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Disc Suspension Toughened Glass Insulator

It is mainly composed of an iron cap, tempered glass parts and steel feet, and is bonded together with cement adhesive.

Category:

Power Insulators

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0086-13932089368

WhatsApp:

0086-13930047416

Email:

andywen888@vip.sina.com

Email:

andywen8866@gmail.com

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Product Description

Product Introduction

Product specification

FOLLOWING THE STANDARD OF: IEC 60305

ITEM NAME	MECHANICAL FAILING LOAD(KN)	DISC DIA. 'D' (MM)	SPACING 'H' (MM)	CREEPAGE DISTANCE (MM)	STANDARD COUPLING	DRY	WET	LIGHTNING IMPULSE WITHSTAND VOLTAGE (KV)	POWER-FREQ. PUNCTURE WITHSTAND VOLTAGE (KV)	VISUAL CORONA VOLTAGE (KV) PIN / CAP	POWER FREQENCY ARCING TEST	NET WEIGHT PER UNIT (KG)
ITEM NAME	MECHANICAL FAILING LOAD(KN)	DISC DIA. 'D' (MM)	SPACING 'H' (MM)	CREEPAGE DISTANCE (MM)	STANDARD COUPLING	POWER FREQUENCY WITHSTAND VOLTAGE (KV)		LIGHTNING IMPULSE WITHSTAND VOLTAGE (KV)	POWER-FREQ. PUNCTURE WITHSTAND VOLTAGE (KV)	VISUAL CORONA VOLTAGE (KV) PIN / CAP	POWER FREQENCY ARCING TEST	NET WEIGHT PER UNIT (KG)
U40B	40	175	110	190	11	55	30	75	90	18 / 22	0.12S/20KA	1.75
U70BS	70	255	127	320	16 or 14	70	40	100	130	18 / 22	0.12S/20KA	3.70
U70BL	70	255	146	320	16 or 14	70	40	100	130	18 / 22	0.12S/20KA	3.75
U100BS	100	255	127	320	16	70	40	100	130	18 / 22	0.12S/20KA	4.10
U100BL	100	255	146	320	16	70	40	100	130	18 / 22	0.12S/20KA	4.20
U120BS	120	255	127	320	16	70	40	100	130	18 / 22	0.12S/20KA	4.10
U120BL	120	255	146	320	16	70	40	100	130	18 / 22	0.12S/20KA	4.20
U160BS	160	280	146	400	20	75	45	110	130	18 / 22	0.12S/20KA	6.30
U160BM	160	280	155	400	20	75	45	110	130	18 / 22	0.12S/20KA	6.40
U160BL	160	280	170	400	20	75	45	110	130	18 / 22	0.12S/20KA	6.50
U210B	210	280	170	400	20	75	45	110	130	18 / 22	0.12S/20KA	7.00
U240B	240	280	170	400	24	75	45	110	130	18 / 22	0.12S/20KA	7.50
U300B	300	330	195	490	24	85	50	130	130	18 / 22	0.12S/20KA	10.70
U420B	420	380	205	550	28	95	55	140	140	18 / 22	0.12S/20KA	14.80
U550B	550	380	240	620	32	95	55	149	140	18 / 22	0.12S/20KA	19.20

Performance characteristics

Easy to detect: It features zero-value self-destruction. Maintenance personnel can observe it on the ground or from a helicopter without having to climb poles to inspect each section one by one, reducing labor intensity. Moreover, the annual self-destruction rate during operation is 0.02% to 0.04%, which can save line maintenance costs.
Good arc resistance and vibration resistance: After being burned by lightning, the new surface remains a smooth glassy body and has a tempered internal stress protective layer, which can maintain sufficient insulation performance and mechanical strength. Even under vibration conditions such as wire galloping, the electromechanical performance will not decline.
It has good self-cleaning performance and is not prone to aging: it is not easy to accumulate dirt and is easy to clean. The insulator running on the southern line can be washed clean after rain. After long-term testing, the electromechanical performance after 35 years of operation is basically the same as that at the factory, and no aging phenomenon has occurred.
The main capacity is large and the voltage distribution is uniform: The dielectric constant of glass is 7-8, which gives the insulator a large main capacitance. The voltage distribution in series is uniform, which is conducive to reducing the voltage that the insulator bears near the conductor side and the ground side, and can reduce radio interference, lower corona loss and extend service life.