About the IS200JGNDG1A
General Electric describes the JGND model as a Shield Ground Board; this board supplies ground connections for the user's shield drain wires. The JGND board will be grounded to the sheet metal bracket through two screws at each end of the terminal model; the shield wires provided by the user will connect to the Euro-type terminal block. The Euro-type terminal block is equipped with twenty-four terminals. When using the IS200JGNDG1A in the Mark VI system and attached to the terminal board's mounting bracket, up to two JGND models can be used, which will provide up to forty-eight ground connections.This specific IS200JGNDG1A Shield Ground Board is actually not the originally-developed device of its specific GE Mark VI Turbine Control System Series functionality; that would in fact have to be deemed the IS200JGNDG1 parent Shield Ground Board notably not taking advantage of this specific IS200JGNDG1A PCB's sole A-rated functional product revision.
IS200JGNDG1A Mounting and Dimensions
As the IS200JGNDG1A board is mounted to a sheet metal bracket, it can be used to provide a path to the sheet metal ground at the board's mounting screw locations. The JGND board requires a nylon washer between the sheet metal and the board; the washer helps isolate the JGND board from the sheet metal to allow wiring of the board ground current into any of the desired ground locations. If the nylon washer is removed, it will authorize the conduction of any of the available ground currents into the sheet metal and will not require additional ground leads. All of the aforementioned material regarding the function and components required for proper operation of the IS200JGNDG1A came from the Mark VI GE Power Distribution, Modular Manual GEI-100613. These crucially-provided original IS200JGNDG1A Shield Ground Board instructional manual materials importantly make mention of a number of critical IS200JGNDG1A Shield Ground Board specifications, including its:
- Twenty four terminals provided on various Euro style terminal blocks
- A temperature range of negative thirty to sixty-five degrees celsius
- General product dimensions of 3.175 cm High by 12.7 cm Wide
- Sheet metal bracket mounting, as detailed above
