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			<title>Green Building Forum - What size conduit for 10 PV panels?</title>
			<lastBuildDate>Thu, 16 Apr 2026 18:36:05 +0100</lastBuildDate>
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		<title>What size conduit for 10 PV panels?</title>
		<link>https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=12083&amp;Focus=201843#Comment_201843</link>
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		<pubDate>Wed, 14 May 2014 15:47:30 +0100</pubDate>
		<author>PeterStarck</author>
		<description>
			<![CDATA[I am planning to fit two rows of five 250W PV panels, sometime in the future, and need to know what diameter conduit to fit for all the cabling from the roof. Any ideas?]]>
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		<title>What size conduit for 10 PV panels?</title>
		<link>https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=12083&amp;Focus=201846#Comment_201846</link>
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		<pubDate>Wed, 14 May 2014 17:02:45 +0100</pubDate>
		<author>tony</author>
		<description>
			<![CDATA[how long will the cables be?  40mm will do it possibly 25mm]]>
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		<title>What size conduit for 10 PV panels?</title>
		<link>https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=12083&amp;Focus=201848#Comment_201848</link>
		<guid isPermaLink="false">https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=12083&amp;Focus=201848#Comment_201848</guid>
		<pubDate>Wed, 14 May 2014 17:12:29 +0100</pubDate>
		<author>billt</author>
		<description>
			<![CDATA[Depends on configuration. Normal would be one string of 10 panels in series, in which case you'ld be using 2 x 4mm wires to the inverter, if it's reasonably close. That should go through standard 20mm conduit.]]>
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	<item>
		<title>What size conduit for 10 PV panels?</title>
		<link>https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=12083&amp;Focus=201849#Comment_201849</link>
		<guid isPermaLink="false">https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=12083&amp;Focus=201849#Comment_201849</guid>
		<pubDate>Wed, 14 May 2014 17:17:25 +0100</pubDate>
		<author>Gotanewlife</author>
		<description>
			<![CDATA[My experience is simple: don't fart around - make it bigger or bigger still.  The number of times I've offered either a silent prayer of thanksgiving or a a 4 letter word of pain when later in an unforeseeable situation I just need a route through....]]>
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	<item>
		<title>What size conduit for 10 PV panels?</title>
		<link>https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=12083&amp;Focus=201858#Comment_201858</link>
		<guid isPermaLink="false">https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=12083&amp;Focus=201858#Comment_201858</guid>
		<pubDate>Wed, 14 May 2014 19:43:12 +0100</pubDate>
		<author>Chris P Bacon</author>
		<description>
			<![CDATA[<blockquote ><cite >Posted By: Gotanewlife</cite>My experience is simple: don't fart around - make it bigger or bigger still.  The number of times I've offered either a silent prayer of thanksgiving or a a 4 letter word of pain when later in an unforeseeable situation I just need a route through....</blockquote><br />I followed this plan and put in a 50mm diameter conduit, which should hopefully make it a doddle to pull through cables in the future.]]>
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	<item>
		<title>What size conduit for 10 PV panels?</title>
		<link>https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=12083&amp;Focus=201868#Comment_201868</link>
		<guid isPermaLink="false">https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=12083&amp;Focus=201868#Comment_201868</guid>
		<pubDate>Wed, 14 May 2014 20:54:40 +0100</pubDate>
		<author>jamesingram</author>
		<description>
			<![CDATA[2 x 20 or 1 x 25mm will take 4 x 4mm cables easy ( 2 strings +/- )]]>
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	<item>
		<title>What size conduit for 10 PV panels?</title>
		<link>https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=12083&amp;Focus=201891#Comment_201891</link>
		<guid isPermaLink="false">https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=12083&amp;Focus=201891#Comment_201891</guid>
		<pubDate>Thu, 15 May 2014 08:32:42 +0100</pubDate>
		<author>PeterStarck</author>
		<description>
			<![CDATA[Thanks for all the answers. It's only 4m from the roof to where the inverter will be and more or less straight. So if I wire them in series I'll need two 4mm2 cables. I've got some 25mm conduit so I'll use that. Thanks again.]]>
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