Res 1995-082 - Laserfiche WebLink

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, 1911x' "WILTEL Meridian 1: .... Panels should be located in the equipment room. :::: .0" No lighting, air conditioning, heating, generators or motors shall be serviced '... .... from this equipment room panel. :.:- In areas where isolated ground systems are permissible,this panel will provide .;.; sufficient ground connection points on the isolated ground plate or bar to handle the AC circuit grounds as well as the other ground reference conductors associated with the Meridian 1. Service Receptacles One dedicated outlet per pedestal (column) is a typical requirement for AC systems. For DC systems, or if reserve power is being used, the receptacles or conduit will serve the centralized rectifiers or UPS system directly, with power then routing to the columns. Unless otherwise specified, these circuits should be rated for 30 Amps. All circuits must be: ~:: Wired and fused independently of all receptacles. '", Tagged at the power panel to prevent unauthorized interruption of power. "', "', :::: Not controlled by a switch. .0', The NEMA receptacle types are as follows: < ~~ Isolated Ground Systems: IG-L6-30 System Grounding Requirements - Essential to trouble-free system operation and the safety of personnel is the employment of proper grounding. The Meridian 1 has several different grounds and signal returns that are generally referred to as grounds: logic return, battery return (for DC systems), AC "green wire" ground (in AC systems), and the personal hazard equipment ground. The Meridian 1 does not, by design, need an AC Isolated Ground (IG) system (though this may be required by local codes), but it does need a single point ground system. This means that each of the various grounds, from each of the columns, should terminate at a single connection point before attaching to the actual ground reference at the main AC panel or transformer. The single-point ground may be implemented either by the use of the Isolated Ground bus in the AC panel, or by a separate logic return equalizing bus for battery returns and logic returns where a non-isolated AC system is used. The following must also be observed to implement the single-point ground: :::: All ground conductors must be in accordance with local codes and terminate in a manner that is permanent, resulting in low impedance connections. :;:: All terminations should be accessible for inspection and maintenance. Customer: ~ -- Revised 9/24/94 Page 5 of 10 WilTel: