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Salut,
J'ai trouvé ça sur google.
CL2P: NEC Article 725 covers remote-control, signaling and power-limited circuits that are not an integral part of a device or appliance. Type CL2P (class 2 plenum) cables are listed as being suitable for use in ducts, plenums and other space used for environmental air and shall also be listed as having adequate fire-resistant and low smoke-producing characteristics.
sinon j'ai aussi trouvé ça :
(A)].Class 2 circuits. Class 2 circuits typically include wiring for low-energy (100VA or less), low-voltage (under 30V) loads such as low-voltage lighting, thermostats, PLCs, security systems, and limited-energy voice, intercom, sound, and public address systems. You can also use them for twisted-pair or coaxial local area networks (LAN) [725.41(A)(4)].
Class 2 circuits protect against electrical fires by limiting the power to 100VA for circuits that operate at 30V or less, and 0.5VA for circuits between 30V and 150V. You protect against electric shock by limiting the current of the circuit to 5mA or less for circuits between 30V and 150V [Chapter 9, Table 11].
You can wire Class 2 circuits with Class 2 cable or any of its substitutes permitted by Table 725.61(A), depending on the condition of use
Le lien qui va bien :
http://ecmweb.com/mag/electric_understanding_nec_circuit/
J'ai trouvé ça sur google.
CL2P: NEC Article 725 covers remote-control, signaling and power-limited circuits that are not an integral part of a device or appliance. Type CL2P (class 2 plenum) cables are listed as being suitable for use in ducts, plenums and other space used for environmental air and shall also be listed as having adequate fire-resistant and low smoke-producing characteristics.
sinon j'ai aussi trouvé ça :
(A)].Class 2 circuits. Class 2 circuits typically include wiring for low-energy (100VA or less), low-voltage (under 30V) loads such as low-voltage lighting, thermostats, PLCs, security systems, and limited-energy voice, intercom, sound, and public address systems. You can also use them for twisted-pair or coaxial local area networks (LAN) [725.41(A)(4)].
Class 2 circuits protect against electrical fires by limiting the power to 100VA for circuits that operate at 30V or less, and 0.5VA for circuits between 30V and 150V. You protect against electric shock by limiting the current of the circuit to 5mA or less for circuits between 30V and 150V [Chapter 9, Table 11].
You can wire Class 2 circuits with Class 2 cable or any of its substitutes permitted by Table 725.61(A), depending on the condition of use
Le lien qui va bien :
http://ecmweb.com/mag/electric_understanding_nec_circuit/
rody
MERCI
