Page 20 - AP2464B E-BOOK (KKR2 TOWER)

The lighting control for the KKR2 building are
manual switches override by the Occupancy
Sensors or Day-light Sensors.

Result:
Whenever it is exposed to high humidity - Maximizing full energy saving potential of
conditions switchgear will absorb moisture, and daylighting – if high Lux level is detected due to
hydrophobic insulation surfaces will be attacked by daylight, electrical lights for that zone is turned
voltage stresses which were designed to inhibit moisture off.
absorption. Water due to any reason can lead to short - Electric lights in areas of intermittent occupancy
circuits, insulation damage, and long term metallic (Meeting Rooms, Toilets) and Private Offices is
component corrosion, among other complications. automatically turned OFF when not occupied.
- Intelligent lighting control system projected to
To avoid issues from happening, switch gear save as much as 40% lighting energy.
room has to be closed at all time to prevent any air or
moisture to go through and lead to any disruption in the
room.

Common problems that occurred for switch board are typically loading problems and lagging problems in the
capacitor bank. Due to energy stored in the load and returned to the source, or due to a non-linear load that distorts
the wave shape of the current drawn from the source.

To avoid issues from happening, regular maintenance of the switch board and distribution board has to be
conduct at the building. Maintenance schedule is prepared to make sure every system is in good shape at all times.

Rodents frequently attack the outer layers of cables. This damage can be extensive, significantly reducing the
sheathing or insulation properties of the cable, another likely source of electrical fires. Furthermore, excessive
heating of the cable will cause degradation of the insulation and sheathing material and premature failure. The heat
may come from an external source or may be generated by the resistance to current flow in the conductor - a
particular problem if the cable is overloaded and/or underrated for the application.

To avoid problems from happening, all conduits has to be regularly checked by persons in charge. With
proper maintenance of the electric conduits, all electrical appliance will be in good shape and no problems will
occurred.

Problems that usually occurs in wiring closet are first, corrosion and moisture. Airborne chemicals, cleaning
applications or salt spray can result in corrosion of metal contact parts in terminal blocks. Consequently, this can
affect the integrity of the connection. Other than that, the second problem that usually occurred in a wiring closet is
inconsistent labelling practices can obscure needed information and/or complicate diagnosis and troubleshooting.

Solutions:
- To avoid corrosion or moisture, Corrosion can be battled by purchasing a fully enclosed block to protect metal
parts. Choosing contact material made of zinc-plated steel will also reduce the chance for corrosion. If metal is
exposed, engineers should choose a block with fully extruded metal with no seams. Seams foster corrosion.
- For the inconsistent labelling, the management of KKR2 has labelled terminal blocks above the termination point,
and labelled wires based on destination. They are practicing a new software solutions for keeping complex wiring
jobs straight.