Grounding the Appliance
Grounding is one of the most important parts of equipment installation. Proper grounding practices ensure that the buildings and the installed equipment within them have low-impedance connections and low-voltage differentials between chassis. When you properly ground systems during installation, you reduce or prevent shock hazards, equipment damage due to transients, and data corruption.
| Environment | Electromagnetic Noise Severity Level | Grounding Recommendations |
|---|---|---|
| Commercial building is subjected to direct lightning strikes.
For example, some places in the United States, such as Florida, are subject to more lightning strikes than other areas. |
High | All lightning protection devices must be installed in strict accordance with manufacturer recommendations.
Conductors carrying lightning current should be spaced away from power and data lines in accordance with applicable recommendations and codes. Best grounding recommendations must be closely followed. |
| Commercial building is located in an area where lightning storms frequently occur but is not subject to direct lightning strikes. | High | Best grounding recommendations must be closely followed. |
| Commercial building contains a mix of information technology equipment and industrial equipment, such as welding. | Medium to High | Best grounding recommendations must be closely followed. |
| Existing commercial building is not subject to natural environmental noise or manmade industrial noise. This building contains a standard office environment. This installation has a history of malfunctions due to electromagnetic noise. | Medium | Determine source and cause of noise if possible, and mitigate as closely as possible at the noise source or reduce coupling from the noise source to the affected equipment.
Best grounding recommendations must be closely followed. |
| New commercial building is not subject to natural environmental noise or manmade industrial noise. This building contains a standard office environment. | Low | Electromagnetic noise problems are not anticipated, but installing a grounding system in a new building is often the least expensive route and the best way to plan for the future.
Best grounding recommendations should be followed as much as possible. |
| Existing commercial building is not subject to natural environmental noise or manmade industrial noise. This building contains a standard office environment. | Low | Electromagnetic noise problems are not anticipated, but installing a grounding system is always recommended.
Best grounding recommendations should be followed as much as possible. |
To ground the TIBCO Enterprise Message Service Appliance and prevent damage from electrostatic discharge:
Procedure
- Use a wire-stripping tool to remove approximately 0.75 inches (2 cm) of the insulation from the end of the grounding cable.
- Insert the stripped end of the grounding cable into the open end of the grounding lug.
- Use the crimping tool to secure the grounding cable in the grounding lug.
- Remove the adhesive label from the grounding pad on the chassis.
- Place the grounding lug against the grounding pad so that there is solid metal-to-metal contact, and insert the two M4 screws with washers through the holes in the grounding lug and into the grounding pad.
- Ensure that the lug and cable do not interfere with other equipment.
- Prepare the other end of the grounding cable and connect it to an appropriate grounding point in your site to ensure adequate earth ground.