Letters the first is the material of the external insulation, in which B stands for polyvinyl chloride,
P for polyethylene, K for control conductor, R for rubber;
the second is the core sheath, in poland email list 2.3 million contact leads which B is PVC, R is rubber, P is polyethylene.
The combination of upper and lower case letters is an abbreviation of the terms:
Шв – protective wire, characteriz by its hermeticity
Ng is a non-combustible insulation layer for fire-fighting communications cables.
LS – degree of smoke emission during melting under the influence of open fire.
B – availability of additional booking.
Bb – double reinforcement in the form of steel strips is us.
E – the cable has shielding against be careful when sending email marketing high-frequency interference.
z – the gaps between the wires are fill with a special gel.
G – cable is suitable for networks with complex geometry due to its increas flexibility.
P – the wires are locat in the same plane, due to which the wire is flatten.
ozh – single-wire conductor in the cable.
The marking material is display only for aluminum cables (A)
Digital symbols indicate the number of cores, technical properties (voltage) and other numerical values.
Additionally, the following information is consider important:
dates of production;
manufacturer’s name;
number of cores in a multi-wire cable;
cross-section sizes;
permissible voltage limit.
Example: PPGng-LS 2×6 means a two-core trust review cable with two-layer polymer insulation,
with each conductor enclos in a separate sheath. The cable is us for laying in fire-hazardous areas, as it is non-flammable and has low smoke emission. The conductor cross-section is 6 mm2, which allows it to withstand voltages up to 660 V.
Insulation colors The marking consists
The use of different colors in the marking of the conductor sheath allows you
to obtain the requir connection information even without tools. For example:
r or brown wires are phase conductors (L);
blue ones are mount to zero (N); The marking consists
Earthing (PE) is indicat by a green or strip green and yellow color.
The cables also contain cores in white insulation, which are best install on the phase line, rather than for grounding or neutral lines, so as not to make a mistake in identifying the live wire.
