Approved And Unacceptable Building Ground Points - Huawei HES-319M Installation Manual

Approved and Unacceptable Building Ground Points

A list of approved and unacceptable ground points is repeated here because the importance of proper
grounding cannot be over–emphasized. Review the previous grounding topics for details.
Approved ground points are:

A building ground, also called an electrical service electrode.

Service equipment enclosures. Never drill into an electrical service panel.

A metal conduit or raceway of the electrical service.

A grounded interior metal water pipe.

An I–beam clamp on a grounded structural steel member.
Unacceptable ground points are:

Conduit on the load side of a building enclosure

A cut–off switch or a condensation pipe on a Heating Ventilation Air Conditioning, or HVAC, system

Steel roof trusses

Metal roofs, metal roof screws, metal screens, or metal windows

Vents or vent pipes

Electrical outlets or light fixtures

Gas pipes, gutters, exterior water faucets, unlicensed ground rods
HES-319M Installation 19