- Email:sales@orientinsulators.com
- Tel/Fax:86 317-3618888
- Whatsapp:86-13673997131
- Tel: 86-37186097078
- Whatsapp:86-13673997131
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- sales@orientinsulators.com
Orient Power is one of leading post insulator manufacturer in China for TR330-TR373 Porcelain station post insulator including TR330, TR371, TR372 and TR373
High strength units of TR330-TR373 Porcelain station post insulators
High strength station posts are usually required where mechanical loads from opening and closing switches are unusually heavy or where there is a threat of severe short circuit stresses on the insulator. Also these units permit longer, heavier bus runs with few insulators.
Compared to epoxy insulators, the advantages of porcelain station post insulators have
◆ Water that accumulates in the inserts and then freezes will damage epoxy insulators. Porcelain station post insulators can be used in low temperature areas.
◆ Lone term life
◆ Natural materials, no pollution
There is an important part of TR330-TR373 Porcelain station post insulator. When insulators are to be installed outdoors, inserts must be partially filled with no-oxide compound to prevent moisture accumulation in the inserts.
TR330-TR373 Porcelain station post insulator main technical parameters:
Type | TR330 | TR371 | TR-372 | TR373 |
Leakage distance, mm | 6705.6 | 6705.6 | 6705.6 | 6705.6 |
Cantilever strength, KN | 4 | 5.2 | 7.78 | 7.78 |
Tension strength, KN | 111.2 | 89 | 178 | 89 |
Torsion strength, N.m | 15760 | 7005 | 21014 | 7005 |
Compression strength, KN | 333.6 | 267 | 444.8 | 267 |
Low frequency test voltage, KV | 220 | 220 | 210 | 220 |
Critical impulse flashover positive voltage, KV | 1610 | 1610 | 1610 | 1610 |
Low frequency wet withstand voltage, KV | 590 | 590 | 590 | 590 |
Impulse withstand voltage, KV | 1470 | 1470 | 1470 | 1470 |
Relative Articles:
TR202-TR214 post insulators
TR267-TR288 station post insulator
TR289-TR308 Station post insulators
TR324-TR369 Post type insulator
- E-mail: sales@orientinsulators.com
- Tel/Fax: +86 371 86097078
- Whatsapp: 86-13673997131