1.1. Construction features
CLARKIA transformers have been designed and manufactured strictly in accordance with standards IEC 60076-6.

Coils:

Coiling is made of copper class H-Grade 2/thermal class H.200, according to IEC 60317-3.
Insulation varnish for this copper is a polyester-IMIDA modified THEIC with a polyamide-IMIDA overcoat. This kind of winding wires are homologated according to UL-E103536 (NEMA MW-35C).
All our coils lack insulation boards, which makes them very reliable for humidity in tropical and marine climates, etc…
Insulation is achieved through fiberglass separators class F.
Coils have been designed and manufactured for use in a room temperature of 45ºC with insulations class F (155ºC) and a class B temperature increase (70ºC), always considering the continuous operation.
Optionally, copper strips can be also used.
All coils can carry additional regulation intakes +2,5%, -2,5%, +5%, -5%,etc… upon customer request.

Core:

We work with the best qualities of magnetic mat, supplied by the world’s leading manufacturers (ThyssenKrupp, f.e.).
Dimensional tolerances of materials fall within standard DIN 41.302 (Part 1).
Also magnetic properties of materials fall within standards EN 10106 and EN 10107.
All magnetic mats comply with REACH and RoHS regulations.