Showing posts with label snaking wires. Show all posts
Showing posts with label snaking wires. Show all posts

Thursday, March 31, 2011

RUNNING WIRES TO THE HELM

Since I was kind of in a rush to finish the conversion to electric propulsion back in 2008 some things did not get installed as well as they should have at first. One of the things that was done in a temporary install was the electric propulsion speed control. Which at first was just secured with Ty Wraps as you can see here:

  Also the wires for the control ran across the cockpit deck into a hole on the side. Not the best way to operate for long. It worked  fine but, a more permanent solution had to be done. But, how should I run the wiring to the pedestal location where the electric motor control would be? The controls for the diesel engine were run through the pedestal and were wire linkages to the engine. I did not really like the idea of running the wires through this same route. It was tight and there were things like chains moving as one turned the helm to steer. If it chafed through the propulsion control cables who knows what could happen. It also would be very inaccessible. So I borrowed and idea from a fellow Nonsuch owner who ran a separate piece of conduit next to the helm for his pedestal mounted Loran unit.  I modified my design a little where as his was aft of the wheel I choose to install mine just forward of the wheel. Here is what I did. First I marked the location where I would be drilling the access hole in the deck next to the Edson pedestal making sure I would not be cutting into any stringers or supports below deck:


Next I drilled the hole and routered out and sealed the deck core with thickened West System Epoxy so no damage or delamintion would occur  if there should be any water leakage:

The fitting I used I was used a standard deck water fill fitting:


I removed the chain and fitted and secured it into the deck.
The photo above shows the fitting before the securing and chalking but, you get the idea. Then went to the local Ace hardware store and found a PVC fitting that would screw into the deck fitting: 

I then glued this fitting onto a piece of PVC pipe of the length I wanted using PVC cement:

I then screwed the pipe into the deck fitting using some Teflon tape on the threads before I did to help seal the threads. From then on it was simply running the wires down the  pipe from the helm. I used the wire pull rods I carry on board to help make this a little easier:


Hard to see in the photo below but, I cut a small slot down the side of the top of PVC pipe to allow for the wires (NOTE: I also created a drip loop so water would not run down the wires into the boat) and fitted the top with a removable PVC cap that allows for the easy installation of more wires or removal of existing ones as needed:

The nice feature of using this conduit is you can add and modify wiring to the helm as needed. Since I did the original install for the electric propulsion throttle control I added wires for a helm mounted GPS and 12 volt power outlet:
There are still a few more projects to follow.

Saturday, January 23, 2010

A DIFFERENT KIND OF FISHING

>BIANKA having an electric motor for auxiliary propulsion uses various forms of wiring run to various locations on board. In fact there are a few wires left over from the old diesel days that still need to be removed or reassigned to other duties. Then there are other projects requiring new wires. Like installing a new 12 volt receptacle in the galley area. Which I need to do so I can use the Braun mixer/chopper in the galley location instead of moving it and the 200 watt inverter that powers it to some other location on the boat to use it.

Running new wires behind walls or bulkheads is called fishing. Which is not the same as dropping a line over the side in the hopes of catching dinner. But, it can use a similar type of a fiberglass pole. It has been a learning experience for me as I used the technique on various projects. Here's what I found. At first I used a rod that was made from a wire coat hanger.
It was cheap but, also had some disadvantages. You could bend it easily but, it would also stay bent and that was a problem when trying to "fish" it around sharp bends. It would sometimes get hung up. Another disadvantage was it was conductive. You run the risk of having it contact some terminal or breakthrough a wires insulating jacket causing a short circuit, fire or shock hazard. Not an ideal situation or the ideal tool to use.
I then went looking for a better solution and found it at my local Home Depot store. This was a Greenlee 540-12 Fish Stix kit.


Which consists of several 1/4" fiberglass poles that interlock and allow one to run or pull wires in tight spaces up to 12 feet. They cost about $35 bucks. It was better than poking behind bulkheads with a conductive piece of metal coat hanger wire but, still not perfect. They bent a little but, did not stay bent like the a coat hanger wire method. But, they were a little too stiff for some of bends I had to run wires through. I started thinking that I might be able to also use them for an idea I had for another project so they still might still be useful on board.
One day while looking through an online catalog. I came across the Cen-Tech wire running kit. Since they cost less then the Greenlee 540-12 Fish Stix. I bought two sets for this other project. When I got them I realized that they were the perfect tool for fishing wires on board my boat much better than using the Greenlee sticks. For one thing they were thinner than the Greenlee poles and much more flexible. As you can see in the photo below:

Another advantage of the Cen-Tech poles is they come with a flexible screw on tip.

This makes it even easier to snake the pole into tight bends and spaces. You can also get a flexible tip for the much stiffer Greenlee Fish Stix but, at extra cost. Below shows a photo of Cen-Tech pole making a tight bend behind a bulkhead before pulling a wire through.

If you've got some wires to run I recommend using something like the Cen-Tech product. They also have other uses on board. I've used them to knock out Barnacles that found their way into some of the through hulls. So if you need to do some "fishing" inside the boat this is the tool to use.