An electrical circuit breaker includes a first contact piece with a first consumable contact; a second contact piece with a second consumable contact; a drive for moving the first contact piece along a switching movement axis; and a transmission for transmitting the movement of the first contact piece to a movement of the second contact piece. In accordance with the present disclosure, the composition also contains one or more reactive viscosity stabilizers. The inspection probe includes a plurality of excitation assemblies for transmitting a plurality of radiation emissions into the well structure. A plurality of adhesive structures is formed. The message identifier of the parent message is annotated to indicate the number of related child messages.