Installation; Foundations; Main Cable Boxes; Cable Connection - ABB SafeLink Installation And Operating Instructions Manual

SafeLink
abb
SF Insulated Ring Main Unit
6
Installation and Operating Instructions

5 Installation

5.1 Foundations

The equipment shall be mounted on a concrete base designed to support the equipment
weight of 250kg, plus 80kg for the outdoor enclosure if used. ABB is able to supply a
suitable concrete base as an optional item. The base pad shall be mounted on a prepared
and compacted base. The concrete base should be smooth and must be installed such
that it is level. The maximum deviation in the height of the mounting pad must be less
than 3mm in any direction, with a maximum deviation from horizontal of 1° in any
direction.
13 diameter mounting holes

Figure 11: SafeLink foundation mounting plan.

The units are fastened to the concrete base by four M12 bolts. Ensure that there is free
air movement around the stand and prevent build up of material (vegetation, bark, etc.)
around the base of the stand.

5.2 Main Cable Boxes

The cable box compartment covers can be removed individually, while the side plates
can also be removed for installation and commissioning. This allows all of the bushings
to be exposed to give maximum cable termination room.
Options available are gland plates, cable support clamps, and their associated brackets.

5.3 Cable Connection

The maximum cable size that can be accommodated is 300mm² 3-core or 500mm² for
single-core cables. The bushings for each switch are arranged front to rear. The cable
should be prepared for jointing with red phase to the rear.
The cable-bushing stem has a 25mm wide pad and lugs should be fitted using M12 bolts
tightened to a maximum of 72Nm.
Unused switches should be appropriately terminated with a blank termination.
SLMIO ver 2.12 ABB Ltd, Switchgear Division, Auckland, New Zealand 14