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nvent ERICO System 3000, Инструкция по установке, эксплуатации и обслуживанию, Страница: 45 / 56

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nVent.com/ERICO  |  45

Figure 

36

: Grounding and downconductor continuity testing

Figure 

37

: Grounding and downconductor continuity testing

To Upper 

Termination

2

.

5

 mm

2

 (

12

 AWG) 

Wire Temporarily 

Disconnected

Ground Resistance 

Meter

Lightning Protection 

 Downconductor  (Disconnected 

from  Lightning Protection Ground)

Structure Bonding Cable  

(Disconnected from Lightning 

 Protection  Ground)

Lightning Protection 

 Grounding  System

To Upper 

Termination

2

.

5

 mm

2

 (

12

 AWG) 

Wire Temporarily 

Disconnected

Ground Resistance 

Meter

LP   Downconductor 

(Disconnected from 

 LP  Ground)

Structure Bonding Cable  

(Disconnected from L P Ground)

LP  Grounding System

A

Remove the waterproofing 

mastic from the lower 

termination to expose the 

connection.

A

Содержание ERICO System 3000

Страница 1: ...nVent com ERICO 1 nVent ERICO System 3000 Installation Operation and Maintenance Manual...

Страница 2: ...llation Operation and Maintenance Manual Due to ongoing research into the phenomena of lightning and lightning protection technology and product improvement nVent ERICO reserves the right to alter any...

Страница 3: ...unding Systems 11 Bonding the Lightning Protection Ground to Other Service Grounds 11 Conductor to Grounding System Connection 12 Labelling 12 Ericore Downconductor 13 Downconductor Hauling 13 Penetra...

Страница 4: ...for Long Lengths of Ericore Downconductor 35 Telecom Towers 35 Buildings 35 Proposed Ericore Lengths 35 Ericore Maximum Lengths 37 Installation Methods for Ericore Exceeding 70 m 37 Parallel Splicing...

Страница 5: ...employs additional lightning parameters in its striking distance formulae namely electric field intensification factor and structure height and physical shape The formula in the CVM also takes into a...

Страница 6: ...ance 4 Improper installation misuse misapplication or other failure to completely follow nVent ERICO s instructions and warnings may cause product malfunction property damage serious bodily injury and...

Страница 7: ...LLATION Before installation perform following inspection Terminal s nVent ERICO Dynasphere terminals have not been dented The correct finial tip has been installed based on the overall height of the a...

Страница 8: ...ith authorities having juristiction Available space location Natural soil conditions including resistivity moisture temperature and chemical content Location of underground services Power Communicatio...

Страница 9: ...opper conductors are welded to the ground rods using Cadweld The copper tape or 2 0 copper conductor are encased in Ground Enhancement Material GEM25A Conductive Saddles Ericore Cable Inspection Well...

Страница 10: ...tor Inspection Well Lower Termination Enclose in Weatherproofing Mastic Copper Ground Tape Typical lengths minimum of 5 m 17 ft Lengths are dependant upon soil resistivity reading 600 mm 24 in depth o...

Страница 11: ...nd supplied when the existing soil mass has a high resistivity GEM25A can be used to increase the total surface area of grounding conductors thereby reducing the ground resistance impedance GEM25A req...

Страница 12: ...system connection to the grounding system at the first available opportunity The practice of running nVent ERICO Ericore downconductor for long horizontal lengths at the ground level to reach a desig...

Страница 13: ...its performance It is VERY IMPORTANT that when removing these tubes they are not removed with a knife or cut in any way as this will damage the outer layer of the termination e g It is suggested that...

Страница 14: ...nated end hauled from the ground to the top of the structure Downconductor preterminated end on the inside of the drum DO NOT cut plastic cover over terminated downconductor as this may damage the ter...

Страница 15: ...ssure seal etc use a standard professional method of protection Figure 8 Correct incorrect cable routing methods Routing The route taken by the downconductor is very important and must follow these ru...

Страница 16: ...m 20 in is maintained Parallel routing with other services Minimum separation 2 m 80 in Try to isolate as much as possible from other services If the downconductor must cross other services ensure tha...

Страница 17: ...t one turn If the downconductor is damaged during installation it is no longer usable and must be replaced Securing the Downconductor Securing of the downconductor not only provides a mechanical attac...

Страница 18: ...ing to other structures such as angle iron i e radio towers structural beams etc use nVent CADDY brand of beam clamps and suitable cable clamps from nVent ERICO If the downconductor is to be routed ab...

Страница 19: ...stributor Structure Bonding Braid To ensure that the upper end of the downconductor can be adequately electrically bonded to the structure a Structure Bonding Braid has been provided at the base of th...

Страница 20: ...UST be secured with nVent ERICO brand of saddles to the mast at 1 m 40 in intervals max The mast in turn must be electrically bonded to the nearest conductive structural point In this case the structu...

Страница 21: ...oncrete reinforcing Structural Steel Work To upper termination kit bonding braid or mast base Cadweld bolted or other suitable electrically bonded method To upper termination kit bonding braid or mast...

Страница 22: ...ents salt or acid atmosphere Warning Do not install the nVent ERICO Dynasphere without installing the correct finial tip Ensure the air terminal is supplied with the finial tip secured in place There...

Страница 23: ...ure 18 Mast Wind Loading nVent ERICO does not warrant the installation of the nVent ERICO System 3000 only the components All installations approved by nVent ERICO Engineering are listed in nVent ERIC...

Страница 24: ...it point The maximum mast diameter that the inline coupling is able to clamp onto is 70 mm 2 in OD On both U bolt connectors and in line couplers the maximum torque is 55 kg cm 45 in lb Figure 18 Base...

Страница 25: ...o suit the application The guying material is made up of light weight plastic coated fiberglass which is non conductive If a customized guy kit has been supplied then the actual guy length can be dete...

Страница 26: ...60 from horizontal It is recommended that 8 mm in diameter stainless steel guying saddles are used for the base guy anchor points If these are to be anchored to a concrete surface then 6 mm in diamet...

Страница 27: ...he lift before attempting it If the mast is to be raised by hand ensure that it can be safely and easily managed manually It is recommended that the use of a crane or other suitable equipment be used...

Страница 28: ...lifting i e if the cable exits from the mast base it must be protected and not used as the pivot point for the mast Maintain a minimum bending radius of 500 mm 20 in The mast can be easily and safely...

Страница 29: ...e structure bonding cable has been attached correctly The nVent ERICO Dynasphere terminal is NOT used as a slinging point When slinging the mast ensure that the slings or ropes can not foul the nVent...

Страница 30: ...window for easy counter reading The Lightning Event Counter is a device for registering and recording the number of strikes that the nVent ERICO System 3000 has intercepted The nVent ERICO LECV is th...

Страница 31: ...system is neglected or poorly implemented the pipes tanks scaffolds and catwalks may develop dangerous potential differences and generate sparks which can cause explosions Conventional Cable as the Do...

Страница 32: ...nductors Using the Mast as a Downconductor A stainless steel mast system is the preferred method recommended by nVent ERICO for installation of the System 3000 with conventional conductor nVent ERICO...

Страница 33: ...the nVent ERICO System 3000 to the structure nVent ERICO manufactures components to assemble this type of system with utility poles and other shorter free standing masts For these applications single...

Страница 34: ...olves a long single length of Ericore cable additional measures may be needed to ensure that the voltage build up will not exceed the voltage withstand rating of the cable during a lightning strike Wh...

Страница 35: ...stance The following examples give typical guidance TELECOM TOWERS Most towers would be less than 70 m 230 ft or so in height so that a single Ericore downconductor would suffice However where the tow...

Страница 36: ...ay level at the proposed installation site A single length of nVent ERICO Ericore is acceptable No additional action is required Additional measures ae required Read on further in this section Figure...

Страница 37: ...ethods to extend the length of Ericore 1 Parallel splicing use two Ericore cables in parallel with the Dual Terminal Adaptor kit that allows you to install two Ericore cables at the top of the mast Se...

Страница 38: ...tightened with the provided bolt Each Ericore cable shall exit their respective inline couplers and be affixed to the mast assembly by stainless steel straps at the normal interval of at least every...

Страница 39: ...see Figure 29 In some installations both lugs can be directly connected to a suitable conductive structural point but in some installations it will be more convenient to connect both lugs to a small...

Страница 40: ...ands and Double Tape Layer 85 mm 3 in Inspection Well Downconductor lower termination bound in waterproofing mastic Ground Rod LECV LEC V LIGHTNING EVENT COUNTER YY MM DD 00 00 00 00 0 00 Hrs Set OK C...

Страница 41: ...the grounding system Refer to the lower termination installation manual for more details The lower termination consists of many intricate steps that have to be followed precisely to assemble lower ter...

Страница 42: ...n the cable and bring it safely to the grounding system Refer to the upper termination installation manual for more details The upper termination consists of many intricate steps that have to be follo...

Страница 43: ...in height of the nVent ERICO Dynasphere 2 Inspect the nVent ERICO Dynasphere to ensure that it is not dented or physically damaged in any way Operation and Maintenance 3 Inspect the finial tip on top...

Страница 44: ...stem then measure record in column 3 of ground resistance readings G At the lower termination of the downconductor disconnect the 2 5 mm2 12 AWG bonding wire from under the hose clamp H With a multime...

Страница 45: ...tor Disconnected from Lightning Protection Ground Structure Bonding Cable Disconnected from Lightning Protection Ground Lightning Protection Grounding System To Upper Termination 2 5 mm2 12 AWG Wire T...

Страница 46: ...ure Bonding Cable Disconnected from L P Ground LP Grounding System Figure 38 Grounding and downconductor continuity testing B C Disconnect the downconductor from the grounding system B If possible dis...

Страница 47: ...downconductor continuity testing I H G At the lower termination of the downconductor disconnect the 2 5 mm2 12 AWG bonding wire from under the hose clamp G If possible measure the continuity between...

Страница 48: ...able Disconnected from L P Ground LP Grounding System Figure 42 Grounding and downconductor continuity testing Figure 43 Grounding and downconductor continuity testing Reconnect the 2 5 mm2 12 AWG bon...

Страница 49: ...orage real time display analysis report generation and system configuration 3 Point Fall of Potential measurement with manual or automatic frequency selection EST4630 Measures ground resistance 2 and...

Страница 50: ...round electrode under test To test the accuracy of the results and to ensure that the ground stakes are outside the spheres of influence reposition the inner stake probe 1 meter in either direction an...

Страница 51: ...tor to safely convey the lightning energy to ground while minimizing side flashing Diameter 36 mm 1 in Weight 1 2 kg m 13 oz ft FRP Mast Purpose designed Fiberglass Reinforced Plastic manufactured fro...

Страница 52: ...Weight 0 36 kg 0 794 lb Terminal Lug Coupling The terminal lug coupling allows for connection of a conventional downconductor such as 25 mm x 3 mm copper tape bar to the Dynasphere See Upper Terminati...

Страница 53: ...teel 316 Length 114 5 mm 4 in Thickness 1 2 mm in Fixing Hole Diameter 6 mm in Width 25 5 mm 1 in Stainless Steel Cable Tie Purpose designed cable ties for securing of Ericore downconductor to the mas...

Страница 54: ...to the structure earth or has a substantial metallic mass Fastenings Bolts screws masonry anchors or other hardware used to secure anchors to the structure FRP Fiberglass Reinforced Plastic Insulated...

Страница 55: ...nVent com ERICO 55...

Страница 56: ...nd logos are owned or licensed by nVent Services GmbH or its affiliates All other trademarks are the property of their respective owners nVent reserves the right to change specifications without notic...

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