The furnace electroheating for PET-2 electrotranspor
Are intended for heating of an electrorolling stock of railway transport (PET-2), service and production premises (PET-4).
When transporting the cylinder of a temperature regulator of the furnace of electric PET-4 has to be fixed from the face party of the furnace. In use the cylinder has to be in a special branch pipe or in the place where it is necessary to maintain the set temperature.
It is not admissible: - installation of the furnace in places, hits of drops of water and foreign objects in a temperature regulator.
- sharp bending of a capillary tube.
Indications of security measures:
To make all works on installation and removal of a temperature regulator from the furnace after disconnection of object from an electric network.
1.1. Furnaces the PET electroheating series called further ''Electric furnaces'' are intended for heating of an electrorolling stock, service and production (PET-1, PET-2, PET-3) premises
2. Main technical characteristics of the electric PET-4 furnace
2.1. Key parameters of furnaces of electric PET-4 see above.
2.2. At consecutive connection of furnaces of electric PET-4 their operation in a network with tension, multiple to the rated voltage of the furnace of electric PET-4 is allowed.
2.3. Furnaces are intended for work in the following conditions:
- vibration with a frequency from 3 to 51 Hz with acceleration to 5q;
- shock loading with acceleration to 3q;
- working position in space any, except conclusions up.
3. Delivery set
3.1. The furnace is electroheating
4. Device of furnaces electric
4.1. Furnaces electric the PET-1, PET-2 type, represent a set of the tubular electric heating elements mounted on the insulators placed in a casing from the sheet perfirovanny steel closed from below by a bottom, and from the face parties - covers.
4.2. Electric heaters of furnaces electric PET-1, PET-2 are connected consistently.
4.3. Current supply at furnaces electric PET-1, PET-2 is carried out through one of the openings in a casing located from three parties through contact hairpins.
4.4. PET-4 furnaces represent a set of the tubular heating elements and the panel mounted at the bottom and closed from above by a casing from sheet perfirovanny steel, and from the face parties covers. Electric heating elements of the furnace electric the PET-4 type are connected in parallel.
4.5. Current supply at furnaces electric PET-4 is carried out through openings in the cover located from current carrying hairpins.
4.6. On a casing of furnaces electric PET-1, PET-2, PET-3 is provided a bolt of grounding which the grounding wire surely joins at installation of the furnace electric on object.
4.7. On object, the furnace electric fastens by means of four legs, through an oval opening of 16х14 mm. M12 bolts.