Installation How to protect a livestock agricultural ......Ref.: M9AO56 PRD / ST (IEC) International...

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How to protect a livestock agricultural building against the effects of lightning? Your needs This milk producing installation with fifty some heads includes a "stable", with a stock of hay, a milk processing room fitted out with semi-automatic milking machines, a pasturisation and refrigeration unit for conservation of the bacteriological qualities and taste of milk. The aim of devices for the protection against lightning is to limit the risks linked to fire and to protect equipment in order to guarantee product conformity with health and veterinary standards. This operation also includes a house that is fitted out with computer management equipment. Environment c This livestock farm: v is located in the mountains and has a high lightning density; moreover it is surrounded by very tall trees that attract lightning, v is supplied by a low voltage three-phase + neutral overhead line, v has a TN-S earthing system. c The local lightning density is high (Ng 1.6) c The equipment to be protected is expensive (500,000 Frs), and has: v a high impulse withstand voltage (Uchoc 4 kV) for devices of the motor, pump, compressor and lighting type, v a reduced impulse withstand votlage (Uchoc 1.5 kV) for computer equipment such as PC and printer c Protection of the power network against atmospheric voltage surges is ensured using modular surge arresters of the PRD type c The telephone installation includes a telephone fax and a minitel in connection with the local co-op and thus requires protection against lightning of the PRC series type. pasteurisation unit refrigeration hay barn packing cowshed dining room kitchen toilets living room bedroom 1 bedroom 2 emergency exit emergency exit cowshed stock air- lock milking room TGBT Application sheet tertiary: agricultural building Lightning Protection Solutions 06/01 M9FA13/A.en Service offer Institut Schneider de Formation The ISF is available to you for customer training in Cergy-Pontoise, Grenoble, in your region or within your company: c "Basic Modules" product sessions c "Surge arrester installation" sessions c Technical seminar days: "Lightning Protection" Schneider Services Schneider Electric offers professionals in the field of electricity and their customers, a whole range of services that accompagny all the product and system offers: c Preliminary lightning risk studies (as in the Order dated 28 January 1993) c MV and LV installation assessment c Preventive and corrective maintenance c Technical and troubleshooting assistance Partnerships To determine lightning strike density Ng (or keraunic level Nk) of your installation, contact the national meteorology departments. For information concerning the protection of your electrical installations against lighting, please contact your local Schneider agency: Sales contact As standards and equipment evolve from time to time, always ask for confirmation of the information given in this publication. Published by: MKT DABT, S2E Design and layout by: HeadLines (38) Merlin Gerin F-38050 Grenoble cedex 9 tel. +33 (0)4 76 57 60 60 telex: merge 320 842 F Schneider Electric This document was printed on ecological paper Product file Ref.: M9DT07 or Ref.: M9DT78 CD-Rom with HTML contents Promotional document Ref.: M9DP29 PRD / PF / PE (NF) Ref.: M9DP41 PRD / PF / PE (IEC) Ref.: M9DP42 PRD / ST (IEC) Calculation chart Ref.: M9DP39 PRD / PF / PE (NF) Ref.: M9DP40 PRD / PF / PE (IEC) Choice software Ref.: M9AO52 PRD / PF / PE (NF) Ref.: M9AO53 PRD / PF / PE (IEC) Ref.: M9AO54 PRD / ST (IEC) multimedia - Pre-AO Ref.: M9AO55 PRD / PF / PE (IEC) Ref.: M9AO56 PRD / ST (IEC) International c IEC 61024-1-1 (1993) and guide 1-2 (May 1998): protection of structures against lightning. c IEC 60364-4-443 and 5-534 (03/1999 and 11/1997): electrical installation of buildings. c IEC 61312-1 (1995): protection against electromagnetic lightning surges. Surge arrester communication tools LV Modular Surge Arresters technical guide Ref.: M9GT02 PRD / PF / PE (IEC) Ref.: M9GT03 PRD / ST (IEC) Technical collection Lightning and the protection of installations Ref.: MD1 FBR1F Cahier technique no. CT 179 "Voltage surges and surge arresters in LV, co-ordination of isolation in LV" Poster and press release See Product file Cat. no.: M9DT07 Installation standards France c NF C 15 100 of April 1995, section 443 and 534: "The installation of surge arresters is recommended for overhead LV supplies". c Surge Arrester Installation Guide UTE C15-443 of July 1996. Simpleset efficaces contre la foudre, ils font l’unanimité.

Transcript of Installation How to protect a livestock agricultural ......Ref.: M9AO56 PRD / ST (IEC) International...

  • How to protect alivestock agricultural building

    against the effects of lightning?

    Your needsThis milk producing installation with fifty some heads includes a "stable", with astock of hay, a milk processing room fitted out with semi-automatic milkingmachines, a pasturisation and refrigeration unit for conservation of thebacteriological qualities and taste of milk.The aim of devices for the protection against lightning is to limit the risks linkedto fire and to protect equipment in order to guarantee product conformity withhealth and veterinary standards.This operation also includes a house that is fitted out with computermanagement equipment.

    Environmentc This livestock farm:v is located in the mountains and has a high lightning density; moreover it issurrounded by very tall trees that attract lightning,v is supplied by a low voltage three-phase + neutral overhead line,v has a TN-S earthing system.c The local lightning density is high (Ng ≥ 1.6)c The equipment to be protected is expensive (≥ 500,000 Frs), and has:v a high impulse withstand voltage (Uchoc ≥ 4 kV) for devices of the motor,pump, compressor and lighting type,v a reduced impulse withstand votlage (Uchoc ≤ 1.5 kV) for computerequipment such as PC and printerc Protection of the power network against atmospheric voltage surges isensured using modular surge arresters of the PRD typec The telephone installation includes a telephone fax and a minitel in connectionwith the local co-op and thus requires protection against lightning of the PRCseries type.

    pasteurisation unit

    refrigeration

    hay barn packing

    cowshed

    dining room

    kitchentoilets

    livingroom

    bedroom 1 bedroom 2

    emergency exitemergency exit

    cowshed

    stock

    air-lock

    milking room

    TGBT

    Ap

    plic

    atio

    n s

    hee

    tte

    rtia

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    gri

    cult

    ura

    l bu

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    LightningProtectionSolutions

    06/01M9FA13/A.en

    Service offer Institut Schneider de FormationThe ISF is available to you for customer training inCergy-Pontoise, Grenoble, in your region or withinyour company:c "Basic Modules" product sessionsc "Surge arrester installation" sessionsc Technical seminar days: "Lightning Protection"

    Schneider ServicesSchneider Electric offers professionals in the field ofelectricity and their customers, a whole range ofservices that accompagny all the product andsystem offers:c Preliminary lightning risk studies(as in the Order dated 28 January 1993)c MV and LV installation assessmentc Preventive and corrective maintenancec Technical and troubleshooting assistance

    Partnerships To determine lightning strike density Ng (or keraunic level Nk) of your installation, contact the nationalmeteorology departments.

    For information concerning the protection ofyour electrical installations against lighting,please contact your local Schneider agency:

    Sales contact

    As standards and equipment evolve from time to time, alwaysask for confirmation of the information given in this publication.Published by: MKT DABT, S2EDesign and layout by: HeadLines (38)

    Merlin GerinF-38050 Grenoble cedex 9tel. +33 (0)4 76 57 60 60telex: merge 320 842 F

    Schneider Electric This document was printedon ecological paper

    Product fileRef.: M9DT07 orRef.: M9DT78 CD-Romwith HTML contents

    Promotional documentRef.: M9DP29 PRD / PF / PE (NF)Ref.: M9DP41 PRD / PF / PE (IEC)Ref.: M9DP42 PRD / ST (IEC)

    Calculation chartRef.: M9DP39 PRD / PF / PE (NF)Ref.: M9DP40 PRD / PF / PE (IEC)

    Choice softwareRef.: M9AO52 PRD / PF / PE (NF)Ref.: M9AO53 PRD / PF / PE (IEC)Ref.: M9AO54 PRD / ST (IEC)

    multimedia - Pre-AORef.: M9AO55 PRD / PF / PE (IEC)Ref.: M9AO56 PRD / ST (IEC)

    Internationalc IEC 61024-1-1 (1993) and guide 1-2 (May 1998):protection of structures against lightning.c IEC 60364-4-443 and 5-534(03/1999 and 11/1997): electrical installation ofbuildings.c IEC 61312-1 (1995): protection againstelectromagnetic lightning surges.

    Surge arrestercommunicationtools

    LV Modular Surge Arresterstechnical guideRef.: M9GT02 PRD / PF / PE (IEC)Ref.: M9GT03 PRD / ST (IEC)

    Technical collectionLightning and the protection ofinstallationsRef.: MD1 FBR1F

    Cahier technique no. CT 179"Voltage surges and surge arrestersin LV, co-ordination of isolation in LV"

    Poster and press releaseSee Product file Cat. no.: M9DT07

    Installationstandards

    Francec NF C 15 100 of April 1995, section 443 and 534:"The installation of surge arresters is recommendedfor overhead LV supplies".c Surge Arrester Installation Guide UTE C15-443 ofJuly 1996.

    Conformes aux nouvelles normes CEI 61643-11

    class 2 test et NFC 61-740/95, ils garantissent

    une protection efficace et durable

    des équipements électriques.

    Les gammes PRD, PF, PE, PRC et PRI

    vous offrent un large choix de protection selon

    le niveau d’exposition du site aux surtensions

    atmosphériques et selon le type de récepteurs

    à protéger.

    Parafoudres modulairesMerlin Gerin

    Simples et efficacescontre la foudre,

    ils font l’unanimité.

  • MERLIN GERIN

    multi 9ID si

    23315

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    I∆c 10 000AIm 630A

    MERLIN GERIN

    multi 9C60NC25400Va6000

    24204

    O -O -

    10kA IEC 947.2

    1 3

    2 4

    PF65/PF65r PRD65/PRD65r

    Secondary protection LVPF8 PRD8

    MERLIN GERIN

    multi 9PF8

    15695

    InImaxUp(LN/ )Up(L/N)Uc

    2kA (8/20)8kA (8/20)

    1,5kV1kV

    250/440V

    MERLIN GERIN

    C65r-275Imax:65kA(8/20)In:20kA(8/20)Up:1,5kVUc:275V

    multi 9PRD

    if redreplace

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    14 11 12

    1655

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    MERLIN GERIN

    C Neutral r

    multi 9PRD

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    (kV)

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    MERLIN GERIN

    C65r-275Imax:65kA(8/20)In:20kA(8/20)Up:1,5kVUc:275V

    multi 9PRD

    if redreplace

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    MERLIN GERIN

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    MERLIN GERIN

    multi 9PF65r

    15384test

    InImax

    Up(LN/ )Uc

    20kA (8/20)

    65kA (8/20)

    100kA (4/10)2kV

    440V

    MV/LV transformer

    C6050 A

    PRD65 kA

    C6020 A

    PRD8 kA

    C6020 A

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    MSBagriculturalbuilding

    house stable productionunit

    Solutions Schneider and electricblock diagramc Since the operation entails several buildings, it isimportant to foresee the interconnection of theearthing systems in order to obtain goodequipotential bonding and to guarantee theeffeciency of surge arrester protection devicesc The main distribution cabinet (MSB) which isinstalled in the agricultural building's workshop hasan incoming surge arrester with an Imax = 65 kA.Other secondary surge arresters are installed insub-division enclosures in the home, stable and milkproduction units.

    Role of surge arrester protectionc Run off the lightning current to the ground,guaranteeing a level of protection Up that iscompatible with the electric equipment to beprotectedc Limit the rise in the earth's voltage and theinduced magnetic field.

    Wiring recommendationsc Make sure that frames and earths areequipotentially bonded in each building and thatthey are interconnectedc Reduce loop surfaces of supply cables.

    Installation recommendationsc Install an incoming surge arrester with anImax = 65 kAc A disconnection circuit-breaker associated witheach surge arrester is to be foreseenc An RCCB of the "si" type should be foreseen fornuisance trippingc Install a surge arrester of the PRC series type onthe telephone line.

    Communication networks protectionPRC series

    16593

    1 3 51 3 5

    Imax :10kA (8/20)In :5kA (8/20)Up :300VUn :200V

    MERLIN GERIN

    multi 9PRC

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    telephon network

    PRC

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    24

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    ID "si" super-immunisedresidual currentcircuit-breaker

    C60/C120disconnection circuit-breaker

    heating

    lighting

    sockets

    refrigerater

    wahsingmachine

    hot water

    oven computerequipment

    lighting

    sockets

    extra feeder

    pasturisation

    lighting refrigeration

    milking

    compressor

    workshop socket lighting