Ophir OTG117 Induced Lightning System

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The Ophir OTG117 Induced Lightning System is a two part system designed to cover the latest edition of Mil-Std-461G, CS117 consisting of OTG117.1 Multiple Stroke Generator covering Waveform 1-2 and 4-5 and OTG117.2 Multiple Stroke/Burst Generator covering Waveform 3 and 4. Cables and Probes/cores included with system.

The OTG117.1 generator is capable of producing Current Waveform 1, Voltage Waveform 2 or Voltage Waveform 4, and Current Waveform 5A all in the Multiple Stroke format. Single event triggering is also available for engineering testing and level setting. It can produce these Waveforms at both the Internal and External Equipment Levels (see Table 1). The OTG117.2 generator is capable of producing Waveform 3 (1MHz & 10MHz) Multiple Stroke and Multiple Burst, as well as Waveform 6 Multiple Burst. Single event triggering is also available for engineering testing and level setting. It can produce these Waveforms at both the Internal and External Equipment Levels (see Table 2).

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Table 1

Multiple Stroke
Applicability	Test Description	Internal Equipment Levels**	External Equipment Levels**
All equipment installations	Waveform 2 (WF2)/ Waveform 1 (WF1)	First Stroke VL = 300 V (WF2) IT = 600 A (WF1) IT = 60 A* Subsequent Strokes VL = 150 V (WF2) IT = 150 A (WF1) IT = 30 A*	First Stroke VL = 750 V (WF2) IT = 1500 A (WF1) IT = 150 A* Subsequent Strokes VL = 375 V (WF2) IT = 375 A (WF1) IT = 75 A*
Equipment installations routed in areas with composite skin/structure.	Waveform 4 (WF4)/ Waveform 5A (WF5A)	First Stroke VL = 300 V (WF4) IT = 1000 A (WF5A) IT = 300 A* Subsequent Strokes VL = 75 V (WF4) IT = 200 A (WF5A) IT = 150 A*	First Stroke VL = 750 V (WF4) IT = 2000 A (WF5A) IT = 750 A* Subsequent Strokes VL = 187.5 V (WF4) IT = 400 A (WF5A) IT = 375 A*

Table 2

Multiple Stroke
Applicability	Test Description	Internal Equipment Levels	External Equipment Levels
All equipment installations	Waveform 3 (WF3) – 1 MHz and 10 MHz	First Stroke VT = 600 V (WF3) IL = 120 A (WF3) IL = 24 A* Subsequent Strokes VT = 300 V (WF3) IL = 60 A (WF3) IL = 12 A*	First Stroke VT = 1500 V (WF3) IL = 300 A (WF3) IL = 60 A* Subsequent Strokes VT = 750 V (WF3) IL = 150 A (WF3) IL = 30 A*
Multiple Burst
Applicability	Test Description	Internal Equipment Levels	External Equipment Levels
All equipment installations	Waveform 3 (WF3) – 1 MHz and 10 MHz	VT = 360 V (WF3) IL = 6 A (WF3)	VT = 900 V (WF3) IL = 15 A (WF3)
Equipment installations that utilize short, low impedance cable bundle installations.	Waveform 6 (WF6)	VL = 600 V (WF6) IT = 30 A (WF6)	VL = 1500 V (WF6) IT = 75 A (WF6)

Ophir OTG117 Induced Lightning System

Table 1

Table 2

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