Diagnosis of High Voltage Insulators Made of Ceramic Using Spectrophotometry

Table 3

Dominant wavelengths present in light emission of value .

Wavelength interval; (nm)	Dominant wavelengths and intervals for (nm)
λ = 200–299	243
λ = 300–399	312–317, 329, 333–339, 352–371, 373–382, 398-399
λ = 400–499	400, 404–406, 435, 460
λ > 500	724, 933