Risk Assessments for Intruder Security Systems

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Risk Assessments procedures

All approved Security Alarm Installers must undertake a risk assessment of the property to be protected.

This operation entails gathering information necessary to design the correct intruder alarm system that corresponds to the risks and requirements of the property ie, the grade of the system to be used.

The risk assessment comprises of two assessments,

2 Location survey

A survey of the contents of the property, the total value of all the items listed (Electrical goods, Jewellery, money kept on site etc)

This will indicate the grade of security required,

1, Technical survey.

The Technical survey of the building looks at the structure of the building (How easy or difficult access to the property)

The type of physical security the property affords , type of area where the property is situated also has the property a history of forced intrusion.

Meanwhile, the technical survey looks at those factors than might influence the choice and design of system – as well as the final system design proposal. It will look at any aspect that might impact on the performance of the system, such as electrical interference from local plant or machinery.

The grade of intruder alarm system will depend upon the performance required, as determined by the location survey.

Grading of Intruder Alarm Systems

The grade of intruder alarm system may be particularly important if you are depending on the alarm system for insurance cover. Insurers may specify a particular grade of system or aspect of design, depending on the nature of the risk you are aiming to protect.

An overview of the grading system levels detailed in BS EN 50131- 1 is given below:

Grade 1 – Low risk
Intruders are expected to have little knowledge of the alarm system and may be restricted to a limited range of easily available tools.
Grade 2 – Low to medium risk
Intruders are expected to have a little more knowledge of the alarm system and use a general range of tools and some specialist equipment.
Grade 3 – Medium to high risk
Intruders are expected to be conversant with the alarm system and have a comprehensive range of tools and portable electronic equipment.  
Grade 4 – High risk

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