infrared camera electrical testing
Outdoor CCTV Security Cameras – you need to know
I live in Ottawa, the second coldest capital in the world. In Canada we have four seasons perfectly balanced, environment that makes us the ideal testing ground for outdoor security cameras.
I have several outdoor cameras at home and at work. All are exposed at low temperatures-35c and as high as 32c. Despite these extremes, I never fail a single outdoor unit camera.
You must think that I use fairly high-end cameras in heated enclosures. The truth is, these are typical outdoor security cameras that can be purchased in the $ 100 – $ 250 price range. None of them are protected by a fence. The cameras are all made of metal (unlike plastic, which can tear or warp in extreme conditions) and are equipped with infrared illumination. They are usually installed with an interception, so while they are exposed to some rainfall, they are rarely bombarded by intense rainfall.
Documentation with the most CCTV security cameras typically a range of temparatures which the camera can operate safely. If the documentation says a camera can operate in cold weather to a temparature of-10c, this does not mean that the camera will cease to work at-11c. These are operational guidelines that allow some wiggle room.
Some cameras are evaluated with the international protection Valuation Code, or as it is often called an IP or IP-code classification.
The code classifies the level of protection by an electric enclosure against ingress of solid objects, dust, accidental contact, and water. Many outdoor security cameras are rated IP55 or better.
The International Protection Rating consist of the letters IP followed by two digits. It is the numeric part of the code that is imporant. What follows is an explanation of the IP rating codes:
The first digit of the IP-code documents the level of protection that an enclosure provides against access to hazardous parts (electrical conductors, moving parts, etc.) and the penetration of solid foreign objects.
Level 0 offers no protection against contact and penetration of objects.
Level 1 provides protection against penetration of large surface the body, but no protection against deliberate contact with a body.
Level 2 offers protection against penetration fingers or similar objects.
Level 3 offers protection against penetration tools, thick wires
Level 4 offers the most protection against penetration wires and screws large objects
Level 5 Penetration of dust is not totally prevented, but it can not enter in sufficient quantity to interfere with the performance of the equipment, this level offers full protection against contact
Level 6 provides complete protection against dust penetration, full protection against contact
The second digit of the IP code refers to the equipment resistance to water penetration
Level 1 provides protection against dripping water
Level 2 Provides Protection against dripping water when the housing is tilted in a 15 ° angle to
Level 3 offers protection against the falling water as a spray at any angle to 60 ° from the vertical
Level 4 provides protection against water splashing against the enclosure from any direction
Level 5 offers protection from water through a nozzle against enclosure from one direction
Level 6 provides protection against water projected in powerful jets against the enclosure from any direction
Level 7 offers protection against water when the housing is immersed in water depths of less than 1 meter
Level 8 provides protection against water from the enclosure is immersed in water at a depth of more than 1 meter, as specified manufacturer
Always check the format of an IP camera you plan for outdoor use.
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