Welcome to the ABB Webinar

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Welcome to the ABB Webinar Lightning Protection The presentation will begin at 13.

can ask questions during the presentation using the question panel The full screen icon maximizes the presentation area.

The audio box allows you to choose your audio options. All attendees will be muted during the webinar.

Please note the location of the dialin number, access code and audio pin below.

1 Welcome to the ABB Webinar Lightning Protection The presentation will begin at BST If you are having any problems viewing or hearing the webinar then please ask a question using the question panel You can ask questions during the presentation using the question panel The full screen icon maximizes the presentation area. The raise hand icon alerts the organizer that you have a question or comment. The audio box allows you to choose your audio options. All attendees will be muted during the webinar. If you have selected Use Telephone the box below will appear, providing you with the callin information. Please note the location of the dialin number, access code and audio pin below. You will receive the correct numbers both in your verification following registration and on the console on the day of the webinar. The questions panel allows you to send a question to the organiser. During Q&A the organiser will direct all questions to the appropriate presenter. November 15, 2012 Slide 1

2 ABB Engineering Services / Webinar - 14 th September 2011 Lightning i Protection ti November 15, 2012 Slide 2

ABB Engineering Services ABB Group Headquarters: Zurich, Switzerland More than

Engineering g Services part of ABB Consultancy business A leading international

power, oil & gas, metals and pharmaceutical sectors 500 employees UK Offices

performance Operating Globally in Azerbaijan, Belgium, Denmark, Ireland,

3 ABB Engineering Services ABB Group Headquarters: Zurich, Switzerland More than 130,000 employees in about 100 countries Orders in 2010: 32 billion ABB Engineering g Services part of ABB Consultancy business A leading international technical consultancy focussed on process industries Focus on the chemical, power, oil & gas, metals and pharmaceutical sectors 500 employees UK Offices Warrington, Billingham, Burton-on -Trent, Aberdeen, Hull World-class safety performance Operating Globally in Azerbaijan, Belgium, Denmark, Ireland, Malaysia, Netherlands, Norway, S.Africa, Saudi Arabia, Singapore, Thailand, UAE & USA November 15, 2012 Slide 3

4 Accounts

5 Objectives for the webinar Update on key industry topics Share good practice November 15, 2012 Slide 5

6 John Jones, ABB Engineering Services / Webinar - 14 th September 2011 Lightning i Protection ti As required by Part 2 of BS 62305:2006 November 15, 2012 Slide 6

7 Recent events... The Airbus A380 on its descent into London s Heathrow airport. Gatwick Airport Lightning strike near to control tower. Resulted in temporary loss of systems November 15, 2012 Slide 7

8 Recent events... Texaco crude oil storage Houston, Texas The fire started when lightning struck the tank Antwerp Harbour, Belgium November 15, 2012 Slide 8

9 Have you seen these effects:? Broken TVs Hi-Fi Modem Router PC s Telephone Cordless Etc POLL 1 In Industry DCS SIS Field Equipment November 15, 2012 Slide 9

10 Purpose of today Is to understand: The process and methodology to perform a risk assessment as required by BS 62305:2006 Part 2 November 15, 2012 Slide 10

11 History of lightning protection in the UK November 15, 2012 Slide 11

ti discharge that typically occurs during

mph, Reach temperatures of 30,000 C Carry

12 What is Lightning? Lighting is an atmospheric electrostatic t ti discharge that typically occurs during a thunder storm, but also during volcanic eruptions and dust storms. Lightning can : Reach speeds of 140,000 mph, Reach temperatures of 30,000 C Carry a current up to 18 ka Carry a charge of million volts November 15, 2012 Slide 12

British Standard BS EN 62305:2006 British Standard for lightning Protection was BS6651 from 1985 In

This resulted in a new suite of standards UK now 1 of 28 European countries that form CENELEC -

EN62305 Each European country has adopted a variation of EN62305 which are to be used in their own

Other non-eu countries might have their own national standard which would take precedence over

13 British Standard BS EN 62305:2006 British Standard for lightning Protection was BS6651 from 1985 In the last twenty years our understanding of the subject (and its effect) has increased. This resulted in a new suite of standards UK now 1 of 28 European countries that form CENELEC - (Electrical arm of Comite European de Normalisation) 4 Part standard produced under CENELEC produced EN62305 Each European country has adopted a variation of EN62305 which are to be used in their own country - Annexes BS EN 62305:2006 is the same as EN with modifications for National Annexes Other non-eu countries might have their own national standard which would take precedence over EN62305 If EN62305 is used in a non-eu country then the relevant Annexe shall be used BS6651 withdrawn in 2008 November 15, 2012 Slide 13

14 British Standard BS EN : Parts 1-4 November 15, 2012 Slide 14

15 Risk Management Procedure Identify the structure to be protected Identify the types of loss relevant to the structure to be protected Rn R1 Risk of loss of human life R2 Risk of loss of service to the public R3 Risk of loss of cultural heritage R4 Risk of loss of economic value For each loss to be considered, d identify and calculate the risk components Rx that make up the total risk Rn For each loss to be considered identify the tolerable level of risk Rt Calculate Rn = Rx Rn<=Rt Rt Yes No Install protection measures in order to reduce Rn November 15, 2012 Slide 15 For each loss to be considered identify the tolerable level of risk Rt

16 BS EN Part 2 risk assessment Have you carried out a BS EN Part 2 risk assessment? What are you going to do with the results? Any corrective actions! POLL 2 November 15, 2012 Slide 16

17 Notes about types of damage & types of losses D1: damage to living beings due to contact and step voltage D2: material damage (fire, explosion, mechanical destruction, release of chemical substances) due to the effect of the lighting current, including destructive discharges D3: system faults due to LEMP (lightning electromagnetic impulse) L1: loss of human life L2: loss of public service L3: loss of irreplaceable cultural heritage L4: economic loss, loss of the structure and its content November 15, 2012 Slide 17

The S1 effect of lightning S1 Lightning on the structure: this occurs when lightning hits the structure directly causing possible immediate mechanical damage, fires and/or

Damage Injury to living beings (D1) Physical damage caused by dangerous sparking inside the structure (D2) Failure of internal systems caused by LEMP (D3) Type of Loss Loss

18 The S1 effect of lightning S1 Lightning on the structure: this occurs when lightning hits the structure directly causing possible immediate mechanical damage, fires and/or explosions, damage to people due to step and contact voltages and faults or malfunctioning of internal systems due to LEMP (lightning electromagnetic impulse) Type of Damage Injury to living beings (D1) Physical damage caused by dangerous sparking inside the structure (D2) Failure of internal systems caused by LEMP (D3) Type of Loss Loss of human life (L1) Loss L of public service (L2) Loss of irreplaceable cultural heritage (L3) Economic loss, loss of the structure and its content (L4) November 15, 2012 Slide 18

The S2 effect of lightning S2 Lightning near the structure: this occurs when lightning hits near the structure (at a distance d ) causing possible faults or malfunctioning of internal systems due to

19 The S2 effect of lightning S2 Lightning near the structure: this occurs when lightning hits near the structure (at a distance d ) causing possible faults or malfunctioning of internal systems due to LEMP (lightning electromagnetic impulse) Type of Damage Failure of internal systems caused by LEMP (D3) Type of Loss Loss of human life (L1) Loss L of public service (L2) Economic loss, loss of the structure and its content (L4) November 15, 2012 Slide 19

The S3 effect of lightning Type of Damage Injury to living beings (D1) Physical damage caused by dangerous sparking inside the structure (D2) Failure of internal systems caused by LEMP (D3) S3

20 The S3 effect of lightning Type of Damage Injury to living beings (D1) Physical damage caused by dangerous sparking inside the structure (D2) Failure of internal systems caused by LEMP (D3) S3 Lightning i on services entering the structure: this occurs when lightning g does not hit the structure directly but the services entering the structure (telephone cables, antenna systems, electrical line etc...) causing possible fires and/ or explosions started by discharges due to surges and lightning currents transmitted by means of the entering service, damage to people due to contact voltages inside the structure and faults or malfunctioning of internal systems due to surges Type of Loss Loss of human life (L1) Loss of public service (L2) Loss of irreplaceable cultural heritage (L3) Economic E i loss, loss of the structure t and its content (L4) November 15, 2012 Slide 20

The S4 effect of lightning S4 Lightning near the services entering the structure: this occurs when lightning hits near the services entering the structure (at a distance d ) causing possible faults

21 The S4 effect of lightning S4 Lightning near the services entering the structure: this occurs when lightning hits near the services entering the structure (at a distance d ) causing possible faults or malfunctioning of internal systems due to surges Type of Damage Failure of internal systems caused by LEMP (D3) Type of Loss Loss of human life (L1) Loss L of public service (L2) Economic loss, loss of the structure and its content (L4) November 15, 2012 Slide 21

22 Lightning protection Buildings Process Plant Vs Structure Covered by Faraday cage... However Electronic Equipment Vulnerable from indirect strike November 15, 2012 Slide 22 Well defined Protects Building

23 Process plant vulnerability November 15, 2012 Slide 23

24 Typical exposure to risk November 15, 2012 Slide 24

25 BS EN risk assessment methodology Cable routing Number of cables Cable types Existing gprotection Size of structure / building Surrounding area Location November 15, 2012 Slide 25

26 HSE ALARP (As Low As reasonably Practicable) November 15, 2012 Slide 26

27 Industry Example... Line 3 Line 2 Line 1 Line 2 Line 3 Line 4 Line 5 Line 6 Power Unshielded and no bonding Instrumentation Instrumentation Instrumentation UPS Power supply Line 1 Line 6 Control Building Line 4 Line 5 Primary structure Structure ID: Primary Structure - Rectangular with a pitched hipped roof Lb m Length of primary structure Wb m Width of primary structure He 6.00 m Height to eaves of primary structure Hr 900m 9.00 Height to ridge of primary structure Environment Ng 0.04 Lightning flash density (Flashes/km²/year) Cd 0.25 Location factor Ce 0.00 Environmental factor Rho m Soil resistivity (Ohm metres) November 15, 2012 Slide 27

28 Typical assessment results Lightning i risk assessment for buildings Tolerable Risk Direct Strike Risk Indirect Strike Risk Calculated Risk RT RD RI RX Control Building 1 1 E E E E 05 Control Building 2 1 E E E E 05 Control Building 3 1 E E E E 05 Control Building 4 1 E E E E 05 What does this mean? November 15, 2012 Slide 28

29 Explanation of results R2_T and R3_T not applicable to a process plant November 15, 2012 Slide 29

30 Where might you fail? Examples Old Telecom Cables Multicore cables entering plant Power cables entering buildings No surge protection fitted November 15, 2012 Slide 30

31 Summary Process Plant to be treated differently to buildings. Risk assessment will be required Good chance of failing risk assessment for indirect strike But, you may be able to mitigate the risk by modifying / adapting existing kit Benefits Vs Cost. ALARP Use relevant Annexe if non-uk November 15, 2012 Slide 31

32 Question and answer session Please feel free to ask a question via your microphone / telephone by clicking on the raise hand button Or ask through the question panel November 15, 2012 Slide 32

33 Forthcoming webinars th October 2011 COMAH - For Recent Entrants 16 th November 2011 The Learning from Buncefield If you wish to book onto any of these forthcoming webinars or require more information please LTForums@gb.abb.com bb This Lightning Protection Webinar will be hosted on our website and a link will soon be available. November 15, 2012 Slide 33

34 Contact details John Jones Consultant Tel: Mobile: Ken Shepherd Process Automation Tel:

35 November 15, 2012 Slide 35

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