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Professional China Gapless Lightning Arrester - 24kv Indoor Combined Electric Grounding Switch Earthing Switch for Switchgear – Aiso Detail:
Earthing Switch for Switchgear Product Description
Jn15 indoor high-voltage alternating-current earthing switch is used as a support product for indoor three-phase alternating- current power systems of 3 ~ 40.5kV and 50(60)Hz and high- voltage switch cabinets or as an earthing switch for the overhauls of high-voltage electrical equipment. It is characterized by simple and compact structure, light weight, flexible operation, easy installation and good thermal stability and dynamic stability.
JN15-12/24/40.5KV indoor high-voltage alternating-current earthing switch is produced in line with the following standards and codes.
GB 1985 High-voltage alternating-current disconnectors and earthing switchesIEC 62271-102 High-voltage alternating-current disconnectors and earthing switches
Grounding Switch Earthing Switch Environmental Conditions Ambient temperature: – 40°C~+40°C (below 35°C within 24 hours) Relative humidity: ≤95% (daily average) or ≤90% (monthly average) Altitude: ≤ 1000m
Indoor High Voltage Earthing Switch Main Technical Parameters
| Item |
Unit |
Rsference valie |
| Rated voltage |
KV |
12/24/40.5 |
| Rated insulation level |
Lightning impulse withstand voltage |
KV |
75,145,185 |
| 1min power-frequency withstand voltage |
KV |
42,65,95 |
| Rated frequency |
Hz |
50 / 60 |
| Rated short-time withstand current |
kA |
31.5 / 40 |
| Rated withstand current(peak value) |
kA |
80 / 100 |
| Interphase center distance |
mm |
See the table |
Note:Please contact the factory to confirm the latest parameters
Outline and installation dimension

| Model and specification |
E |
L |
C |
| JN15-24/31.5-275 |
275 |
810 |
646 |
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No matter new customer or outdated client, We believe in extensive phrase and trusted relationship for Professional China Gapless Lightning Arrester - 24kv Indoor Combined Electric Grounding Switch Earthing Switch for Switchgear – Aiso, The product will supply to all over the world, such as: Muscat, Slovak Republic, Swaziland, We have been perfectly devoted to the design, R&D, manufacture, sale and service of hair products during 10 years of development. We have introduced and are making full use of internationally advanced technology and equipment, with advantages of skilled workers. "Dedicated to providing reliable customer service" is our aim. We are sincerely looking forward to establishing business relationships with friends from at home and abroad.