Manually Operated Aerial Switch (IACM)

The IACM overhead switch is generally placed at the origin of major bypasses and makes it possible to isolate a section of network comprising several clusters of substations.

It complies with the NFC 64-140 type II standard

Operating principle

This device consists of a pantograph disconnector with a parallel air breaking device consisting of a zicral whip with wide clearance and high travel speed.

It is fitted with a tumbler-type stored-energy control giving a closing speed independent of the operator, guaranteeing closing power.

Construction

• Reinforced hot-dip galvanized frame (according to standard NF EN ISO 1461).
• Pantographs reinforced with spacers. 4 contacts per phase.
• Double closing spark arrester per phase.
• Non-adjustable load breaking device.
• RP3 tempered glass insulator.
• Shaft joints on bronze bearings.
• Shaft end stops on shock absorbers.
• Connections by terminal with a 12.5 mm diameter hole.
• Optional connection by TST.7 pin

Fixing fitting:

– Chairs fixed by 6 rods on the post.

– Framework and chairs with device (keyed) prohibiting incorrect positioning of the switch

– Galvanized steel linkage and transmissions

– Aluminum control panel.

For post 11 to 13 m: 1 return equipped

2 counter irons

2 faceplate counter-irons

For post 14 to 16 m: 1 return equipped

1 bare transmission

4 counter irons

2 faceplate counter-irons