ADTRAN TSU LT Manuel d'utilisateur télécharger pdf (Page 18)

Chapter 2 Inspection and Installation TSU LT 220V User Manual

INSTALLING THE TSU LT 220V

Grounding Instructions

Grounding instruction information from the Underwriters' Laboratory UL 60950 3rd Edition is provided

in this section. An equipment grounding conductor that is not smaller in size than the ungrounded

branch-circuit supply conductors is to be installed as part of the circuit that supplies the product or system.

Bare, covered, or insulated grounding conductors are acceptable. Individually covered or insulated

equipment grounding conductors shall have a continuous outer finish that is either green, or green with one

or more yellow stripes. The equipment grounding conductor is to be connected to ground at the service

equipment.

The attachment-plug receptacles in the vicinity of the product or system are all to be of a grounding type,

and the equipment grounding conductors serving these receptacles are to be connected to earth ground at

the service equipment. A supplementary equipment grounding conductor shall be installed between the

product or system and ground that is in addition to the equipment grounding conductor in the power supply

cord.

The supplementary equipment grounding conductor shall not be smaller in size than the ungrounded

branch-circuit supply conductors. The supplementary equipment grounding conductor shall be connected

to the product at the terminal provided, and shall be connected to ground in a manner that will retain the

ground connection when the product is unplugged from the receptacle. The connection to ground of the

supplementary equipment grounding conductor shall be in compliance with the rules for terminating

bonding jumpers at Part K or Article 250 of the National Electrical Code, ANSI/NFPA 70. Termination of

the supplementary equipment grounding conductor is permitted to be made to building steel, to a metal

electrical raceway system, or to any grounded item that is permanently and reliably connected to the

electrical service equipment ground.

Bare, covered, or insulated grounding conductors are acceptable. A covered or insulated grounding

conductor shall have a continuous outer finish that is either green, or green with one or more yellow

stripes.

The supplemental grounding conductor shall be connected to the equipment using a number 8 ring

terminal. The terminal should be fastened to the grounding lug provided on the rear panel of the

equipment. The ring terminal should be installed using the appropriate crimping tool (AMP P/N 59250

T-EAD Crimping Tool or equivalent).

Power to the TSU LT 220V must be from a grounded 220 VAC, 60 Hz power source.

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ADTRAN TSU LT Manuel d'utilisateur Page 18