Sheet Metal Powder Coating Process

   >> What is Powder Coating? Powder coating is a commonly used surface finishing technique. It is a type of coating that is applied as a free-flowing, dry powder. The powder coating process involves applying a finely ground resin (powder) to a substrate and subjecting...

Parts of IEC 61439 series

Parts of IEC 61439 series   IEC 61439-1 General rules   IEC 61439-2 Power switchgear and control gear ASSEMBLIES (Replacing IEC 60439-1)   IEC 61439-3 Distribution boards (to supersede IEC 60439-3)   IEC 61439-4 ASSEMBLIES for construction sites (to supersede IEC 60439-4)   IEC 61439-5 ASSEMBLIES for power distribution (to supersede...

The salt spray test

The salt spray test is a standardized test method used to check corrosion resistance of coated samples. Coatings provide corrosion resistance to metallic parts made of steel, zamak or brass. Since coatings can provide a high corrosion resistance through the intended life of the part in use, it is necessary to check corrosion resistance by other means. Salt spray test is an accelerated corrosion...

Check list of checks to be made during the final quality inspection (How to assemble a switchboard guide)

Compliance checks >>Identification & column numbers >>Type >>Dimensions >>Compliance of front panel, block diagram >>Handling devices Visual checks >>Paint (colour, homogeneity, finishing) >>No scratches and deformations Frame, structure >>Functioning of doors, swivelling front panels >>Locks (type,...

Electrical codes

Electrical codes are sets of rules established by governing bodies which state:   • Type of equipment to be used in a given situation • Appropriate use • Installation procedures, including how and where it should be installed Codes usually carry mandatory compliance, and can apply nationally or to a more limited area, such as a single local municipality. In any case,...

The new IEC 61439: better or worse than its predecessor 60439?

Improvements in IEC 61439 series compared to IEC 60439 series. The new document structure: Readability of the IEC 61439 has been improved compared to the IEC 60439 by implementing the new structure of the clauses: a) Clauses for normative reference and definitions are separated; b) Newly introduced in clause 4 is a table with all the typical units for LV systems; c) Also...

Insulation resistance testing

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Schneider Electric - Low voltage switchboards Quality inspection guide

  1. Introduction to quality inspection 1.1. Justification for quality inspection 4 1.2. Quality inspection function 5 1.3. Quality inspection responsibility 5 1.4. Quality inspector’s profile 5 1.5. Necessary documents 5 1.6. Required human resources 5 1.7....

IK Shock-Protection Rate

IK Shock-Protection Rate IK-Class  IK 00 No Shock-Protection  IK 01 Resistance against impacts with an energy up to 0,150 J IK 02 Resistance against impacts with an energy up to 0,200 J IK 03 Resistance against impacts with an energy up to 0,350 J IK 04 Resistance...

Wiring Pilot Devices on a Enclosure Door

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Cutting an square hole in an electrical enclosure

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Glow wire testing is performed by IEC61439-1

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