Tuesday, 28 June 2011

Cable pipes

The KAIRA array has a few places where the signal cables will need to go underground. Because of the thawing and freezing, the cables can't be dug in directly, but must be ducted. However, the ducting lines can't be too long either, as it would otherwise either require huge tunnel and thus be too expensive.

Instead there are a few areas where the cables will make short underground detours. These are protected with self-draining pipe.

The photo shows (apart from wet weather) a couple of these pipes, wiht the termination lengths (2×) and draw lines. The area where these will be dug in is also marked.

It is easier to level the entire site and then dig in the pipes, than to put them in to start with and then attempt to work around them.

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