porcelain ANSI C29.7 standard line post insulator 57-1
Description:
ANSI C29.7 standard porcelain line post insulator 57-1 character :
Product technical performance :
| | Technical Specification | Unit | Value |
| 1 | Total length | mm | 229 |
| 2 | Max. Shed Diameter | mm | 145 |
| 3 | Creepage Distance | mm | 356 |
| 4 | Cantilever Strength | KN | 12.5 |
| 5 | Power frequency Flashover Voltage | | |
| | dry | KV | 70 |
| | wet | KV | 50 |
| 6 | Critical Impulse flashover Voltage + | KV | 120 |
| 7 | Radio interference voltage test voltage | KV | 15 |
| Max. RIV at 1 MHz | μV | 100 |
HIVOLT line post insulators 57-1 are available for vertical
mounting in either tie top design.
the unit is vertical mounting on a crossarm .
HIVOLT line post insulator are one single piece porcelain . they
are inherently free from both radio and television interference
without any treatment. their trim, sturdy sheds enable them to
withstand attacks from stones , bullets and power arcover .
they are especially useful for service on industrial feeders where
maximum reliability is most valuable in providing optimum service
continuity.
on the tie top unit the wide ANSI standard wire groove is provided
with a head and neck designed to enable the use of either warplock
or standard wire ties.
we can provide short stud or long bolt for insulator assembly .
Applications:
The ANSI 57-1 porcelain line post insulators are used on
distrbution lines . These insulators are commonly installed
vertically on metal or wooden structures based to support the
conductor . tie top procelain can hold conductor firmly and
suitable for different size of conductors.
Competitive Advantage:
high strength aluminum porcelain C-130 is used for insulation body
.
the insulator have very light net weight yet high mechanical
strength .
it can save transportation cost , and easy for assembly in
distribution lines.
the insulator have excellent self-clean character , much easier
for maintenance.
we offer 3 years quality guarantee .
OEM product are available .
