Good Quality ANSI 53-4 spool porcelain insulator for low voltage china Factory direct prize

Short Description:

Spool insulators 53-4 are used with spool bolts (upset bolts) clevises, secondary racks and various brackets for deadending or supporting secondary voltage conductors.

The spool insulator is equipped with more than two umbrella buildings. The conductor is bound in the middle of the upper and lower umbrella buildings, and the center is perforated. It is fixedly connected to the cross arm or splint with threading nails.

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Product Technical Parameters

High quality lowest price glazed porcelain spool insulator for Low voltage
ANSI Class		53-1	53-2	53-3	53-4	53-5
Dimensions
Diameter	mm	57	79	76	105	102
Height	mm	54	76	81	76	105
Mechanical Values
Tensile Strength	kn	9.1	13.6	18.2	20.5	27.3
Electrical Values
Low frequency dry flashover voltage	kv	20	25	25	25	35
Low frequency wet flashover voltage,vertical	kv	8	12	12	12	18
Low frequency wet flashover voltage,horizontal	kv	10	15	15	15	26
Packing and Shipping Data
Net weight,approximate	kg	0.22	0.55	0.60	1.15	1.20