS design 10 8Air termination network 10 8Down conductor network 11 0Earth termination network 11 0Equipotential bonding 11 1SPDs – structural LPS 11 1SPDs – coordinated...

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