Insulators are made of special porcelain mass C120 according to IEC-672-3 (JUS N.A8.302)
	Insulators are made of special porcelain mass C120 according to IEC-672-3 (JUS N.A8.302)
	Insulators are made of special porcelain mass C120 according to IEC-672-3 (JUS N.A8.302)