Installing outdoor lighting is a great idea to illuminate, magnify and secure your garden. But, a crucial question quickly arises: which circuit breaker to choose to power this exterior lighting Yes, the circuit breaker is not an option, but a duty. But, no panic! We help you to make the right choice, without losing yourself in technical jargon.
The circuit breaker for outdoor lighting: an indispensable
The role of the circuit breaker for outdoor lighting
You're considering laying outdoor lights, but you're wondering if you can pass the circuit breaker box? The answer is no points to Christophe Coelho, founder of Lumihome. Unless you decide to opt for a Solar outdoor lighting, You need I'm not sure. this device. The circuit breaker acts as a essential safety system, able to automatically cut the current in case of a problem. It thus reduces the risks of fire, short circuit and electrocution.
The external lighting is highly exposed to weather conditions, which inevitably increases short circuitry. The circuit breaker therefore plays a role in the bodyguard for your installation and homeIt not only protects your equipment, but it also ensures your safety and that of your loved ones. In short, it is a small device that makes the difference between a reliable installation and a potential disaster.
The electrical standards to be met
In France, electrical installations, including for outdoor lighting, must comply with the standard NF C 15-100This standard governs the safety of electrical circuits in buildings and imposes specific requirements for outdoor environments. The following is the precise requirement for outdoor lighting:
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A circuit dedicated to the outside : The exterior luminaires shall be supplied by a separate circuit, protected by a circuit breaker.
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Mandatory differential protection : A 30 mA differential switch protection is required for all outdoor installations.
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Weather resistant equipment : All electrical equipment used outdoors (Waterproof housingsluminaires, circuit breakers) shall comply with a minimum protection index (IP44 for sheltered areas, IP65 for directly exposed areas).
The different types of circuit breakers for outdoor lighting
When we talk about circuit breakers, two big families break up:
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The differential circuit breaker : It detects the leaks of current to the earth (very useful to avoid electrocution).
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The magnetothermic circuit breaker : It protects against electrical short circuits and overloads.
For outdoor lighting, you will need both. But don't worry, both are often combined in one and the same ultra-practical device.
How to choose the right circuit breaker?
Choosing a circuit breaker is not a big deal: it's getting ready and it's calculated.
1 - The calibre of the circuit breaker
The choice of the right circuit breaker requires an accurate estimate of the electrical consumption of your lighting. Add the total power (in watts) of your future luminous points. To convert this power into intensity (in amperes), it is simple: divide total power by available voltage (usually 220 V in single phase).
Practical example:
With 5 200 W projectors, the total power is 1000 W. Divide 1,000 by 220: you get 4.55 A. A 10 A circuit breaker is therefore perfectly suited, easy to find in a specialist store.
2 - The sensitivity of the circuit breaker
Your circuit breaker must be compatible with your power grid:
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Monophased (P+N or DPN) for most houses.
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Three-phase (3P+N or tetrapolar) if you have this type of network.
Then pay attention to the sensitivity, which depends on the external risks. Weather (rain, wind, humidity) can damage the circuits, so your circuit breaker must react to any problem. curve C with sensitivity to 30 mA It is ideal for outdoor lighting. As soon as a current leak exceeds this value, the circuit breaker cuts off to avoid any danger.
3 - An environmentally-friendly circuit breaker
Your outdoor lighting will face the rain and cold. So make sure to choose a circuit breaker designed to withstand moisture and external conditions. If your equipment does not meet (inadequate IP index), you risk cuttings at the first shower!
4 - A circuit breaker with a differential switch
The winning duo? A circuit breaker and differential switch that work hand in hand to protect your installation. While the circuit breaker manages overloads and short circuits, the differential detects current leaks to avoid electrocution.
How to install your circuit breaker?
Are you ready to transform your exterior? Before you take out your tools, here are the essential steps for a secure installation!
Make an electrical diagram
Before we begin, it is essential to follow up on the recommendations of Standard NF C 15-100, which requires separating the electrical circuits inside and outside- No mix! The first step is to draw a clear sketch of your independent external circuit. adds Christophe Coelho. Avoid carefully risk areas, such as water points and roadways. This plan will be your roadmap for a clean and secure installation.
Check all: connections and grounding
Make sure everything is plugged in and the grounding is impeccable. It's your shield against surges and other electrical disasters.
Use a pro if needed
Don't you want to play electrician? Calling a professional is playing the security card, advises Christophe Coelho. In addition, he will be able to check that everything is in accordance with the standards and avoid cold sweats at the first storm.
Which circuit breaker for outdoor lighting? Errors to avoid
Oversize the circuit breaker
If you choose a circuit breaker that is too powerful, it will not be triggered in case of a problem, which can be dangerous.
Neglect leakproofness
If your facility is exposed to water, make sure that all equipment meets the standard minimum IP44This concerns not only luminaires, but also connection housings, Watertight connections The external electrical installations must be ready to brave the elements! To guarantee their durability, rely on l-Protection Index (IP). Do not hesitate to read our article for know which IP to choose. NDon't forget the mention EC, which attests to the compliance of the equipment with European standards. This small acronym is your assurance of reliable and secure equipment.
Choose a circuit breaker for outdoor lighting, it may look like a real puzzle. But with our recommendations, you have all the cards in hand to succeed! Follow the steps, meet the standards, and don't hesitate to call a professional if you need it. If this installation requires rigor, once in place, it will allow you to enjoy a garden perfectly illuminated and above all, Fully secure.
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