Crossarm Insulator

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FS-10/2.5
FS-10/5.0
FS-35/5.0
FS-35/5.0

Description
SEVENSTARS provides crossarm insulator ranges from 10kV to 110kV. It comes with merits like outstanding leakproofness and terrific resistance to acid, alkalinity, aging and high temperature as well. Therefore, the crossarm insulator is absolutely insulated and free from moist.

This crossarm composite insulator makes use of highly extensible, acid-proof core rod conforming to ERC (Electrical Rules Check) requirements, and its ends adopt reliable triple labyrinth sealing for good and all.

It should be noted that this crossarm insulator must be handled with care to avoid friction or collision with hard articles. Treading on the porcelain bushing of this crossarm insulator is prohibited.

Service Environment
Our composite cross arm insulator can function well under following conditions:
1. Ambient temperature: -45℃ to 55℃
2. Altitude: ≤1000m
3. Rated frequency: 48Hz-62Hz
4. Power frequency voltage of arrester: Less than continuous running voltage of arrester
5. Wind pressure: ≤700Pa (equivalent to wind speed of 34m/s)
6. Air pollution level: Less than IV level

Technical Parameters of the Crossarm Insulator

Model		FS-10/2.5	FS-10/5.0	FS-35/5.0	FS-35/5.0	FS-110/5.0
Rated voltage (kV)		10	10	35	35	110
Rated bending break load (kN )		2.5	5.0	5.0	5.0	5.0
Distance between centers of groove and mounting hole (L1.mm)		390	400	620	620	1250
Insulating dimension	Hole diameter (d1.mm)	18	18	22	22	24
Insulating dimension	Height (h.mm)	≤14	≤68	≤68	≤68	≤68
Fixed hole diameter (d2, mm)		6.5	11	11	11	11
Minimal electric arc distance (H.mm )		315	320	520	520	1100
Minimal nominal creepage distance(L.mm )		420	480	1150	1150	2560
Lightning full wave impulse withstandvoltage (kV) (peak)		≥165	≥165	≥265	≥265	≥590
1-minute power frequency withstand voltage (kV) (virtual value)		1	2	3	4	5