Good day!
Just want to ask if how can we identify a good ground rod.. most of the ground rods are corruded easily even if the suppliers said that it is a galvanize steel or a copper coated..
ground rod is important especially for safety..
many thanks
Re: How to identify an effective ground rod
Why don't you buy a real brass rod and use it as ground rod? Very pricey, I know, but will not corrode as quickly as galvanized or copper coated.
Re: How to identify an effective ground rod
Why don't you buy a real brass rod and use it as ground rod? Very pricey, I know, but will not corrode as quickly as galvanized or copper coated.
+1
or you can use a ground mesh (4' x 4', 2/0 bare wire,) instead.
Re: How to identify an effective ground rod
But well burined.
Re: How to identify an effective ground rod
The main reason for grounding in your house is to reduce the possibility of electrical shock and fire damage.
The two most common and permitted ways of grounding are by metal water pipe and by ground rods. In both instances, there must be at least 10 ft. of continously conductive material in the ground which is at least 2 ft. below finished grade.
For metal water pipes, the ground wire should be connected before the shut off valve/water meter. If in case you decide to put the wire after the meter, then you should attach a jumper wire on the ends of the pipes connected to the water meter. This is so that if in case somebody takes out the water meter for whatever reason, the grounding will not be disrupted.
For ground rods, the minimum size is 5/8" x 10 ft. for galvanized iron and 1/2" x 10 ft. if copper or copper clad. You must have at least two rods installed at least 10 ft. apart. The rod is usually driven straight into the ground. But in instances where it is not possible to do so (if there are rocks in the way), then you can bury the rod horizontally at least 2 ft. below finished grade.
Hope this helps.
Re: How to identify an effective ground rod
In my neighborhood, all new construction is required by Meralco to have a ground rod, but most ground rods are similar to that used by PLDT which is a lot shorter than 10 feet long. The ground rod is connected to a ground wire, or third wire, in the overhead lines. Hopefully, all the ground rods in all the houses will provide a good ground, especially since the distribution transformers are wired line to ground.
