Instruction Leaflet IL0102002E
Effective April 2018
Ring Main Unit Operation Instruction
Red-colored
dust cap
19EATON CORPORATION www.eaton.com
Figure 14.3 Removal of the cable compartment door
WARNING
PLEASE READ CAREFULLY THE INSTALLATION INSTRUCTION MANUAL
OF THE CABLE ACCESSORIES. ONLY PROFESSIONAL INSTALLATION
PERSONNEL ARE ALLOWED TO MAKE THE ACCESSORY STRICTLY
ACCORDING TO ITS REQUIREMENTS. FAILURE TO DO SO WILL SEVERELY
AFFECT THE NORMAL OPERATION OF THE EQUIPMENT.
WARNING
THE INSTALLATION OF THE CABLE BRACKETS AND THE FIXATION OF
THE CABLE SHALL NOT BRING ADDITIONAL FORCES TO THE
INSULATING CASING.
5.2. Cable connection
The cable terminal head adopts prefabricated silicone rubber, with
well-designed internal stress cone and shielding, properly solving
electric field concentration issues at the cutting place of the outer
screen and at the high voltage end. There is a semi-conductive
layer outside the product, allowing the live parts to be fully sealed,
fully insulated and completely screened, thus ensuring reliable
operations of the ring main unit. The load switch casing is 725 mm
away from the ground, while the combination unit cabinet casing
is 452 mm away from the ground, well protected by the cable
compartment door. Passing through the cable trench into the
cabinet, the cable are cut off after the length is measured. The
connections of relevant parts and the making of cable heads shall
be considered as far as the length is concerned.
WARNING
RED-COLORED PROTECTIVE DUST CAP IS FORBIDDEN TO BE PUT INTO
OPERATION, AND CAN NOT REPLACE THE INSULATION COVER FOR USE.
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