Significance in the notation of electric cables

This article we will try to answer all the parameters are in the general cabinet for you to understand. Let’s first read about the preceding symbols, there are some other symbols that are not symbols of electricity but we add them to your reference.

There are many schemes for distributing electrical cabinets in buildings, in a sample diagram of the distribution of electricity to a three-storey building, let’s start from the total electrical cabinet and lead to each floor in the building
– MCCB: (Molded case circuit breaker) is a block aptomat, used to cut large circuits up to 80KA (in household electrical appliances generally used for total aptomat)
– MCB: (Miniature Circuit Bkeaker) is a shrimps aptomat, used for small line breakers with low load (usually for floors) load up to 10KA
– 1P, 2P, 3P: 1 phase, 2 phase, 3 phase
– 20A: maximum 20 Amps
– Cu: symbol of copper (in the elemental table)
– PVC: Polyvinyl chloride: PVC pvc
– XLPE: insulation layer between the phases of the cable, XLPE insulator (for single phase, without this, two phase power up will have this parameter)
– DSTA: Double Aluminum tape Armored usually for 1 core cable
– E: Contact
The following will be the explanation of the meaning of the parameters for your reference, please look forward to your comments.

MCB-1p-20a: Aptomat 1 shrimp, single phase electricity, maximum capacity of 20 Amp
Cu / pvc 2 (1 × 1.5) mm2 + e (1 × 1.5) mm2 – on d16: Three cores of copper, PVC outer sheath, 1.5mm2 core, 1.5mm2 copper core
Cu / xlpe / pvc (2 × 6) mm2 + (1 × 6) mm2 – on d32: 3 pairs of copper coaxial two-phase, insulation between the phases is XLPE, 2 cores of 6mm2 cross section, 6mm2
-mc: 2-core 3-core copper wires, XLPE two-core insulation, two cores of 35mm2 cross section , A 35mm2 ground contact core
The above is the interpretation of the meaning of the parameters, you only need to understand the small and then we infer the whole out. The doctor found something wrong can comment comments help me.

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