This product has unique pressure release device, its arc channel is smooth and pressure release performance is excellent high performance double rubber sealing structure is adopted in the product, the constant compression of gasket is less than 15% which ensures good sealing performance.

 

This products has large current discharge capacity. 2ms rectangular current discharge capacity of metal oxide varistor (diameter 115mm)2500A, 4/10μs high current impulse withstand capacity is 100KA which passes line discharge class5.
The porcelain housing is one big shed and one small shed united open sheds. The shed pitch and shed out are reasonable, the specific creepage distance of surge arrester for Ⅲ degree pollution area is 28mm/KV, it improves pollution withstand capacity of products.
This product has unique pressure release device, its arc channel is smooth and pressure release performance is excellent high performance double rubber sealing structure is adopted in the product, the constant compression of gasket is less than 15% which ensures good sealing performance.
 

Type	KV rms Rated voltage (KV rms)	KV rms Continuous Operating voltage (kV rms)	≥KV DC． Reference voltage（≥KV）	Residual voltage(≤KVP)			2 ms rectangular withstand (A)	4/10μs High current impulse withstand(KA)
				30/60μs switching impulse	8/20μs lightning impulse	1/10μs steep impulse
YH20-828/1620W	828	638	1114	1460	1620	1782	8000	4X100
YH20-648/1491	648	498	875	1234	1491	1639	2500	100
YH20-600/1380	600	462	810	1142	1380	1518	2500	100
YH20-342//980	342	274	512	720	980	1097	1500	100
YH20-300/727	300	228	425	618	727	814	1500	100
YH20-198/485	198	158	288	414	485	538	850	100
YH20-192/480	192	152	280	410	480	532	850	100
YH20-150/375	150	120	218	320	375	416	850	100
YH20-144/374	144	115	205	312	374	411	850	100
YH20-120/295	120	96	170	252	295	328	850	100
YH20-96/250	96	75	140	213	250	288	600	100
YH20-90/160	60	48	85	137	160	178	600	100