JN15-12/31.5 Indoor High Voltage AC Earthing Switch for switchgear
Product Description
Specification:
JN15A-12/31.5 Indoor AC high voltage grounding switche use resin insulators, on which live parts, made of silver-plated electrolytic copper (99.9%), are placed.
The blades are directly connected to the drive shaft.
Contact elements are overdimensioned according to the requirements in order to guarantee, together with a high contact pressure between blades and contacts, a reduced ohmic resistance at the contact surface and a minimum metal wear-off during the life of the grounding switch, with the necessary robustness to withstand thermal and mechanical stresses under short-circuit conditions.
Ambient condition:
Ambient temperature scope:form 12°C to40°C;Heavy cold zone:25°C allowed;Altitude not more than 1000m;
Relative humidity:average everday not exceeding 95%;Monthly average not more than 80%.
Major technical index:
| Item | Unit | Data | ||
| Rated voltage | kv | 12kA | ||
| Rated short-time withstand current | kA | 31.5kv | ||
| Rated short-circurt durature | s | 4 | ||
| Rated short-circurt making current | kA | 80 | ||
| Rated peak withstand current | kA | 80 | ||
| Interpolar center distance | mm | 280,300,350 | ||
| Rated insulting level | PF withstand voltage (one min) | kv | 42 | |
| Lightning impulse withstand voltage | 75 | |||
| Mechanical endurance | times | 2000 | ||
JN15-12/31.5 Outline dimension:
Product Categories : High-voltage Switch Series > Earthing switch
