Modular test plug

1. A test plug assembly for use with a test switch assembly connected to one or more electrical circuits, each of said electrical circuits having quantifiable characteristics when said circuit is in operation, said test switch assembly comprising one or more test switches, each of said one or more test switches associated with a respective one of said one or more electrical circuits, the test plug assembly comprising:

one or more test plug modules positioned in a stacked arrangement, each of said one or more test plug modules adaptable for in-service measurement of said quantifiable characteristics of said associated one of said one or more electrical circuits when said circuit is in operation and said test plug assembly is mated with said test switch assembly, at least one of said one or more test plug modules having an outwardly extending, electrically conductive blade for receipt in that one of said one or more test switches associated with said in operation electrical circuit whose quantifiable characteristic is to be in-service measured by said at least one test plug module when said test plug assembly is mated with said test switch assembly, said blade being electrically connected within said one or more test plug modules to a first electrical connector adapted to receive an external electrical plug, each of said one or more test plug modules further including a first thru-hole;

an end plate positioned on each end of said one or more test plug modules;

a handle spaced from said one or more test plug modules, extending between said end plates and secured thereto;

a first rod extending between said end plates and secured thereto; and

wherein said first thru-hole of each of said one or more test plug modules is aligned when in the stacked arrangement, said first rod is received in said aligned first thru-holes.

2. The test plug assembly of claim 1 further comprising a second rod, wherein each of said one or more test plug modules further includes a second thru-hole, and said second-thru hole of each of said one or more test plug modules is aligned when in the stacked arrangement and said second rod is received in said aligned second thru-holes.

3. The test plug assembly of claim 1 wherein each said one or more test plug modules includes, on a first side, a plurality of detents and on a second side, opposed from said first side, includes a plurality of raised features arranged to be received in said detents of an adjacent one of said one or more test plug modules when in said stacked arrangement.

4. The test plug assembly of claim 1 wherein said at least one blade includes two curved adjacent metallic elements that form a generally V-shaped tip.

5. The test plug assembly of claim 1 wherein said at least one blade includes a first conductor element and a second conductor element, said first and second conductor elements being spaced and electrically insulated from each other by an insulative strip positioned therebetween.

6. The test plug assembly of claim 1 wherein said at least one blade is also electrically connected within one of said one or more test plug modules to a second electrical connector adapted to receive an external electrical plug.

7. The test plug assembly of claim 1 wherein each of said one or more test plug modules includes at least one cylindrical projection extending outwardly from said one or more test plug modules on the side opposed from said blade, said projection including a rounded flange.

8. The test plug assembly of claim 1 wherein each of said one or more test plug modules further includes at least one half-cylinder projection extending outwardly from said one or more test plug modules on the side opposed from said blade, each said half-cylinder projection including a rounded flange around a curved portion thereof, said half-cylinder projections being aligned with a half-cylinder projection on an adjacent one of said one or more test plug modules to form a cylindrical projection when in the stacked arrangement.

9. The test plug assembly of claim 1 wherein said electrical connector is a banana jack.

10. A test plug assembly for use with a test switch assembly connected to one or more electrical circuits, each of said electrical circuits having quantifiable characteristics when said circuit is in operation, said test switch assembly comprising one or more test switches, each of said one or more test switches associated with a respective one of said or more electrical circuits, the test plug assembly comprising:

one or more test plug modules positioned in a stacked arrangement, each of said one or more test plug modules adaptable for in-service measurement of said quantifiable characteristics of said associated one of said one or more electrical circuits when said circuit is in operation and said test plug assembly is mated with said test switch assembly, at least one of said one or more test plug modules having an outwardly extending, electrically conductive blade for receipt in that one of said one or more test switches associated with said in operation electrical circuit whose quantifiable characteristic is to be in-service measured by said at least one test plug module when said test plug assembly is mated with said test switch assembly, said blade being electrically connected within said one or more test plug modules to at least one electrical connector adapted to receive an external electrical plug;

an end plate positioned on each end of said one or more test plug modules;

a handle spaced from said one or more test plug modules, extending between said end plates and secured thereto; and

wherein each said one or more test plug modules includes, on a first side, a plurality of detents and on a second side, opposed from said first side, includes a plurality of raised features arranged to be received in said detents of an adjacent one of said one or test plug modules when in said stacked arrangement.

11. The test plug assembly according to claim 10 further comprising a first rod extending between said end plates and secured thereto, and each of said one or more test plug modules further includes a first thru-hole, wherein said first thru-hole of each of said one or more test plug modules is aligned when in the stacked arrangement, and said first rod is received in said aligned first thru-holes.

12. The test plug assembly of claim 11 further comprising a second rod, wherein each of said one or more test plug modules further includes a second thru-hole, and said second-thru hole of each of said one or more test plug modules is aligned when in the stacked arrangement and said second rod is received in said aligned second thru-holes.

13. The test plug assembly of claim 10 wherein said blades are a plurality of different types and a first type of blade includes two curved adjacent metallic elements that form a generally V-shaped tip.

14. The test plug assembly of claim 13 wherein a second type of blade includes a first conductor element and a second conductor element, said first and second conductor elements being spaced and electrically insulated from each other by an insulative strip positioned therebetween.

15. The test plug assembly of claim 10 wherein at least one of said one or more test plug modules blades is also electrically connected within one of said or more test plug modules to a second electrical connector adapted to receive an external electrical plug.

16. The test plug assembly of claim 10 wherein each of said one or more test plug modules includes at least one cylindrical projection extending outwardly from said test plug module on the side opposed from said blade, said projection including a rounded flange.

17. The test plug assembly of claim 10 wherein each of said one or more test plug modules further includes at least one half-cylinder projection extending outwardly from said test plug module on the side opposed from said blade, each said half-cylinder projection including a rounded flange around a curved portion thereof, said half-cylinder projections being aligned with a half-cylinder projection on an adjacent one of said one or more test plug modules to form a cylindrical projection when in the stacked arrangement.

18. The test plug assembly of claim 10 wherein said electrical connector is a banana jack.

19. A test plug assembly for use with a test switch assembly connected to one or more electrical circuits, each of said electrical circuits having quantifiable characteristics when said circuit is in operation, said test switch assembly comprising one or more switches, each of said one or more switches associated with a respective one of said one or more electrical circuits, the test plug assembly comprising:

two plates spaced apart from each other;

a handle extending between said two plates and removably attached thereto; and

a first rod spaced apart from said handle and extending between said two plates and removably attached thereto;

said test plug assembly adaptable for receiving one or more test plug modules positioned in a stacked arrangement in said test plug assembly between said two plates when said one or more test plug modules are received in said test plug assembly, each of said one or more test plug modules capable of in-service measurement of said quantifiable characteristics of said associated one of said one or more electrical circuits when said circuit is in operation and said test plug assembly with said received one or more test plug modules is mated with said test switch assembly, at least one of said one or more test plug modules having an outwardly extending, electrically conductive blade for receipt in that one of said one or more test switches associated with said in operation electrical circuit whose quantifiable characteristic is to be in-service measured by said at least one test plug module when said test plug assembly is mated with said test switch assembly, said blade being electrically connected within said at least one test plug module to a first electrical connector adapted to receive an external electrical plug, each of said one or more test plug modules further including a first thru-hole;

wherein said one or more of said test plug modules are received in said plug assembly by first removably detaching both said handle and said first rod from said two plates and then aligning said one or more test plug modules in said test plug assembly so that said first thru-hole of each of said one or more test plug modules is aligned when in the stacked arrangement so that first rod can be received in all of said aligned first thru-holes and be removably reattached to said two plates.