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Frequently Asked Questions.

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Why does Caneco BT offer me overdimensioned circuit-breakers when I’m making calculations for an IT installation?

The neutral system imposes additional checks such as the breaking capacity on one pole (see NF C 15-100 para. 5-533.3.1) and the number of poles (see NF C 15-100 para. 4-431.2.2).

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Caneco BT

The neutral system imposes additional checks such as the breaking capacity on one pole (see NF C 15-100 para. 5-533.3.1) and the number of poles (see NF C 15-100 para. 4-431.2.2).

Why does Caneco BT propose an overdimensioned switch (e.g. 800A for a consumption of 20A)?

Up until version 5.3, Caneco BT didn’t manage the coordination between a circuit-breaker and a switch. Please consult the manufacturer tables.

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Caneco BT

Up until version 5.3, Caneco BT didn’t manage the coordination between a circuit-breaker and a switch. Please consult the manufacturer tables.

How do I make calculations for circuits with circuit-breakers prior to 1992?

Caneco BT does not include manufacturer bases prior to 1990. However, you can select off-catalogue to obtain your protective requirement manually...

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Caneco BT

Caneco BT does not include manufacturer bases prior to 1990.
However, you can select off-catalogue to obtain your protective requirement manually.

Important: only the information you enter will be taken into account.

I can’t find the registered manufacturer circuit-breakers (e.g. DB90) in Caneco BT.

To select these circuit-breakers, you need to select the registered manufacturer database, then make sure the conditions of installation are compliant with the installation (Ik at the terminals, neutral rating, number of poles, voltage, etc.).

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Caneco BT

To select these circuit-breakers, you need to select the registered manufacturer database, then make sure the conditions of installation are compliant with the installation (Ik at the terminals, neutral rating, number of poles, voltage, etc.).

Caneco BT can’t find any circuit-breakers for calculation of a 690V IT installation

In this voltage range, the neutral system is most commonly chosen...

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Caneco BT

In this voltage range, the neutral system is most commonly chosen.

With an IT installation, you need to check the breaking capacity on one pole of the protection. The manufacturers don’t usually provide data for voltages above 415V. In this particular case, you can forcibly select an off-catalogue circuit-breaker and then you’ll need to approach the manufacturer directly to confirm or otherwise your choice.

When making calculations for an aluminium cable, Caneco BT tells me it’s “off-catalogue”

By default, Caneco BT limits aluminium cross-section calculations to 25 mm².
You can change this value in the menu Tools / Calculation options / Cables / "Aluminium cables from”.

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Caneco BT

By default, Caneco BT limits aluminium cross-section calculations to 25 mm².
You can change this value in the menu Tools / Calculation options / Cables / "Aluminium cables from”.

How do I insert a type of cable not offered by Caneco BT?

Caneco BT has an exhaustive list of the most widely used cables...

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Caneco BT

Caneco BT has an exhaustive list of the most widely used cables.
If you wish to use another type of cable, you can ascertain your link by indicating the type of PVC or PRC insulation (see (see NF C 15-100, Tables 52F and 52D).

I can’t find a model in the Caneco BT “User Selection by Model” list

In the circuit file, under “Additional Data”, check the manufacturer file called up and the year of the catalogue.

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Caneco BT

In the circuit file, under “Additional Data”, check the manufacturer file called up and the year of the catalogue.