Heat-resistant cable for baths and saunas

The choice of cable for laying in the bathhouse or sauna should be approached with the utmost responsibility, since not only the reliability of the wiring, but also the safety of people depends on how correctly this choice is made. The peculiarity of the bath rooms is that the temperature in them can reach + 170 ° C, and the humidity can reach 90%. For this reason, the cable must be suitable, satisfying these difficult conditions.

Of course, both the bathhouse and the sauna usually include more than one room, each of which has its own temperature regime, and therefore the cable is required for different rooms different. For laying the lighting network in the dressing room, they are quite suitable conventional cables like PVA, VVG, AVVG or NYM. But what about the steam room, if you need to connect both lighting and an electric oven there? A special heat-resistant cable is needed here, and there may be several options.

Meanwhile, one should not forget that in wooden rooms, even an ordinary cable for the dressing room, must be protected by a plastic box, despite the fact that the room is almost dry. Domestic cables of PPGNG-HF 3 * 1.5, VVGNG-LS 3 * 1.5 or NYM 3 * 1.5 brands are suitable for the first group of rooms - for wiring lighting in the dressing rooms. For sockets in the dressing rooms, it is better that the wire cross section be at least 2.5 square mm.

The second group of rooms is directly a bathhouse or a sauna. Here you need a special heat-resistant cable. Of the domestic options, three RCGMs 1 * 2.5, PVCA 1 * 2.5, PRKA 1 * 2.5 or PAL 1 * 2.5, or three-core PMTK 3 * 2.5, PNBS 3 * 2.5, or PRKS 3 * 2.5 are suitable. Wiring, plus everything, must have a protective earth.

So, as heat-resistant cables for baths and saunas, they most often use:

• three RKGM 1 * 2.5;

• three PVCWs 1 * 2.5;

• three PRKA 1 * 2.5;

• three PAL 1 * 2.5;

• PMTK 3 * 2.5;

• PNBS 3 * 2.5;

• PRKS 3 * 2.5.

RKGM

“R”, “K” - isolation from silicone rubber, “G”, “M” - bare copper core. The main purpose of this wire is the manufacture of electrical equipment leads, which works in the absence of harmful effects of aggressive environments and oils.

Characteristic of this type of wire is that it does not support combustion, is resistant to mold, resistant to high and low atmospheric pressure, as well as to mechanical shock and vibration. Ozone and solar radiation are also not able to harm this wire.

Silicone rubber insulation and fiberglass braid allow safe use of this cable at temperatures up to + 180 ° C, as well as at 100% humidity.

The conductive cable core is a copper multi-wire. The fiberglass cable braid is impregnated with heat-resistant silicone varnish. Thanks to these advantages, the cable RKGM is often used as a heat-resistant cable for saunas and baths.

PVCW

“P” - wire, “B” - for the terminals of electric machines, “KV” - insulation from two-layer silicone rubber. Designed for the manufacture of conclusions of class "H" windings, for equipment operating in the absence of exposure to oils and aggressive environments. Withstands temperatures up to + 180 ° C, can work in conditions of high humidity.

A characteristic feature of the wire is the flexibility of the conductive core, withstands at least 20 bending cycles. High and low atmospheric pressure is safe for the wire. The wire is resistant to vibration and mechanical shock. The insulation is resistant to mold and impregnating compounds, does not spread combustion. These qualities allow the use of this wire for wiring in baths and saunas.

PRKA

“P” is a wire with a copper conductive core, “RK” is insulated from silicone rubber impregnated with anti-putrefactive composition, and “A” is of increased hardness.This cable is usually used for the installation of electric heaters, electric motors, and also often when installing electrical wiring in drying chambers, in saunas and in baths. The wire insulation is halogen-free, does not spread combustion, is resistant to mold, ozone, solar radiation, in addition, it has low smoke and gas emission. The insulation withstands temperatures up to + 180 ° C and humidity up to 98%. The wire easily bends during installation.

PAL

“P” - wire, “A” - in asbestos insulation, “L” - varnished. This chimney wire can withstand temperatures of even + 300 ° C for 3,000 hours, but when heated from + 250 ° C, the insulation becomes toxic, and you need to keep this in mind. For fixed installation of electrical wiring in a bath or in a sauna, this wire is perfect.

The wire is mechanically strong, resistant to abrasion, resistant to gasoline, silicone varnish, technical toluene. In the temperature range from -50 ° C to + 200 ° C, it is completely environmentally friendly. On top of the conductive core there is a single-layer asbestos roving impregnated with organosilicon varnish, then a fluoroplast-4 film, and enamelled asbestos yarn on top of the fluoroplast. Able to withstand 20 bending cycles.

PMTK

“P” - wire, “M” - mounting, “T” - heat-resistant, “K” - in isolation from silicone rubber. Designed for installation of equipment and electrical devices, including special applications, for example, heating equipment, electric stoves, electric furnaces. Suitable for wiring in baths and saunas.

The multi-wire copper conductive core in silicone insulation is UV-resistant, suitable for installation in rooms with 100% humidity, and reliably serves in the temperature range from -60 ° C to + 200 ° C. Insulation of the wire does not spread combustion during a single installation.

PNBS

Wire for fixed laying in baths and saunas. Specialized wire for electrical wiring of electric heaters, electric furnaces and other equipment operating in rooms with elevated temperatures.

The copper conductive conductors of the wire are insulated with silicone rubber, and the cable sheath is made of fluorosiloxane rubber. Fluorosiloxane rubber allows the cable to easily withstand temperatures up to + 150 ° C.

If for ordinary wires in simple rubber insulation, the connection directly to the heating device is unacceptable, then the heat-resistant silicone insulation of the PNBS wire allows this.

PRKS

Silicon-rubber insulated wire for bath and sauna applications. The cable sheath is also made of silicone rubber. The wire is flexible enough, and does not deform due to changes in temperature and humidity. The shell is resistant to oil and gasoline.

The cable safely tolerates temperatures up to + 250 ° C and does not become toxic when overheated. The multi-core version allows transmitting power up to 30 kW via one PRKS cable.

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