Planning - Notes; Fundamental Analysis; Perimeter - Definition - Xtrails ADPRO PRO-18 Planning And Commissioning Manual

ADPRO Passive-Infrared (PIR) PRO Series by Xtralis
5 Planning – Notes
Perimeter ('peri', from the Greek for 'round about') security measures have been in use for
centuries, if not for millennia. Spears, palisades, walls and moats have all been used as
effective defensive measures.
These generally very effective perimeter security mechanisms were intended not to let
potential attackers get close to the actual physical barriers (such as drawbridges or castle
walls), or at least to make this difficult for them. From very early on, then, measures were
taken and defensive force was used.
Current, modern perimeter security measures differ only in the measures (fences) and
devices (detectors) used from a historical castle moat. Not in the basic principle of a
concept of protection.
In addition to mechanical security systems, a variety of electronic detection and verification
measures are now available. Together with well-planned organisational measures, it is
therefore possible to make a real contribution to protection from unauthorised access, theft,
robbery, burglary and sabotage attacks such as arson.
But such systems can also be used for the protection of life and limb. An example of this
might be a deer crossing warning system which, in conjunction with electronic traffic lights,
prevents accidents. Or a monitoring system for platforms at transit stations, so that no one is
endangered by the suction of air from passing trains.
These non-binding planning notes are intended as a guide for insurance companies,
consultants, specifiers, layout engineers, judges, integrators, and of course users, to show
how through carefully planned perimeter security systems a reduction in risk in anticipation
of any possible threat can be achieved, as part of a wholistic plan for property security.
Because of the diversity and uniqueness of the sites and objects to be secured, and their
individual environments, the following can only go into the fundamentals. Possible solutions
and concepts will be presented by means of typical and commonly occurring cases.
5.1

Fundamental Analysis

5.1.1 Perimeter – Definition
For the purpose of these planning notes, a perimeter is an environment, generally of a
building, area or an industrial plant (such as oil wells, water tanks, solar power facilities,
transmission masts, logistic or distribution center, car dealer); the borders of this
environment; or focal points within this environment. Extending in the horizontal plane, the
legal boundary of the site is the furthest limit of the perimeter. An inner boundary (which
there necessarily need not be) can be formed by a building, a facility or similar, that is
situated within the range of the legal boundary. External walls of buildings within the
perimeter can also stand for inner boundaries; parts of the interior of buildings can also count
for the perimeter range. The perimeter also has vertical, legal boundaries. Depending on the
risk situation, it may be necessary to have perimeter surveillance in the vertical plane
(extending up or down).
These diagrams show the arrangements of the boundaries.
Doc. 20780_03
Planning and Commissioning Manual
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