Safegate Group safedock, User Manual

Page: 51 / 348

SAFEDOCK®

Safegate Group
Manual Date: 6 February 2015
Chapter: 2 INSTALLATION Version: 2.7
Page 19 of 26
Note: GOS/SAM is an optional system that may not exist at your airport.
4.2 EARTHING THE SAFEDOCK HOUSING
It is supposed that the support fixture, used for mounting the Safedock unit, is
connected to construction ground/earth for the current drain from lighting induced
voltage surges. Alternatively, a copper cable of minimum 25 mm
2
connected to earth,
must be available.
The Safedock unit shall be connected to earth (the earth connection point is delivered
by a third party), using an “earth bonding strap” with a conductor area of
25 mm
2
, which shall be connected to the ground point on the rear of the Safedock
housing.
4.3 SAFEDOCK CONNECTION TO MAINS
The mains supply should be routed from its conduit entry point via the routing channel
to the pole circuit breaker (mains disconnect device). Route it away from other
conductors and components. A cable, 3 x 1.5 mm
2
, shall be used (or dimensions acc
to local standard). It shall be connected to the Safedock unit or see Chapter 5
DRAWINGS. The protect earth (PE) wire shall be connected to chassis directly, as it
enters the cabinet, to the yellow/green terminal. The cable inside the cabinet shall be
as short as possible.
The PE/cable gland hole is located at the rear/lower area,
in the Safedock unit, as in the figure.
Note : If the PE hole is not used, it is important to seal it
using the rubber plug/bolt supplied in the Operator Panel
package.
FIGURE 2.19 PE EXAMPLE
4.3.1 Main Switch Specification
A main switch shall be installed near the Safedock unit and shall be easily accessed
by service personnel. The switch should have following specifications:

Minimum Voltage Rating: 240 VAC

Minimum Amperage Rating: 10 A

Disconnects all phases and neutral simultaneously

Marked/labelled as the main switch for the Safedock system
4.4 CONNECTION OF COMMUNICATION LINES
4.4.1 General
The following signals, associated with the Operator Panel, are to be connected to the
Safedock main unit:

24 VDC power.

Operator Panel communication lines.

Emergency Stop line.

Dead-man-switch line (option).

Maintenance COM line.