Black Box RF207, RM476 Protective Grounding, Parts Not Bonded to Protective Earthing Terminal

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Chapter 3: Installation

3.4 Protective Grounding

Protective grounding studs are provided along with grounding jumper wires that electrically bond the enclosure doors to the enclosure chassis.

WARNING: To avoid injury to persons or loss of life, ground each enclosure individually to the dedicated branch circuit ground.

3.4.1 Connecting Main Protective Grounding Stud to the Dedicated Branch Circuit Ground

Connect the dedicated branch circuit ground connector to the main protective grounding stud located inside at the bottom rear of the enclosure chassis uisng a listed ring or closed-loop terminal.

3.4.2 Connecting Main Protective Grounding Stud to the Protective Bonding Conductors

Connect the rear doors to the main protective grounding studs located inside at the bottom and top rear of the enclosure chassis using a listed ring or closed-loop terminal. Connect the front door to the grounding stud located inside at the bottom front of the enclosure chassis using a listed ring or closed-loop terminal.

3.4.3 Parts Not Bonded to Protective Earthing Terminal

The following parts are not effectively bonded to the protective earthing terminal: rails, front to back rail horizontals, and the key- board assembly. If these parts need to be bonded to the protective earthing terminal, do so in accordance with Article 250 of the National Electric Code.

3.4.4 Shelves Bonding

Accessory shelves should be reliably secured and bonded to the ServShield enclosure rails by thread cutting screws, star washers, and nuts.

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Contents ServShield Trademarks Used in this Manual Trademarks Used in this ManualFCC and RFI Statements NOM Statement Table of Contents Preface/Safety Symbols Used in This Manual Safety Symbols Used in this ManualSafety Considerations PrefaceSpecifications Specifications 1.1 ServShieldShelf RM399 Fan RF207Front dimensions ServShield SizeSide dimensions Optional Accessories OverviewOverview Introduction What’s IncludedInstallation PowerLoading Equipment Protective Grounding Parts Not Bonded to Protective Earthing TerminalShelves Bonding Fan Assembly RF207 and Rear Door Fan Filter RM475 OperationOperation Leveling the Cabinet Removing the DoorsFront Door Filter RM476 Replacing a Rear Door Fan FilterReplacing the Front Door Filter Mounting Rails Mounting RailsService ServiceBlackbox.com Page Black Box Tech Support FREE! Live /7