500KV mutual inductor insulating paper is made from 100% high-purity sulfate insulating wood pulp and used for 500KV mutual inductor. 500KV mutual inductor insulating paper has two types (125um and 200um) according to thickness. Type of product is HZD. Quality

Properties

Index name		Unit	Specification
			HZD-125	HZD-200
Thickness		um	125¡À8.0	200¡À
Apparent density		g/cm3	0.75¡À
Porosity ¡Ý		um/(Pa.s)	0.68	0.68
Tensile strength¡Ý	MD	KN/m	7.85	10.5
	CD		3.92	5.17
Stretch¡Ý	MD	%	2.0	2.0
	CD		5.0	5.0
Tear strength ¡Ý		mN	981	1177
PH of water extract			6.0-8.0	6.0-8.0
Electrical conductivity ¡Ü		mS/m	2.5	2.5
Oil absorbency ¡Ý		%	40	40
Metal dot ¡Ü		num./100cm2	5	5
Dielectric dissipation factor (tg¦Ä 100¡æ)		%	0.23	0.23
Ash in content		%	0.3	0.3
Moisture		%	5.0-8.0	5.0-8.0