The reasoning is that the metal casing on the water heater itself is thought to be sufficient to complete the continuous grounding path between the cold water and hot water pipes in the home.
Water meter grounding jumper wire.
Kit includes two brass ground clamps and copper conductor.
This sub feed cable will have 2 insulated power conductors 1 insulated neutral conductor and one ground wire.
This bonding is essential to maintain continuous ground path.
Installing a jumper wire on your home s main water pipe is easy and this.
For 200 amp service use a 4 gauge copper wire from the panel to the water pipe within 5 feet of where it enters the house and also between where it enters and the meter.
Grounding a sub panel.
1 in.
The southwire water heater grounding kit is designed for residential water heater use but can be used across any continuity break in residential plumbing.
If no jumper wire is installed a surge in electricity could cause damage to the water meter in some cases.
According to national electrical code the water piping must be bonded to the service equipment enclosure the grounded conductor at the service service neutral the grounding electrode conductor where large enough or directly to one or more of the grounding electrodes.
Still there are electricians and local building codes that vigorously defend the water heater bonding wire as a proper safety measure.
The jumper wire is actually a grounding wire a short section of large gauge wire that jumps or goes across the water meter and is securely attached to the water pipe at each side.
This is from a different table of sizes for grounding electrode conductors as opposed to ground wires from main panel to subpanel grounding conductors.
The blackburn water heater grounding kit comes with two brass ground clamps.
The bonding jumper is to be sized using table 250 66.
Residential water heater use.
If you use your home s main water pipe to ground the electrical system and many homes do you should attach a jumper wire around the water meter in order to provide a better path for the electricity ground path.
Sub panels are grounded through the cable that provides the sub feed circuit power.
Product can be used with residential water heaters.
In the video i talk about why water pipes need to be grounded.
10 sol str 2str.
Missing jumper wire at water meter is a common electrical defect and safety hazard noted in many home inspections for older homes.
Copper conductor 6 awg included.
Product also includes copper conductor.