What EN103 means to the customer:
The security industry has for years installed to the British Standard 4737. This is being replaced by a European Standard EN 5013.
Grade 1 - low risk - Like a Rural Village House
Grade 2 - low to medium risk - Like a Rural Town Shop
Grade 3 - medium to high risk - Like a Town based business
Grade 4 - high risk – Will be a Jewellers shop in a city.
For a Grade 1 system intruders are expected to have little knowledge of intruder alarm systems and be limited to a range of easily available tools.
A Grade 2 system expects intruders to have a limited knowledge of intruder alarm systems and the use of a general range of tools.
A Grade 3 system expects intruders to be conversant with intruder alarm systems and have access to a comprehensive range of tools.
A Grade 4 system is where security takes precedence over all other factors. At this level intruders are expected to have the ability and resources to plan an intrusion in detail and have a full range of specialised equipment, including means of substitution of vital components within the intruder alarm system. As you can see systems are evaluated against the risk of the level of intruder that may attack the system hence the requirement that system design meets the appropriate grade. The surveyor will grade your premises and design a system according to the above based on this criteria and information as to the environmental classification components and they are .
Class 1 = Indoors controlled temperature
Class 2 = Indoors uncontrolled
Class 3 = Outdoors sheltered
Class 4 = Outdoors exposed
The grading of a system based on a structured risk analysis and will determine the following.
The Extent of detection needed
What method of Signalling to be used – either audible or remote
The equipment level including battery standby
Tamper detection needed
For further details you are advised to contact your insurance company. A copy of the standards can be purchased from:
http://www.Bsi-global.com/electronic/pd662:2004.xalter