12
Atwell International Limited
An installation pack is also available from Atwell International but is not included
as standard. This pack includes:
• 10mtrs of 18 core CY/SY Cable
• 5mtrs of 8 core screen cable
• 5mtrs of 3 core Tri-Rated 1.5mm² cable
• 15mtrs of 20mm plastic flexible conduit
• 4x 20mm Conduit Glands
• 10 x 20mm conduit clips
• 1 x MCB
• 2 x Slave Relays
• 4 x M8 Bolts
Optional Installation Pack
To assess the integration of the “detection” means (the VG Governor) with
prevention means (either the VG safety gears or the VG rope brake) a full-scale
test rig has been designed and manufactured. This is illustrated in figure one.
The rig simulates 630 kg lift with an empty lift car weighing 540 kg and a
counterweight weighing 850 kg. A pair of VG-4 safety gears is mounted on top of
the counterweight and an inverted VG rope brake mounted to brake the lift car in
the up direction. The overall travel has been restricted to 900 mm to comply with
the requirements of EN81.
N.B. While the test rig is based on a small capacity lift, the dynamic
profile is representative of all “one to one” roped traction lifts. On
bigger lifts, with greater OBL’s and well masses, the general dynamic
profile will be similar to that produced by the test rig. Larger lifts would,
of course, be fitted with appropriately rated VG rope brakes and VG
safety gears.
The rig is controlled by a single VG governor and tension weight. The rig can be
set to trigger either:-
a) The governor plus VG safety gear or
b) The governor plus VG rope brake.
VG Test Facility
Please check that the following parts have been supplied and received in good
order prior to attempting to install the system.
• Governor (VG OSG).
• Control Box (VGOSG-CB01A).
• Control Box fixings (4 x wall plugs and 4 x screws).
• Spare fuses. (3 types 1 of each)
• Manual & Documentation pack.
• 4 keys.
Components Supplied
