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Bonding the niu – CommScope Drop Cable User Manual

Page 35

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Bonding the NIU

Bonding the NIU is similar to bonding a standard coax installation (see Section 7 - Attaching to the ground

block). You should attach the NIU to the wall as closely as possible to the electrical meter. The bonding wire is

attached to a point within the NIU enclosure. Specific bonding points will vary with each make of NIU, so please

consult the manufacturer’s instructions. In all cases, the bonding wire should be as straight as possible and run

horizontally to the attachment point at the meter.

The preferred bonding method is to attach the NIU’s bond to the electrical meter ground wire with a wire not less

than 14 AWG in size. For recommendations regarding ground wires sizes, please refer to the National Electric

Code (NEC 820-40) or your local building code.

If bonding the NIU to the meter is not possible, you may bond to an

exterior metal cold water pipe running into the earth. As a last resort,

you may drive an 8’ ground rod into the earth and attach the bonding

wire to that, but you will need to attach all of the grounds of the resi-

dence to that rod.

Connectorize the Cable and Attach it to the NIU

Once the ground is attached, cut the coax so that you have a sufficient

amount to comfortably reach the connection within the NIU plus about

another 1’ (30 cm), similar to the pedestal attachment (see page 6.4).

Connectorize the cable (see page 9.9) and attach it to the NIU. If the

cable is entering from above, form a small drip loop below the con-

nection of the cable and the NIU. This loop will be useful if you have to

reconnectorize the cable in the future.

Attaching to the Ground Block per NEC 830 8.2

Connecting to the Buried Drop