EARTHING & LIGHTING PROTECTION

Transcription

1 EARTHING & LIGHTING PROTECTION RELIABLE CONNECTION SOLUTIONS THE GLOBAL SPECIALIST IN ELECTRICAL AND DIGITAL BUILDING INFRASTRUCTURES

2 Introduction Legrand Seico, an ISO certified and approved vendor in the whole GCC, has proven to be the ideal choice in providing effective, efficient and reliable solutions in Earthing and Lighting. Since 1990 Legrand Seico has been providing technical, logistical and sales support with over 50 distributors covering the GCC. Legrand Seico examines every step in the manufacturing process and applies strict procedures to ensure the highest possible quality in every product. An R&D team has been put in place to offer installers and engineers innovative products that combine reliability, safety and value. With three manufacturing facilities in Saudi Arabia to cope with the high demand on Earthing and Lighting. Legrand Seico is setting the pace in product innovation, quality control and timely delivery. We value our pride in the trust and satisfaction earned from our esteemed customers which positioned us as a leader as we persist on providing the utmost level of quality products and services to the market.

3 WHY IS LIGHTNING PROTECTION IMPORTANT? Lightning is a natural flow of static electricity between the sky and the ground. It strikes buildings, structures, trees, livestock and persons in all parts of the world. Although it rarely occurs in some areas, it is a severely destructive hazard whose destructive force is beyond human scale. The damage from lightning comes from electrocution, human burns, burning buildings, explosions, melted or damaged electrical equipment and stresses on electrical equipment that are responsible for failures. An effective earthing system is a fundamental requirement of any modern structure or system for operational and/ or safety reasons. Without such a system, the safety of a structure, the equipment contained within it and its occupants is compromised. In order to preserve resources and human lives a reliable lightning protection system must be set in place and must be taken into account during the planning stage of any project. A reliable lightning protection system intercepts lightning strikes and attempts to guide the static electic flow down a chosen path, slightly away from the people, structures and electrical equipment. It provides means to carry electric currents into the earth under normal and fault conditions without exceeding any operating and equipment limits or adversely affecting continuity of service and assure that a person in the vicinity of grounded facilities is not exposed to the danger of critical electric shock. SEICO EARTHING AND LIGHTNING PROTECTION SYSTEM The SEICO Earthing and Lightning System provide a dependable structure to protect resources from such hazards. We offer a products made from highly conductive materials and with high resistance to corrosion to achieve a sustainable connection to earth.

4 We provide the entirety of the devices needed in installing an effective and reliable Earthing and Lightning Protection System on or in the structure to be protected. Enabling clients to install an economical system that will intercept and discharge static electric flow into the earthing system. Our system is composed of: a) Interception Devices (Air Termination System) A system designed to capture lightning strikes to a specified and selected attachment point. d) Exothermic Welding System Creates a permanent bond that is capable of withstanding repeated fault currents and abnormal heating due to a high fault current. Whether you need a full Earthing and Lightning Protection System for a major construction project or you need your annual system maintenance replacement, your job will be handled with the same care and attention we give to all our work. b) Down Conductors Electrically conductive connection between the interception device and the earth system directing the discharge current safely to ground with minimal risk from sideflashing. c) Earth System An essential part of the lightning protection system, the low impedance ground dissipates the energy into the ground. Minimizing the ground voltage potential rise therefore lessening the risk of injury to the occupants and damage to equipment. 2

5 Table of Contents LIGHTNING PROTECTION EARTHING PROTECTION EXOTHERMIC WELDING

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7 Length Material Plating Color Circular Conductor Conductor Diameter Conductor Size Conductor Width Flat Conductor Conductor Thickness 5

8 LIGHTNING PROTECTION SYSTEM Tape Conductor Connection AIR TERMINAL MULTIPLE POINT SEICO CODE ROD DIAMETER MATERIAL ATMP-D8C 015mm Copper AIR TERMINAL SEICO CODE ROD LENGTH ROD DIAMETER ROD MATERIAL AIR TERMINAL BASE SEICO CODE CONDUCTOR WIDTH ROD DIAMETER THREAD SIZE MATERIAL See STANDARD DIMENSION for reference code. Shown are standard sizes, other sizes are available upon request. 6

9 Lightning Protection System Tape Conductor Connection AIR TERMINAL RIDGE SADDLE SEICO CODE ROD DIAMETER CONDUCTOR WIDTH MATERIAL ATMP-D810C 015mm 31mm Copper AIR TERMINAL FIXING BRACKET TO TAPE COUPLING SEICO CODE ROD DIAMETER MATERIAL AIR TERMINAL TO TAPE COUPLING SEICO CODE ROD DIAMETER MATERIAL See STANDARD DIMENSION for reference code. Shown are standard sizes, other sizes are available upon request. 7

10 Lightning Protection System Tape Conductor Connection DC TAPE CLIP BARE COPPER DC TAPE CLIP (BCDTC) TAPE CLIP See STANDARD DIMENSION for reference code. Shown are standard sizes, other sizes are available upon request. 8

11 Lightning Protection System Tape Conductor Connection SQUARE TAPE CLAMP OBLONG TEST OR JUNCTION CLAMP PLATE TYPE TEST CLAMP See STANDARD DIMENSION for reference code. Shown are standard sizes, other sizes are available upon request. 9

12 Lightning Protection System Tape Conductor Connection SCREWDOWN TEST CLAMP BARE COPPER TAPE See STANDARD DIMENSION for reference code. Shown are standard sizes, other sizes are available upon request. 10

13 Lightning Protection System Tape Conductor Connection SQUARE TAPE CLAMP OBLONG TEST OR JUNCTION CLAMP PLATE TYPE TEST CLAMP See STANDARD DIMENSION for reference code. Shown are standard sizes, other sizes are available upon request. 11

14 Lightning Protection System Tape Conductor Connection SCREWDOWN TEST CLAMP BARE COPPER TAPE See STANDARD DIMENSION for reference code. Shown are standard sizes, other sizes are available upon request. 12

15 Lightning Protection System Solid Circular Conductor Connection SQUARE TAPE CLAMP OBLONG TEST OR JUNCTION CLAMP PLATE TYPE TEST CLAMP See STANDARD DIMENSION for reference code. Shown are standard sizes, other sizes are available upon request. 13

16 Lightning Protection System Solid Circular Conductor Connection JOINTING PARALLEL CLAMP TEE JOINT SOLID CONDUCTOR CLAMP TEST SOLID CONDUCTOR CLAMP See STANDARD DIMENSION for reference code. Shown are standard sizes, other sizes are available upon request. 14

17 Lightning Protection System Solid Circular Conductor Connection RE-BAR CLAMP TOWER EARTH CLAMP SOLID CIRCULAR CONDUCTOR See STANDARD DIMENSION for reference code. Shown are standard sizes, other sizes are available upon request. 15

18 Lightning Protection System Wire Conductor Connection AIR TERMINAL FLAT SADDLE AIR TERMINAL FIXING BRACKET TO CABLE COUPLING AIR TERMINAL TO CABLE COUPLING See STANDARD DIMENSION for reference code. Shown are standard sizes, other sizes are available upon request. 16

19 Lightning Protection System Wire Conductor Connection ONE HOLE CABLE CLIP HEAVY DUTY CABLE SADDLE TEST CONDUCTOR CLAMP See STANDARD DIMENSION for reference code. Shown are standard sizes, other sizes are available upon request. 17

20 Lightning Protection System Wire Conductor Connection SQUARE CONDUCTOR CLAMP TOWER EARTH CLAMP STRANDED COPPER CONDUCTOR See STANDARD DIMENSION for reference code. Shown are standard sizes, other sizes are available upon request. 18

21 EARTHING PROTECTION SYSTEM Earth Rods COPPER BOND THREADED EARTH RODS EARTH ROD COPPER BOND DRIVING STUD EARTH ROD THREADED COUPLING See STANDARD DIMENSION for reference code. Shown are standard sizes, other sizes are available upon request. 19

22 Earthing Protection System Earth Rods COPPER BOND UNTHREADED EARTH RODS EARTH ROD UNTHREADED COUPLING See STANDARD DIMENSION for reference code. Shown are standard sizes, other sizes are available upon request. 20

23 Earthing Protection System Earth Rods SOLID COPPER AND STAINLESS STEEL THREADED EARTH RODS EARTH ROD SOLID DRIVING STUD EARTH ROD SPIKE EARTH ROD DOWEL COUPLING See STANDARD DIMENSION for reference code. Shown are standard sizes, other sizes are available upon request. 21

24 Earthing Protection System Earth Plates SOLID COPPER EARTH PLATE LATTICE COPPER EARTH PLATE CONCRETE INSPECTION PIT See STANDARD DIMENSION for reference code. Shown are standard sizes, other sizes are available upon request. 22

25 Earthing Protection System Earth Rod Clamps EARTH ROD TO TAPE CLAMP EARTH ROD TO CABLE CLAMP EARTH ROD U-BOLT CLAMP See STANDARD DIMENSION for reference code. Shown are standard sizes, other sizes are available upon request. 23

26 Earthing Protection System Earth Rod Clamps SOLID COPPER EARTH PLATE LATTICE COPPER EARTH PLATE CONCRETE INSPECTION PIT See STANDARD DIMENSION for reference code. Shown are standard sizes, other sizes are available upon request. 24

27 Earthing Protection System Bonds and Clamps EARTH ROD TO TAPE CLAMP EARTH ROD TO CABLE CLAMP EARTH ROD U-BOLT CLAMP See STANDARD DIMENSION for reference code. Shown are standard sizes, other sizes are available upon request. 25

28 Earthing Protection System Bonds and Clamps FLEXIBLE COPPER EARTH BRAID TOWER EARTH CLAMPS STATIC EARTH RECEPTACLE See STANDARD DIMENSION for reference code. Shown are standard sizes, other sizes are available upon request. 26

29 Earthing Protection System Earth Points SINGLE HOLE EARTH POINT TWO HOLE EARTH POINT FOUR HOLE EARTH POINTS See STANDARD DIMENSION for reference code. Shown are standard sizes, other sizes are available upon request. 27

30 Earthing Protection System Bonds and Clamps COPPER EARTH BAR BASED EARTH BAR EARTH BAR WITH SINGLE DISCONNECTING LINK See STANDARD DIMENSION for reference code. Shown are standard sizes, other sizes are available upon request. 28

31 Earthing Protection System Earth Points EARTH BAR WITH TWIN DISCONNECTING LINK DISCONNECTING LINK ACCESSORIES See STANDARD DIMENSION for reference code. Shown are standard sizes, other sizes are available upon request. 29

32 Earthing Protection System Additional Requirements FLEXIBLE COPPER BRAID COMPRESSION LUGS FLAT FLAT PLATE PLATE BAR BAR See STANDARD DIMENSION for reference code. Shown are standard sizes, other sizes are available upon request. 30

33 EXOTHERMIC SEICOWELD SYSTEM MOULD SPECIFICATION Grounding Connection Specifications All grounding connections of copper-copper or copper-stell conductors 10mm 2 and larger size shall be connected with exothermic welding and this is considered as a continuous conductor, as stated in the note accompanying NEC , , , and IEEE Standard The SEICOWELD Process The SEICOWELD exothermic welding process is a simple, self contained method of forming high quality electrical connections. The compact process requires no external power or heat source, making it completely portable. SEICOWELD connections are made inside a semi-permanent graphite mould using the high temperature or powdered copper oxide and aluminum. Mould Cover Starting Powder Weld Powder Steel Disc Tap Hole Graphite Mould Weld Cavity Cables Weld Cavity The majority of SEICOWELD connections have at least twice the cross sectional area of the conductors being joined, and an equivalent or greater current carrying capacity. Because the connection is a fusion of high conductivity (high copper contect alloy) it will withstand repeated fault currents, and will not losen in the way that mechanical connectors can. Due to the alloys very high copper content (in excess of 90%) is corrosion resistance too. 31

34 Exothermic Weld System MOULD INSPECTION & INSTALLATION GUIDELINES VERTICAL SPLIT MOULD Mould parting face smooth Chip in mould parting face Disk seat worn Mould parting face has erosion lines Tap hole well defined Weld cavity well defined Chip in weld cavity Cable opening worn GOOD REPLACE The SEICOWELD connection mould is designed to last for an average of 100 connections. This will very according to the care given to the mould during use. To determine if a mould should be replaced, regularly inspect the following checkpoints. CABLE OPENING The Cable should be fit for the hole. A loose fit will cause leakage of weld powder. The opening should not be crack or worn out. WELD CAVITY The cavity should be well defined. There should be no chips or gouges. TAP HOLE The tap hole should be well defined. DISK SEAT The seat should not be worn or cracked. The disk must seat properly. MOULD PARTING FACE The parting face should be cleaned by shop towel or newspaper. Wire brush should not be used in cleaning the mould, this will cause defect and might destroy the mould. 32

35 Exothermic Weld System WELD CONNECTION MAKING OF SEICOWELD CONNECTION When making a copper wire connection of ground rod or other material connection, put the SEICOW- ELD powder into the graphit mould. Just ignite to start the welding process. The result will be clean and smooth connection surface, which has been field proven. It is also applied for other metal, such as : Iron, Steel, Railway track, Wrought and Cast Iron, Bronze, Nichrome and Bronze. SEICOWELD exothermic welding can be used in various applications to have certainly goods connections in work. Many projects trust in SEICOWELD such as: Lightning and Surge Protection Grounding in Electrical Works Railway Construction Cathodic Construction Another High Capacity of Current Supply SEICOWELD offers different types of mould. There are One Time Mould and Graphite Mould with different shapes to suit different welding works. ONE TIME MOULD is made of ceramic suitable for One off welding work. GRAPHITE MOULD is made of high quality graphite suitable for high quality welding work and can be used for several times and which has the following advantages: A smooth metal connection that will not loosen or corrode. It is not affected by high current surge or over current. No need for external welding machine. Use only lightweight and cheap equipment. Virtually maintenance free. 33

36 Exothermic Weld System SEICO MOULD PARTS AND CROSS-SECTION 34

37 Exothermic Weld System SEICOWELD ACCESSORIES MOULDS HANDLE CLAMP HANDLE CLAMP (SHC-1) This is made of graphite block, a heat resistance material which normally welds an average of 70 to 100 connections under normal size. This is used for opening and closing the mould. The handle clamp (HC) are of two types depending on the mould size (HC-M & HC-L). For welding cables on steel pipes, the handle clamp SHC-1 is especially designed to fit solid moulds. IGNITION LIGHTER CARD CLOTH BRUSH MOULD BRUSH MOULD SCRAPER For safety and quick For easy cleaing of the For cleaning safely the For removing easily the ignition of the starting conductor before welding. inner part of the mould. stages which accumu- powder. Standard flint (CCB) (MB) lated the crucible. (MS) replacement are suitable. (IL) 35

38 Exothermic Weld System WELDING INSTRUCTION Step1: When using insulated cables, remove first 150mm of the isolation of the conductor and all the dust and oxydes is to cleaned properly by mould brush, and/or cardcloth brush. Step2: Preheat the welding mould with a welding torch or ignite a box of weld powder in order to remove the moisture before starting the first weld. Step3: Connect the handle clamp to the hole and separate the two arms to open the mould, then fit the conductors and leave 5-6mm gap on the other conductor. Step4: Close the mould with the handle clamp and put the STEEL DISC on the taphole, the conical side of the disc should be at the bottom. Step5: Pour the weld powder, which is on the upper portion of the powder box, into the crucible. Step6: On the bottom of the powder canister, you can see the ignition powder, put it on the lip of the crucible and on the top of the weld powder for easy ignition. Step7: Ignite the flint ignitor from aside the ignition powder. Pull away the flint ignitor once it ignited to avoid damage. 36 Step8: After one minute, separate the two arms of the handle clamp to open completely the mould in order for the welded parts tube to be removed. Extra care should be taken so as not to damage the mould. Step9: Clean completely the mould by using mould scraper and by mould brush,m you can continue welding as long as the mould is still warm.

39 Exothermic Weld System INFORMATION EXOTHERMIC WELDING MOULDS are designed and manufactured to fit different type and size of Copper Conductors, Earth Rods and Concrete Steel Rebars. Above are the following conductor selection, any other type or size not mentioned can be provided, just give us your details. HOW TO ORDER: Choose the appropriate required connection from our SEICOWELD Connection Chart. Check your run cable size. The cell wherein the two selection meet, shows the powder size needed to carry out the connections. Example: If you require CABLE to CABLE (Straight Horizontal) with 35mm 2 and 150mm 2 Conductor, You have to order as follows: 1) CC - L (Mould Catalogue No.) 2) P - 90 (Powder Catalogue No.) See table for clarification. 37

40 Exothermic Weld System Cable to Cable Connection ONE SIDE HORIZONTAL (CP-AR) TEE TOP HORIZONTAL (CP-T) CROSS SIDE HORIZONTAL (CP-TS) STRAIGHT VERTICAL (CP-V) ONE SIDE VERTICAL (CP-VS) VERTICAL PARALLEL (PP-V) 38

41 Exothermic Weld System Cable to Cable Connection 39

42 Exothermic Weld System Cable to Rod / Rod to Rod Connection STRAIGHT HORIZONTAL (CC-L) DOUBLE HORIZONTAL (CC-DPH) TEE HORIZONTAL (CC-TH) HORIZONTAL CROSS (CC-X) TEE VERTICAL (CC-TV) HORIZONTAL CROSS TAP (CC-XS) 40

43 Exothermic Weld System Cable to Rod / Rod to Rod Connection 41

44 Exothermic Weld System Cable to Concrete Steel Re-Bar Connection HORIZONTAL CROSS TAP (CR-XS) TEE HORIZONTAL (CR-TH) SINGLE PARALLEL (CR-TP) CROSS VERTICAL (CR-PV) TEE VERTICAL (R-TL) CROSS SIDE HORIZONTAL (R-PH) 42

45 Exothermic Weld System Cable to Concrete Steel Re-Bar Connection 43

46 Exothermic Weld System Cable to Steel Surface and Cable to Steel Pipe Connection STRAIGHT INCLINED (CH-TF) SINGLE HORIZONTAL (CH-TH) SINGLE DESCENDING (CH-VI) DOUBLE VERTICAL (CH-TVD/CH-TVI) VERTICAL PARALLEL (CH-PVV) CROSS VERTICAL (CR-PV) ONE SIDE SINGLE (CH-PVH) SINGLE ASCENDING (CH-VS) SINGLE PIPE HORIZONTAL (CT-TH) 44

47 Exothermic Weld System Cable to Steel Surface and Cable to Steel Pipe Connection 45

48 Exothermic Weld System Cable to Busbar Connection STRAIGHT INCLINED (CH-TF) CROSS VERTICAL (CR-PV) SINGLE DESCENDING (CH-VI) ONE SIDE SINGLE (CH-PVH) SINGLE HORIZONTAL (CH-TH) 46

49 Exothermic Weld System Cable to Busbar Connection 47

50 Exothermic Weld System Busbar to Busb ar Connection STRAIGHT HEIGHT (PL-LV) TEE HORIZONTAL (PL-TH) ANGLE VERTICAL PL-ARI) STRAIGHT VERTICAL (PL-V) UPSIDE DOWN (PL-TS) TEE VERTICAL (PL-TV) CROSS HORIZONTAL (PL-X) STRAIGHT WIDTH (PL-LH) BRANCH HEIGHT (PL-DP) 48

51 Exothermic Weld System Busbar to Busb ar Connection 49

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