Insulation structure for resistor grids

An apparatus, comprising:

• an insulation board having a top surface, wherein the insulation board defines one or more voids extending at least partially through an interior of the insulation board, and wherein the insulation board is made of an electrically insulating material, wherein the insulation board comprises one or more of a vinyl ester thermoset polymer or silicone;
• and
• one or more structural members disposed within at least one of the one or more voids for supporting the insulation board, wherein the structural members are made of a material that is different from the electrically insulating material, and
• the insulation board further defines plural pin holes, which are configured to engage pins of one or more resistive elements of a resistor grid, disposed along a length of the top surface of the insulation board and extending into the insulation board.

A method of constructing an insulation board for a resistor grid, the method comprising:

• providing a profiled block of a high temperature electrical insulator, wherein the profiled block comprises one or more longitudinal voids;
• inserting one or more longitudinal structural members in at least one of the one or more longitudinal voids, wherein the cross section of the longitudinal structural members conforms with the profile of the one or more longitudinal voids, wherein at least one of the one or more longitudinal structural members is metal;
• and
• providing one or more rows of transverse pin holes along the length of the profiled block, for engaging pins of one or more resistive elements of the resistor grid.

An apparatus, comprising:

• means for electrically insulating having a top surface, wherein the insulating means comprises vinyl ester thermoset polymer and defines one or more voids extending at least partially through an interior of the insulating means;
• and
• means for providing structural support for the insulating means that comprises metal and is disposed within at least one of the one or more voids of the insulating means, wherein the structural support means are made of a material that differs from the insulating means material, and
• the insulating means further defines plural pin holes, which are configured to engage pins of one or more resistive elements of a resistor grid, disposed along a length of the top surface of the insulating means and extending into the insulating means.

A method of constructing an insulation board for a resistor grid, the method comprising:

• providing a profiled block of a high temperature electrical insulator, wherein the profiled block comprises one or more longitudinal voids, wherein the providing further comprises molding a material comprising one or more of vinyl ester thermoset polymer or silicone;
• inserting one or more longitudinal structural members in at least one of the one or more longitudinal voids, wherein the cross section of the longitudinal structural members conforms with the profile of the one or more longitudinal voids;
• and
• providing one or more rows of transverse pin holes along the length of the profiled block, for engaging pins of one or more resistive elements of the resistor grid.

An apparatus, comprising:

• an insulation board having a top surface, wherein the insulation board defines one or more voids extending at least partially through an interior of the insulation board, and wherein the insulation board is made of an electrically insulating material;
• and
• one or more metal longitudinal structural members disposed within at least one of the one or more voids for supporting the insulation board, wherein the one or more metal longitudinal structural members are made of a material that is different from the electrically insulating material, and
• the insulation board further defines plural pin holes, which are configured to engage pins of one or more resistive elements of a resistor grid, disposed along a length of the top surface of the insulation board and extending into the insulation board.