What is BS 4819-2 - Specification for portable transformers about?
The BS 4819 is a series of British Standard that discusses resistance welding water-cooled transformers of the press-package and portable types.
BS 4819-2 is the second part of the BS 4819 series that specifies the requirements, methods of test, service conditions, and rating of single-phase, mains frequency resistance welding water-cooled transformers of the portable type having a primary voltage of 660 V or less.
BS 4819-2 has been prepared to meet the needs of manufacturers and users for standardizing the dimensional requirements and method of rating transformers for portable spot welding guns.
Note: The titles of the publications referred to in this standard are listed on the inside back cover.
Who is BS 4819-2 - Specification for portable transformers for?
BS 4819-2 on specification for portable transformers is useful for:
- Portable transformer and reactor manufacturers
- Welding equipment manufacturers
- Construction, automotive, mechanical industry
- Sheet metal manufacturers
- Aerospace industry
Why should you use BS 4819-2 - Specification for portable transformers?
Portable transformer is a transportable water-cooled transformer consisting of a primary and secondary winding, electrically isolated from each other, used to supply welding current to, but remote from, a portable spot welding gun or guns. The portable transformer is normally positioned overhead, and electricity is transferred to the gun through kickless wires. These systems are still used for respotting/reworking, remote robots, and manual weapons. They are completely encased to ensure a long life.
BS 4819-2 provides you with guidance on design and construction, and covers testing methods that help demonstrate whether your products exhibit the characteristics required for optimal functioning. As a result, you can determine whether the portable transformer can withstand high voltages and electromechanical stresses and offer adequate insulation.
The measurement of temperature and safety measures to be put in place for portable type water-cooled transformers is also covered in BS 4819-2.
If you are a manufacturer, BS 4479-9 can help ensure the portable transformers are safe, reliable and effective for use.
