Grid framework accessories

A grid framework comprising:

• a conductive support grid member including an I-shaped bulb having a top portion, a bottom portion, and a central portion which is narrower than the top portion and the bottom portion, wherein the conductivity of the conductive grid support member is uncontrolled;
• a first conductor disposed on a first side of the I-shaped bulb of the conductive support grid member, the conductivity of the first conductor being controllable;
• a second conductor disposed on a second side of the I-shaped bulb of the conductive support grid member opposite the first side, the conductivity of the second conductor being controllable, and
• a non-conductive insulative layer applied to the I-shaped bulb of the conductive support grid member which fully covers the top portion of the I-shaped bulb, the non-conductive insulative layer interposing the I-shaped bulb of the conductive grid support member and the first conductor and interposing the I-shaped bulb of the conductive grid support member and the second conductor.