Design aspects
Thanks to its experience developed throughout the years AEG has created ALFA, the new structure for primary low voltage distribution. Thanks to a company policy that aims at meeting the customers’ diversified requirements, with their versatility the ALFA cubicles provide an answer to all types of cabling.

Technical characteristics of the product
The modular ALFA cubicle is manufactured with a sheet metal load bearing structure with a thickness of 20/10 mm and can be easily assembled according to construction standards. Each internal component is subject to an industrial treatment with a galvanising process (sendzimir/aluzinc), while the external part is epoxypolyester powder coated in shade RAL 7035 (other shades upon request).
The structures are available with an IP30 or IP55 protection level according to the different requirements of the user. Higher protection levels are subject to an agreement between AEG and the customer.

Standardization and flexibility
The standardization of structures, of functional units and of dimensions makes the cubicle a flexible tool that can be used for any plant layout.

Practicality and advantages
All ALFA cubicles have been studied to answer to 3 requirements:
• Simplicity in creating the bus pathway. The modular characteristics of all internal components allow the pathway to be created according to fixed points thus requiring extremely little time.
• Bus pathway optimisation. Taking the new market demands into consideration the ALFA cubicles allow for the creation of the bus system, of connectors and of connections with a considerable saving on copper.
• Easy-to-fix internal components. All internal components have been manufactured so that they can be assembled by a single operator with highly innovative fixing systems.

Cell ventilation
As well as maintaining the required protection level, the ventilation system of the ALFA cubicles allows the preservation of the electrical characteristics of the various appliances as indicated by the manufacturers. The system is based on natural air circulation.

Fire safety
The use of insulating materials that do not spread fire and the internal metal segregations make the structure safe against the spreading of fire.

Efficient insulation
The whole bus system is designed and manufactured with air insulation. The insulators that form the bus anchoring system are made from blocks of stratified polyester glass (a non-hygroscopic material with elevated mechanical characteristics).

Buses and supports
The ALFA cubicles allow a wide range of supports to be fitted, creating the bus system according to 3 types of insulators:
• Linear insulators, from In=630A to In=5600 A with buses placed in parallel.
• Inclined insulators, from In=250 A to In=1250 A with inclined buses.
• Step insulators, from In=2000 A to In=4300 A with buses placed in parallel, but arranged on different levels.
All bus systems can be fixed horizontally or vertically with specific supports.

Segregations and segregation advice
The segregations of the ALFA cubicles are based on innovative fixing systems and on a particular design. Created using metal diaphragms they give access to the appliances in absolute safety for the operators, avoiding contacts, even accidental ones, with live parts. AEG cubicles allow the customer to create all types of segregations (1,2a,2b,3a,3b,4a,4b) according to CEI EN 61439-2. Particular types of segregations are available upon request.

Necessary screws and tools
M6 self-tapping screws with hexagonal size 5 male spanner and/or a size 10 fixed spanner.
M6 flanged screw with size 10 spanner.
M8 flanged screw with size 13 spanner.
M12 screws hexagonal size 8 male spanners.

Transport
All ALFA cubicles can be handled according to the customer’s requirements:
Thanks to:
• Plinths with reinforced removable flanges.
• Structure connection L bars.
It is possible to:
• Palletize the cubicle.
• Handle it by jib crane, bridge crane or rollers.

AEG reminds you that in all handling operations it is advisable to check that the ropes and chains are in good conditions and that the correct centre of gravity of the structure to be handled has been correctly assessed.