The dielectric coupling for gas provides safety in premises, and saves lives to people.
Natural gas equipment is connected to power sources. In order to avoid an accident when electric current gets on the gas pipeline network, a protective insert should be mounted on gas appliances.
Purpose of the dielectric coupling for gas
To heat the water of the heating system, boilers and boilers are used. For cooking, stoves, ovens and hobs are placed in the kitchen. In the listed devices there is a system of control sensors, electric ignition, backlight oven. Therefore, the gas type of the device requires connection to the electrical network.
So that the current does not flow through the gas pipe inside the room, polyamide insulators are used - couplings. For a dielectric coupling for gas, yellow polyamide is used due to the low content of conductive impurities.
Dielectric insulating inserts, when current enters the gas network, will maintain the operability of gas devices and gas metering devices.
How a breakdown occurs on a gas network
Natural gas is supplied to homes and other premises through metal pipes laid underground in urban areas or above its surface in the private sector. The metal is corroded by moisture. Reducing the degree of corrosion helps supply a positive electric potential.
According to safety regulations, a dielectric coupling is installed on the pipe at the entrance to the house. This protects the gas riser indoors, provided that the clutch is installed correctly and in good condition. But the dull grounding of the pipe in the basement of the house can break due to corrosion.
Further, in a house or apartment, suppose a stove is connected to a riser through a rubber hose with a metal braid. If suddenly the insulation of the electric wire in the plate breaks, the current will go through the braid of the hose. Depending on the current strength, the warm-up and breakdown times of the hose will be short or long, but breakdown will happen.
Sometimes residents of the house ground on a gas pipe.
It may cause a fire if there is a gas leak in the apartment. Everything can do without sacrifices, but with material losses. After such an event, the question of why a dielectric coupling for gas is needed will no longer be hypothetical for residents.
How is the clutch
Details of the gas network are produced in several types according to the type of fastening: “fitting - fitting”, “nut - fitting”. The product is one-piece, one-piece, therefore safe to use. Any excess connection is a source of gas leakage.
High-quality couplings are made of brass, the thickness of the tube is at least 4.5 millimeters. The insulating part is made of yellow polyamide, which includes a “flame retardant”.
Selection of eyeliner and coupling
It is best to choose a bellows eyeliner coated with a yellow insulator. It is easier for housewives to wash such eyeliner from dust and kitchen soot. At the same time, the insulator protects against current flow when touching the bare terminals of the devices under voltage or the conductive case of the device.
Of course, you could put an inexpensive rubber hose. But rubber tends to age, lose elasticity, microcracks appear on the rubber hose - gas leak points.
Dielectric couplings for gas will protect against the flow of current through any hose. These parts are tested for breakdown by a current of 50 Hz and a voltage of 3.75 kV for 6 seconds or more. When applying a voltage of one kilovolt, the electrical resistance is 5 megohms. The inserts withstand temperatures ranging from -60 to +100 degrees. Insulator manufacturers guarantee a service life of at least 20 years.
By installing a dielectric coupling for gas, leaving home for business or taking a bath, the reader will be confident in the safety of housing, loved ones and neighbors. Dielectric insulator - protection against burn-in of the eyeliner, subsequent gas leakage and inevitable explosion.