China Pin Type Insulator BS 11kV 22kV 33kV Pin Type Manufacturer and Supplier

Pin Type Insulator BS 11kV 22kV 33kV Pin Type

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BS 11kV 22kV 33kV Pin Type

Standard: BS 137, IEC60383

Voltage:11-36kV
Advantages of pin type insulators.
High mechanical properties.
Long-term service life.
Good electrical performance.
Good acid and corrosion resistance.
Natural material, environmental friendly.
Made by wet process porcelain or Dry process porcealin.
As the name suggests, the pin insulator is secured to the cross-arm on the pole. There is a groove on the top of the insulator to hold the conductor. The conductor passes through groove and is bound by the same material as the conductor.
Glass Insulator

BS CLASS			P-11-Y	P-15-Y	P-22-Y	P-33-Y	PW-15-Y	PW-22-Y
Creepage Distance, mm			254	298	432	630	432	673
Dry Arcing Distance, mm			102	133	200	360	197	267
Dimensions, mm	H – Height		130	137	165	244	185	255
	h- Depth of Thread		140	152	229	280	170	205
	D-Diameter		48	48	52.6	52.6	52.6	52.6
	d- Pin Diameter		18.3	18.3	27.8	27.8	27.8	27.8
	R1-Saddle Groove Radius		13	13	19	11	16	16
	R2-Wire Grooves Radius		9.5	11	14.3	13	16	16
Cantilever Strength, kN			11	11	11	13	11	11
Min Flashover Voltage	Power Frequency	Dry, kV	75	80	100	135	100	125
		Wet, kV	50	55	60	95	65	95
	Critical Impulse	Pos., kV	115	130	160	180	150	190
		Neg., kV	150	175	205	290	190	235
Withstand Voltage	One Minute Power Frequency	Dry, kV	65	70	90	110	90	110
		Wet, kV	40	50	55	75	60	90
Impulse Withstand Voltage, kV			90	110	150	170	140	180
Radio Influence Voltage Data	Test Voltage to Ground, kV		15	15	22	30	22	30
Radio Influence Voltage Data	Max.RIV at 1000 KHz, uV		8000	8000	12000	16000	12000	16000
Power Frequency Puncture Voltage, kV			150	150	145	210	150	199