J type tension insulatorDetailed product description：

J-type tension insulators are used for transmission and distribution lines, communication lines, broadcasting line terminals, corners, or large-span poles to balance the tensile stress on the poles. When in use, wires and cables are threaded through holes and slots, and the wires are tensioned for insulation and connection purposes.

Model: J-Tightening insulator
The number after the dash represents the mechanical failure load (ton)
GB/National Standard

Main dimensions and performance parameters of J-type tension insulators:

drawing number			one	two	three
National standard grade			J-4.5	J-9	J-7
Main dimensions	H		ninety	one hundred and seventy-two	one hundred and forty-six
	h		forty-two	seventy-two	seventy-three
	D		sixty-four	ninety-eight	seventy-three
	B		fifty-eight	-	-
	b		forty-five	sixty	forty-four
	d		fourteen	twenty-five	twenty-two
	R		ten	fourteen	thirteen
Mechanical failure load (KN)			forty-four	eighty-nine	seventy-one
Power frequency wet withstand voltage (KV)			-	-	fifteen
Network voltage	power frequency	Dry (KV)	twenty	thirty	-
		Wet (KV)	ten	twenty	-
Weight t (KG)			one point one	two	one point one

ANSI/American Standard

Main dimensions and performance parameters of tightened insulators:

Factory code			0513	0514	0515	0516
Icon			one	one	one	two
American Standard Class BS			54-1	54-2	54-3	54-4
Main dimensions mm	H		eighty-eight	one hundred and eight	one hundred and forty	one hundred and seventy-one
	h		forty-four	fifty-seven	seventy-nine	sixty-nine
	h1		sixty-four	seventy-six	one hundred and three	one hundred and fourteen
	D		sixty-four	seventy-three	eighty-six	eighty-nine
	d		forty-four	fifty-four	sixty	sixty
	d1		sixteen	twenty-two	twenty-five	twenty-five
Mechanical failure load (KN)			forty-four	fifty-three	eighty-nine	eighty-nine
Creepage distance (mm)			forty-one	forty-seven	fifty-seven	seventy-six
flashover voltage	Power frequency	Dry (Kv)	twenty-five	thirty	thirty-five	forty
		Wet (Kv)	twelve	fifteen	eighteen	twenty-three
Weight (kg)			zero point four three	zero point six three	one point two	two

J type tension insulator（No image available）