你想把你的家庭网络连接到外屋，比如**或车间，有线是唯一的方法。如何将以太网电缆安全地连接到二级建筑？

今天的问答环节是由SuperUser提供的，SuperUser是Stack Exchange的一个分支，是一个由社区驱动的问答网站分组。

问题

超级用户读者Yosef准备用以太网连接他的**，但他有几个问题：

I’m trying to extend my network to an unconnected garage that’s about 20 yards away from my house. What’s the best way to do this?

1. Is there special outdoor-rated cat5e/cat6 I should use? 2. If put it in a dug trench, do I need to put it in conduit? 3. If I run parallel to electric, how much separation do I need, and do I go UTP or STP? 4. If I do an overhead run, how should I properly ground it against lightning?

避免以后发生小事故（或大悲剧）的最好方法是在开始一个项目之前问一些好问题；他在这里有一个好的开始。

答案

超级用户贡献者Jweede提供了一些建议：

Yes. This article answers most of your questi***.

Is there special outdoor-rated cat5e/cat6 I should use?

"Preferably, special exterior or direct burial CAT5 cables should be used for outdoor runs instead of ordinary CAT5."

If put it in a dug trench, do I need to put it in conduit?

"Exterior-grade Ethernet cables are waterproof and thus do not require conduit."

If I run parallel to electric, how much separation do I need, and do I go UTP or STP?

"5-20cm (6-8 inches) and at least that far away from power lines or other sources of electrical interference."

If I do an overhead run, how should I properly ground it against lightning?

"Accordingly, CAT5 surge protectors should be installed as part of outdoor Ethernet networks to guard against lightning strikes."

另一位撰稿人Keck建议结合两种安装技术：

In my experience, it doesn’t hurt to combine both trenched conduit and direct burial wire. Expansion is great. Direct burial alone tends to get eaten rather easily if you have any sort of rat/mole/gopher digging around. Straight conduit can leak if done improperly, but the combo is a reliable combo. If you’re concerned about dealing with conduit, flexible “liquid-tight” grey pvc tubing is “very” easy to route, but does cost a bit more than standard pvc.

当涉及到地下/远程电缆安装时，前期的额外资金绝对是值得的（并且避免了拉新电缆、修理马虎的安装或在以后把整件事都做一遍的麻烦）。

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