Peak Voltage Measurements Using Standard Sphere Gap Method

Table 1

Breakdown voltage data.

Distance; [cm]	Test conditions: 19°C; 760.56 mmHg; 8.13 g/m^3
	Experimental breakdown voltage; [kVmax]	Standard peak values at STC; [kVmax]	Theoretical values; [kVmax]	Standard peak values [2]; [kVmax]
1	31.02	31.19	31.16	31.10
1.5	46.53	45.64	45.73	45.50
2	59.22	59.38	59.67	59.20
2.5	71.06	73.12	73.01	72.90
3	83.24	86.06	85.77	85.80
3.5	94.97	98.70	97.98	98.40
4	106.10	111.33	109.67	111
4.5	119.62	123.37	120.86	123
5	131.97	134.40	131.58	134
5.5	140.79	145.44	141.84	145
6	148.89	155.47	151.67	155