L and N in electricity - color marking of darts
The most important cable has different insulation veins. It has been upgraded to meet GOST R 50462-2009, which sets the standard for marking l n in electricity (phase and zero wires in electrical installations). Compliance with this rule guarantees security and safety for the robot of the master at the great industrial facility, and also allows you to avoid electrical injuries during independent repairs.
Raznomanіtnіst zabarvlennya іzolyatsії elektrokabelіv
The color marking of the wires is different and is connected to the grounding, phase and zero conductors. In order not to be a swindler, the PUE should regulate some kind of color wire for grounding vikoristovuvat at the power supply panel, like obstruction of ob'yazkovo it is required to vicorate for zero that phase.
Even the installation work was carried out by a highly qualified electrician, who knows the current standards of work with electrical wires, it is not possible to twist the indicator twist or a multimeter. The meaning of the skin lived on the cable is deciphered by the knowledge of the color designation.
Kolir lived grounding
From 01/01/2011 the colors were grounded (or grounded) maybe more yellow-green. Tse color marking wires are completed and the hour of ordering the schemes, for which they lived, they are signed with the Latin letters PE. Do not start on cables zabarvlennya odnієї z veins are recognized for grounding - start roaming like that in cables three, five or more veins.
For the sake of respect, I deserve PEN-wire with the “ground” and “zero”. Connections of this type are still often used in old booths, in which electrification was carried out according to old norms and was not renewed. As soon as the cable was laid according to the rules, then the blue color of the insulation was victorious, and yellow-green cambric was dressed on the ends of that stick. If you want, you can use the color of the grounding (zeroing) to the point of navpak - yellow-greens with blue tips.
The grounding and zero conductors can be connected with a tovshchina, often a thinner one for the phases, especially on cables, which can be used for connecting portable outbuildings.
Zahisne grounding є obov'yazkovym pіd hour laying lines at residential and industrial premises and regulated by PUE and GOST 18714-81 standards. The conductor of zero grounding is responsible for the mother of the least opir, they themselves stand for the grounding circuit. If all installation works are done correctly, grounding will be the best protector of life and health of people in case of electrical malfunctions. As a result, the correct sign of the cables for grounding may be less significant, and the zeroing in the fire is not guilty of zastosovuvatisya. All new houses are held according to the new rules, and the old ones are put in the line for replacement.
Zabarvlennya for zero drot
For "zero" (or zero working contact), there are no more wire colors, which are also strictly determined by electrical standards. Vіn can be blue, black or blue with a white female, moreover, it is independent of the number of conductors: a three-wire drіt in this plan is not allowed to be in any way in a five-wire or more large number of conductors. In electrical circuits, “zero” is replaced by the Latin letter N - vin takes part in the faucet of electricity generation, and in circuits it can be read as “minus” (phase, obviously, tse “plus”).
Colors for phase darts
The electric wires are especially protective and “important” from themselves, the stinks of the stench are strumovidnymi, and the unsafe dotik can cause a serious injury with an electric strum. The color marking of the wires for connecting the phase is different - it is not possible to set only the sum of the colors with blue, yellow and green. As if the world is so richly remembered, it’s possible to remember how the color of the phase’s dart can be - NOT blue or black, NOT yellow and green.
On electrical circuits, the phase is denoted by the Latin letter L. Such a marking itself is marked on the wires, although the color marking is not blocked. As a cable of appointments for connecting three phases, the phases should be marked with the letter L followed by a number. For example, for folding the scheme for a three-phase line 380 vicoristano L1, L2, L3. Other electricity accepted alternative designations: A, B, C.
Before the cob, it is necessary to signify, as it looks like a combination of darts behind the color and unsufferingly catch up on the reversed zabarvlennya.
Even the power supply circuit was thought out at the stage of preparation of the work and it was insured during the folding of electrical wiring diagrams, next to purchase the necessary amount of cables from the conductors of the necessary colors. If, after all, the necessary service ends, then you can remember to live by hand:
- splendid cambric;
- thermosetting cambric;
- duct tape.
About the standards of color marking of wires in Europe and Russia, one wonders just like this video:
Manual color marking
It stagnates in quiet moods, if during installation it is possible to vicorate darts with veins of the same zabarvlennya. This is often the case when working in the booths of an old spore, in which the installation of electrical wiring was carried out back to standards.
Electricians confirmed that there was no straying with a little maintenance of the electrical circuit, the sets were made, which allowed marking the phases of the darts. It is permitted by current rules, even if cables are made without color markings. The field of manual marking is regulated by the norms of PUE, DSTU and globally accepted recommendations. Vaughn creak at the end of the conductor there, de vin zadnuetsya with the bus.
Marking of double darts
If the cable is already connected to the wire, then for the search for phase darts in the electricity, a special indicator twist is installed - in the її case є svіtlodiod, which shines, if I add a sting to the phase.
True, it will only be effective for two-wire wires, even if it is the phases of a sprat, then it can be seen that the indicator is not possible. At such a time, you will have to turn on the darts and win the prodzvonok.
Standards do not need to work on such a mark on electrical conductors for all their days. It is allowed to indicate only in the places of the sticks and to make the necessary contacts. Therefore, if necessary, apply tags on electric cables without a designation, it is necessary to add materials, for marking them manually.
The number of vikoristovuvanih colors to fall in the form of the scheme, which is zastosovuetsya, but the main recommendation is all the same - it is important to choose the colors, which include the possibility of a swindler. Tobto. do not stop for phase darts blue, yellow or green marks. In a single-phase line, for example, the phase is indicated by a red color.
Three-core wires
If you need to determine the phase, zero grounding for three-wire rods, then you can try it with a multimeter. The attachment is installed on a variable voltage, and then the phases are carefully pushed with probes (you can know it with an indicator twist) and two wires in sequence, which are missing. Dali next to remember the indications that are equal to each other - the combination "phase-zero" sound shows more voltage, lower "phase-to-earth".
If the phase, zero and earth are assigned, marking can be applied. According to the rules, for grounding, it is necessary to conduct colorful yellow-greens, or rather, lived with such zabarvlennyam, so they mark it with an electrical tape of different colors. Zero, it is indicated, obviously, with blue tape, and the phase, be it any other.
As with prophylactic robots, it was clear that the marking was old, the cable was not replaced. Changes, up to current standards, using only electrical installations, which went well.
Yak pouch
The correct layout of the wires is the reason for the installation of the electrical wiring during the work being carried out, whether it be folding. It’s significantly easier, like the installation itself, so it’s farther away from the maintenance of the electric power supply. Sob the electricians “were called one mine”, created obov'yazkovy standards of color-printing marking, similar to each other in other countries. Vіdpovіdno before them L is the value of the phase, and N is zero.
