Low voltage lighting wiring techniques and sizing direct burial cables.

I have a 900 watt power pack, consisting of (3)three 300 watt hook-ups. My question is how many lineal feet can I run using 20 watt spot lights before I run out of juice? I have 4 acres and I really don''t feel like trenching for another GFCI if I can get by using 8/2 direct burial cable. Some of my lengths are probably going to be 300 lf or more. Please provide me with some formulas for how many lf I can go with 8/2 gauge and 10/2 gauge. According to your price list, it appeared that your 8 gauge and 10 gauge were about the same price, so I guess it would make sense to go for the 8 gauge.

That''s a big parcel of land for a low voltage lighting system. You are better off using multiple transformers to maintain voltage. By creating zones, you can be assured of maintaining an average voltage to each of your lights I would go with the 8/2 CABLE for sure!

To assist our customers, we created a POWER CABLE CALCULATOR that will help you figure out the size and capacity of the wire using different size loads.

We also have a DESIGNING LOW VOLTAGE LIGHTING SYSTEMS article that you will find useful.

Labels: Designing Low Voltage Lighting System, Direct Burial Cable, Power Cable Calculator

posted by xinger @ 10:51 AM