China Pin Type Insulator 56 Series High -Voltage Pin Type Manufacturer and Supplier

Pin Type Insulator 56 Series High -Voltage Pin Type

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56 Series High -Voltage Pin Type

Standard: ANSI C29.1, ANSI C29.6

Voltage:11-36kV

As the name suggests, the pin type insulator is mounted on a pin on the cross-arm on the pole. There is a groove on the upper end of the insulator. The conductor passes through this groove and is tied to the insulator with annealed wire of the same material as the conductor. Pin type insulators are used for transmission and distribution of electric power at voltages up to 33 kV. Beyond operating voltage of 33 kV, the pin type insulators become too bulky and hence uneconomical.
Glass Insulator

ANSI CLASS			56-1	56-2	56-3	56-4	56-5
Neck Type			J	K	K	/	/
Leakage Distance, mm			330	432	533	685	864
Dry Arcing Distance, mm			178	210	241	285.8	355.6
Min. Pin Length, mm			152	178	203	254	305
Main Dimensions, mm	D-Diameter		191	229	267	305	343
	H-Height		146	165	191	241	318
	N-Neck Diameter		89	102	102	114	140
	E-Pin Diameter		35	35	35	35	35
	S-Saddle Groove Radius		19	19	19	19	19
	Wire Grooves Radius		14	14	14	14	14
Cantilever Strength, kN			²⁵⁰⁰（11）	³⁰⁰⁰（13.2）	³⁰⁰⁰（13.2）	³⁰⁰⁰（13.2）	³⁰⁰⁰（13.2
Min Flashover Voltage	Power Frequency	Dry, kV	95	110	125	140	175
	Power Frequency	Wet, kV	60	70	80	95	125
	Critical Impulse	Pos., kV	150	175	200	225	270
	Critical Impulse	Neg., kV	190	225	265	310	340
Radio Influence Voltage Data	Test Voltage to Ground, kV		15	22	30	30	44
Radio Influence Voltage Data	Max.RIV at 1000 KHz, uV		100	100	200	200	200
Power Frequency Puncture Voltage, kV			130	145	165	185	225