Abstract: For automatic wiring of terminals of electrical apparatus, for example fluorescent lamp luminaires, a line or wire-laying tool is used which has a finger (31) on which a pressure element (37), movable between three positions I, II, III with respect to the finger, and the terminal, respectively, is retained. The pressure element presses a wire (20) in an insertion slit (12) of a slit blade insulation piercing connector SBIPC (11). The pressure element (37) has a cutter blade at an end surface, and further has two pressure sections (46, 47). One section (46) is used to effect a connection at the beginning of a wire run, or for through-wiring, and the other (47) is used to terminate the end of a wire line, and to cut the wire. The finger (21) is always outside of a contacting zone (3), thus permitting miniaturization of the terminal to a degree limited only by insulation requirements of air or creep paths between adjacent SBIPCs.

Abstract: A process for automatically wiring at least one terminal of an electrical apparatus with a wire-laying tool of the type that includes a wiring finger movable relative to the terminal. An initial terminal connection is established between the leading end of a wire and the terminal by pressing the wire into a SBIPC connector, which is located within the housing of the terminal, while positioning the wiring finger of the electrical apparatus outside the portions of the housing surrounding the SBIPC. A final wire connection is established between the trailing end of the wire and the terminal by pressing the cut wire into the SBIPC while positioning the wiring finger outside the portions of the housing of the terminal surrounding the SBIPC.

Abstract: For automatic wiring of terminals of electrical apparatus, for example fluorescent lamp luminaires, a line or wire-laying tool is used which has a finger (31) on which a pressure element (37), movable between three positions I, II, III with respect to the finger, and the terminal, respectively, is retained. The pressure element presses a wire (20) in an insertion slit (12) of a slit blade insulation piercing connector SBIPC (11). The pressure element (37) has a cutter blade at an end surface, and further has two pressure sections (46, 47). One section (46) is used to effect a connection at the beginning of a wire run, or for through-wiring, and the other (47) is used to terminate the end of a wire line, and to cut the wire. The finger (21) is always outside of a contacting zone (3), thus permitting miniaturization of the terminal to a degree limited only by insulation requirements of air or creep paths between adjacent SBIPCs.

Abstract: For automatic wiring of terminals of electrical apparatus, for example fluorescent lamp luminaires, a line or wire-laying tool is used which has a finger (31) on which a pressure element (37), movable between three positions I, II, III with respect to the finger, and the terminal, respectively, is retained. The pressure element presses a wire (20) in an insertion slit (12) of a slit blade insulation piercing connector SBIPC (11). The pressure element (37) has a cutter blade at an end surface, and further has two pressure sections (46, 47). One section (46) is used to effect a connection at the beginning of a wire run, or for through-wiring, and the other (47) is used to terminate the end of a wire line, and to cut the wire. The finger (21) is always outside of a contacting zone (3), thus permitting miniaturization of the terminal to a degree limited only by insulation requirements of air or creep paths between adjacent SBIPCs.

Abstract: An electronic, externally controlled ballast has a control oscillator which feeds a fluorescent lamp via an invertor bridge and a resonant circuit. To keep the voltage constant, there are derived from the lamp AC voltage charge packets whose size (and/or phase angle) characterizes the size of the lamp AC voltage. The charge packets are conducted onto a frequency-determining capacitor of the oscillator, which is designed as a sweep oscillator, voltage control thereby being achieved. The ballast provides for reliable operation of gas-discharge lamps. Its design is robust and yet simple, avoids undesired hunting and delivers a good degree of voltage stability.

Abstract: In a ballast for parallel operation of discharge lamps in potentially explosive areas, an inverter is provided which has a branch which is assigned to the two discharge lamps, and in this respect is used twice. Two lamp-specific branches can be switched off separately if a fault occurs at the assigned discharge lamp.