have carried out quite a large amount of work for this
particular customer over many years and were asked to tender for the
installation of some new power factor correction equipment.
We submitted our quotation and were
surprised to find that we had lost the contract, with the customer
stating that the winning contractor was 'significantly cheaper'.
12 months later we were asked to tender for the installation of an
extension to the GEC System 4 switchboard that is located immediately to
the right of the power factor correction panel shown in the photograph.
We won the contract
and when we came to install the switchboard extension, the reason our
price was so much more than the other contractor became clear.
The installation is
not at all neat, the cabling in the photograph has been very poorly
installed, but the worrying thing was that the cabling (4 x 120mm per
phase) went through a very tight hole that had been cut into the side of
both cubicles with the sharp edges of the steel cutting into the
insulation of the cable.
These cables had then
been connected directly onto the bus-bars of the switchboard which were
in turn protected by a 3200A air circuit breaker.
Should a fault have
occurred on the cables the resultant damage to the switchboard could
have led to a lengthy loss of production due to loss of power.
We are now in the
process of tendering to rectify this installation, so the customer is
effectively paying twice for this work, so maybe the initial quotation
was not so cheap after all!!