Lift Modernisation
Lift modernisation can be a real alternative to a completely new system.
Pickerings Lifts offers a service that will modernise your lift, taking
into account aesthetics, change in use, reliability, energy costs and
safety regulations.
Aesthetics - There are many ways we
can change the look of your lift car to complement or contrast with any
décor. This can include new car operating panels, flooring, wall
finishes, handrails and ceiling lighting.
Change in Use -
Many lift modernisation schemes are undertaken at the time of a general
refurbishment or change in the use of the building. This is an ideal
opportunity to modernise the lift systems in the building to best meet
the future needs of the building. This may put different requirements on
the lift usage over and above the usual requirement to improve the
aesthetics of the lift and co-ordinate with the building's environment.
The
use of the building may require improved lift service. Also, the
expectations of passengers for lift service and waiting times have
changed, yet the provision of lifts in buildings is usually fixed.
Modernisation with modern microprocessor controls, state of the art
drive systems and modern door systems can improve the lifts response to
calls, cut waiting times and improve passenger traffic handling.
With
the range of options available and the individual requirements to be met
in modernising a lift, a specification should be drawn up for each
scheme to ensure that the most cost effective and appropriate measures
are used to deliver the benefits required. Let us work with you to
produce the ideal specification.
Reliability - A key
requirement to modernise a lift installation is to ensure the
reliability and minimise maintenance costs by the replacement of
components and systems which are becoming unreliable due to age and use.
Studies have shown that the area of lift equipment causing the most
call-outs are the door systems. These are not only intensively used but
also exposed to the everyday knocks, bumps and scrapes and even abuse.
Door systems are therefore very often at the top of the list for
replacement with newer, more robust and reliable equipment. Electrical
and control equipment is also a frequent cause of breakdown. This is
often associated with older relay based controls which are steadily
being replaced (and performance improved) with more reliable electronic
systems. Many other systems may affect reliability and longer term
maintenance of a lift installation.
Energy Costs - With
escalating energy costs and an increasing emphasis on "green" issues,
lift modernisation is an ideal opportunity to change the drive and
control system to reduce the electricity consumption of the lift. Modern
variable frequency drive systems are very much more efficient than their
predecessors and can lead to savings of between 20% and 40% depending on
the duty of the lift and the drive system being replaced. Many of these
savings are due to a reduction in lift energy usage and heat losses;
traditional lift drive systems draw large currents from the main supply,
much of which is wasted as heat. Variable frequency systems control the
power fed to the motor thereby reducing the currents drawn from the
supply and the heat wasted in the motor. The elimination of large surge
currents when the lift starts reduce the sizing and peak demand of the
lift electricity supply. These factors often reduce the size of
electrical supply and current drawn for a modernised lift installation
or allow capacity to be moved from the lift supply to other systems in
the building.
Safety Regulations - The standards and
regulations for the design of lifts and provisions for safe operation
and working have undergone steady improvement over many years. This
improvement has been possible due to technical developments allowing
safety improvements to be designed into lifts. More recently, EC
Directives have added requirements for safety features.
A lift
repair or modernisation scheme should aim to bring the safety of
replaced components and systems to current standards (except where the
building design makes this impracticable). It is important that the lift
is surveyed and a scheme drawn-up which takes full account not only of
the components which may need up-grading but also new features which
should be included. The Provision and Use of Work Equipment Regulations
1998 must be complied with by lift owners and have requirements for
guarding, controls and other items.
The recent EC Directive
95/216/EC Recommendations for Existing Lifts lists the following ten
recommendations for all existing lifts to bring them towards modern
standards:
-
Fit a car door and floor level indicator to all cars. Where the
fitting of a car door results in unacceptable reduction in the
entrance width, a multi-beam light curtain can be used to stop the
lift if the entrance is obstructed.
-
Car suspension cables should be subject to regular inspection and
possible replacement (a regular and thorough regime for inspection and
replacement of cables has been in use for many years by Pickerings
Service).
-
Modified controls to give gradual deceleration and accurate stopping
of the lift car. Old single speed drive systems suffer from harsh
stopping and poor levelling accuracy. Current technology allows two
speed control of hydraulic lifts and variable frequency control of
traction lifts to meet this recommendation.
-
Make car and landing controls intelligible and usable by unaccompanied
disabled persons. This is most easily done by following the
requirements of the Building Regulations (England and Wales - Part M,
Scotland - Part T).
-
Multi-beam infra-red edges can be fitted to existing doors to allow
doors to be re-opened due to any obstruction.
-
Fit safety gears to any suspended lifts which may not have these.
-
Alarm device in the lift car to establish a two way voice link to a
high speed rescue service. Pickerings can provide emergency telephones
connecting the lift user to our service network.
-
Eliminate asbestos in the braking system or wherever it exists.
-
Fit a device to protect against overspeed upwards of lifts with
counterweight.
-
Provide emergency car lighting (also providing power for the alarm
device in 7).
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