Installation of Siedarc electrodes/title> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> <script language="JavaScript" type="text/javascript"> //<![CDATA[  //]]> </script> <link href="../my.css" rel="stylesheet" type="text/css" /> <link href="../menu.css" rel="stylesheet" type="text/css" /> <link rel="shortcut icon" href="../favicon.ico" /> <script type="text/javascript">  </script> </head> <body bgcolor="#FFFFFF"> <div id="container">         <a name="top" id="top"></a> <div id="top"> <br/> <div align = "right"><a href="../SiteMap.htm"> Site map </a> <a href="mailto:EwenT@marinelightning.com"> Email </a><br/> </div> <h1>Marine Lightning Protection</h1> </div>   <div id="menuh-container"> <div id="menuh"> <ul> <li><a href="../index.html" class="top_parent">Home </a> <ul> <li><a href="../index.html#Introduction">Introduction</a></li> <li><a href="../index.html#News">News</a></li> <li><a href="../index.html#Principles">Principles</a></li> <li><a href="../index.html#Sideflashes">Sideflashes </a></li> <li><a href="../index.html#Products">Products</a></li> <li><a href="../index.html#Contact">Contact</a></li> </ul> </li> </ul> <ul> <li><a href="../profile.htm" class="top_parent">About us </a> <ul> <li><a href="../profile.htm#Specialty">Specialty</a></li> <li><a href="../profile.htm#System">The lightning system</a></li> <li><a href="../profile.htm#Founder">Founder</a></li> <li><a href="../profile.htm#Collaboration">Collaboration</a></li> <li><a href="../profile.htm#Contact">Contact</a></li> </ul> </li> </ul> <ul> <li><a href="../science.htm" class="top_parent">Information </a> <ul> <li><a href="../AirTerminals.htm" >Air terminals</a></li> <li><a href="../articles.htm">Articles</a></li> <li><a href="../science.htm#Types" >Boat types</a></li> <li><a href="../catamaran/index.html" >Catamarans</a></li> <li><a href="../Information/GroundingConcepts.htm" >Grounding concepts</a></li> <li><a href="../Information/GroundingGuide.htm" >Grounding guide </a></li> <li><a href="../science.htm#History" >History</a></li> <li><a href="../science.htm#Lightning" >Lightning</a></li> <li><a href="../science.htm#Problems" >Problems</a></li> <li><a href="../science.htm#Solutions" >Solutions</a></li> </ul> </li> </ul> <ul> <li><a href="../systems_build.html" class="top_parent">Systems</a> <ul> <li><a href="../systems_gallery.html">Gallery</a></li> <li><a href="../systems_build.html">Design & build</a></li> <li><a href="../systems_build.html#Ask">Ask us</a></li> </ul> </li> </ul> <ul> <li><a href="../products.htm" class="top_parent">Products</a> <ul> <li><a href="../rods.htm">Air terminals</a></li> <li><a href="../connections.htm">Connections</a></li> <li><a href="../GStrip.htm">Grounding Strips</a></li> <li><a href="../Siedarc.htm">Siedarc<sup>TM</sup> Electrodes </a></li> <li><a href="../prices.htm">Prices</a></li> <li><a href="../prices.htm#Contact">Contact</a></li> </ul> </li></ul> <ul> <li><a href="../consulting.htm" class="top_parent">Consulting</a> </li></ul> </div> </div>   <table width="750" border="0" cellspacing="5" cellpadding="5" > <tr> <td>  <h1>Installation instructions <br/><em>Siedarc<sup>TM</sup> electrodes with daisy-chain or perpendicular connection</em> </h1> <a name="PackageContents" id="PackageContents"></a> <h2>1 Package contents</h2> <h3><img width="144" height="134" src="SiedarcPerp&DC_image002.jpg" align="right" hspace="12" />1.1 Daisy-chain connection</h3> <ul> <li>one Siedarc<sup>TM</sup> electrode embedded in through hull</li> <li>one ¼-20 attachment screw</li> <li>one ¼" tinned brass washer</li> <li>one ¼" tinned bronze lock washer</li> <li>two 2AWG heavy duty lugs</li> </ul> <h3>1.2 Perpendicular connection</h3> <ul><li>one Siedarc<sup>TM</sup> electrode embedded in through hull with swaged length of 2AWG cable</li></ul> <p align="center"><img width="408" height="223" src="SiedarcPerp&DC_image004.jpg" /></p> <h2>2 Installation</h2> <h3>2.1 Overview</h3> In the final installation, the Siedarc<sup>TM</sup> electrode is installed through the hull with the connector and cable inside the hull and connected to the rest of the lightning protection system. At least six Siedarcs and at least one square foot of immersed grounding area are recommended for the typical application to provide an immersed area of 1<sup>2</sup>, as required by many standards, and multiple distributed grounding exit points. The though hull fitting is a standard ¾" size. <br /> The components for each Siedarc<sup>TM</sup> are connected in the following order: <ul><li>A hole is bored through the hull in the desired location.</li> <li>The electrode fitting is inserted into the hole.</li> <li>The fitting is secured by tightening the nut.</li> <li>The connector is screwed onto the electrode stud.</li> <li>The loose end of the cable is cut to length and attached to the rest of the lightning protection system.</li></ul> <h3><img width="326" height="288" src="SiedarcPerp&DC_image006.jpg" align="right" hspace="12" />2.2 Positioning the electrodes</h3> Determine the optimum location for the Siedarc<sup>TM</sup> on the outer surface of the hull, using the separate Guidelines to determine optimum placement. <br/> Generally, an electrode should be installed: <ul><li>above the waterline</li> <li>below the lowest extremity of any metallic though-hull that is above the waterline</li> <li>as close to the waterline as possible.</li> <li>In addition, for a daisy chain connection to an immersed strip such as the HStrip<sup>TM</sup>, the Siedarc<sup>TM</sup> electrode should be positioned as closely as practicable outboard and above the connection stud of the strip as shown to the right. </li></ul> <p>When functioning as intended, each electrode will become hot, especially at the tip, and experience an impulsive force. Careful hole preparation is crucial. In particular: <ul><li>Cored hulls should be hollowed out to a distance of at least 1" and filled with epoxy or other suitable material.</li> <li>Newly exposed fiberglass should be surface treated to be made impermeable to water.</li> <li>A backing plate is highly recommended.</li> <li>Extreme care must be taken to ensure no water seepage.</li> <li>If any moisture is found inside hull, the whole hull should be dried.</li> <li>Gel coat blisters should be treated by surface planing, and the hull thoroughly dried before electrodes are mounted.</li></ul> Any moisture that is left in the hull is likely to explode during a lightning strike, dislodging the electrode and leaving a hole in the hull. <h3>2.3 Hole preparation</h3> <ul> <li>Bore a 1.05" hole through the hull at the desired location. </li> <li>For a flush head through hull fitting, an additional depression is made to accommodate the head. See Appendix A for the dimensions of the flush head through hull fitting and description of mold plug.</li> </ul> <img width="225" height="192" src="SiedarcPerp&DC_image008.jpg" /><img width="299" height="192" src="SiedarcPerp&DC_image010.jpg" hspace="12" /> <h3>2.3 Securing the Siedarc<sup>TM</sup> to the hull </h3> Remove all nuts and attachments from the fitting and run a bead of marine sealant around the fitting to ensure that the installation is watertight. . Note that a watertight seal is <strong>crucial </strong>as any water intrusion into the hull could possibly explode during a lightning strike, resulting in rupture of the hull. Insert the fitting through the hull and screw on plastic nut from the inside. Tighten to no more than 20 ft.lb. <h3>2.4 Connecting the lightning conductor</h3> For electrodes that have separate connectors (daisy-chain) apply about 0.1-0.3 ml of Penetrox between all mating surfaces Assemble components on the screw in the correct order, position the connector so that the cable runs as straight as possible through the connecting point, and tighten by hand until the lock washer is flattened. Note that the electrode is made of soft copper and hence the thread is easily stripped. DO NOT OVERTIGHTEN. <h3>2.5 Connecting cable</h3> See the section below for cable connection directions for the loose end of the lightning cable.<a name="CableConnections" id="CableConnections"></a> <h2>3 Cables and lug connectors</h2> <h3>3.1 Measuring lightning conductors</h3> All lightning conductors use 2AWG tinned copper insulated marine cable. Marine battery cable is suitable. After all components to be connected are installed, layout the cables connecting components by the most direct route possible subject to the following guidelines: <ul><li>Always route the lightning cable outside of any on-board conducting fitting, wire. etc, that is to be protected.</li> <li>For any cable runs below the waterline, place the cable as far from the water as possible, where at least 6" spacing is desirable, particularly if a grounding terminal (Siedarc<sup>TM</sup> or HStrip<sup>TM</sup>) is more than 24" away. </li> <li>Avoid sharp bends in the lightning conductor, especially for corners facing the water. A radius of curvature of 8" or more is desirable. </li> <li>The optimum alignment is vertical above the waterline and perpendicular to the hull for any connection to a grounding terminal. </li> <li>Allowing ¾" for insertion into each lug and the length of the lugs, lay out and cut the cable to length.</li> </ul> <h3>3.2 Connecting the lug</h3> Feed a 3" length of wet-type heat shrink onto the cable. Strip ¾ " of insulation off the end of the cable, apply about 0.2ml of PenetroxE to the inside of the lug barrel, and insert the cable into the lug. Crimp twice between colored bands on lug using a hex die equivalent to 30 HEX H-H (1&2 gauge) in a heavy duty crimper. If a square crimp die is used, rotate 45 degrees after each crimp and crimp again. Wipe off excess PenetroxE, slip heat shrink tubing over curved part of lug and shrink on. Ensure heat shrink does not cover the flat face of the lug as this will prevent contact. <h2>4 Precautions</h2> After a lightning strike check all hull penetrations for the Siedarc<sup>TM</sup> to ensure that they are still watertight. While the Siedarc<sup>TM</sup> components have been designed according to accepted practices, factors such as the strength of the lightning and individual boat characteristics means that it is not possible to guarantee complete protection and there have been occasions when lightning conductors penetrating hulls have become loose and dislodged after a strike. Discoloration and pitting of the tip of the electrode and fairing around the electrode tip are normal after a lightning strike. Replace the electrode if the pitting penetrates more than ½" deep or ½" in diameter. <h2><a name="AppendixA" id="AppendixA"></a>Appendix A Dimensions of flush head Siedarc<sup>TM</sup> fitting</h2> <img width="327" height="327" src="SiedarcPerp&DC_image012.jpg" /><br /> The top flange is 0.32" thick. In order to install the through-hull so that its outer surface is flush with the hull, a recessed hole of the correct shape must be made. In a sandwich hull, since an epoxy plug should first be placed in the location of the electrode, a mold plug can be used, as shown below:<br /> <img width="403" height="288" src="SiedarcPerp&DC_image014.jpg" /><br /> Place this plug in the oversize hole before pouring the epoxy to get the correct hole shape. Then bore out the ¼" stem to 1.05" for the fitting shaft.</p> <p> </p> <p align="center"><strong>Legal Notice</strong><br /> This document contains proprietary information that is the intellectual property of Marine Lightning Protection Inc. Purchase from Marine Lightning Protection Inc of any product addressed in this document entitles the owner to the use of this proprietary information in the item purchased only. Any other intended use is an infringement of copyright and possible pending patents unless negotiated under a separate licensing agreement. The Siedarc electrode is specifically protected under US Patent #6,708,638, New Zealand patent#530,095, Australia patent #2002322249 and other pending patent applications. "Siedarc" is a trade mark of Marine Lightning Protection Inc.</p></td> </tr>  </table>  <h2><a name="Contact" id="Contact"></a>Contact</h2> <table width="600" border="0" align="center" cellpadding="5" cellspacing="5"> <tr> <td><div align="center"> <h3 >Marine Lightning Protection Inc.</h3> 3215 NW 17th Street <br /> Gainesville <br /> Florida 32605 </div> </td> <td><div align="left"><img src="../images/SydneySmall.jpg" /></div></td> </tr> <tr> <td colspan="2"><div align="center"> <strong>Phone:</strong> +1 352 373-3485 <strong>Email:</strong> <a href="mailto:info@marinelightning.com?subject=Information%20on%20lightning%20protection">info@marinelightning.com</a></u> <strong>URL: </strong><a href="../index.htm">www.marinelightning.com</a> </div> </td> </tr> </table> <div align="center">Please call or email if you have any questions. </div> <p> </p> <p> </p>  <table width="750" border="0" cellspacing="5" cellpadding="5" >  </table>  <div id="footer"> <table width="744" border="0" bordercolor="#FFFF00"> <tr> <td><strong>Menu item/Sub item</strong></td> <td width="200"><div align="right"><span class="small">© 2009 Marine Lightning Protection Inc</span></div></td> </tr> </table> <table width="746"> <tr> <td width="639"><table border="3" cellpadding="3" cellspacing="3" bgcolor="#0A0907"> <tr> <td><div align="center"><a href="#PackageContents"> Package contents </a></div></td> <td><div align="center"><a href="#Installation"> Installation </a></div></td> <td><div align="center"><a href="#CableConnections"> Cable connections </a></div></td> <td><div align="center"> Item </div></td> <td><div align="center"><a href="#Contact"> Contact </a></div></td> </tr> </table></td> <td width="80"><div align="center"><a href="#top" target="_self"><em><strong> Main menu </strong></em></a> </div></td> </tr> </table> </div>  </div>  <script type='text/javascript' src='https://count.carrierzone.com/app/count_server/count.js'></script> <script type='text/javascript'> </script>  </body> </html>