Wire the PVs
When wiring the PVs, remember that they will generate electricity whenever the sun is shining, even in overcast conditions. So pay attention, and make sure you’re qualified to get the job done right and safely.
Some people even opt to cover the modules with an opaque material when wiring the array. Almost all modern PV modules come with prewired, multicontact (MC) connectors. These connectors simply plug together, allowing fast installation and a low-resistance, weather-tight connection. MC connectors should be firmly pushed together and given about a quarter turn to make sure the seal is tight. Your system design will determine how many modules will be wired in series, and how many series strings your array will have. (See my article on wiring configurations for a PV array in HP87.)
Once the series strings are wired, the next step is to fully secure the wiring. All MC connectors should be either taped with high-quality electrical tape or sealed with heat-shrink tubing. While the connectors themselves are watertight, these methods will further weatherproof them, and provide some strain relief to keep them from being inadvertently disconnected. Finally, no PV wiring should be left hanging, since this looks sloppy and just invites trouble. Use UV-resistant (black) zip ties to secure the module wiring to the module frames or mount structure. Clips that attach to the module frame and hold the wires are available as well.
If your interested in this or other aspects of home solar energy or residential wind power or would like to read up on some of the latest information on sustainable living or Green construction. Also here, you’ll find the DIY kits to build your own solar panels to use on the pole your about to install, just follow the highlighted link to a world of discovery.
Check it and we’ll see you tomorrow.
Tomorrow Install the Home-Run Wiring ! Come back you here!