>> if you have a concrete encased etec trode, pouring a footing and you have the opportunity to put the wire in the footing, you do not need the ground rod. >> so the code has a number of different ways you can provide grounding to a building. this is one. this is probably the most common method, except for new buildings where they actually bury the copper ground into the footing, into the concrete footing and attach it to the steel reinforcing part. this is one of the most common. but there are a lot of different ways that you can solve these problems. and the codes, not just the electrical codes but all the codes. give us different ways to deal with problem-solving. so this is a very common way. and then somehow we have to figure out how to connect this to the house so that severing ground in the house, so you don't get a shock when you touch stuff. >> we have an example of a small residential service, the combination meter sock yet. -- socket and disconnect. where you put 100 or 125-amp circuit breaker in here. the inch and the quarter pipe comes down on the top. typically this is mo