The basics of device circuit breakers | Standards and approvals
7.3 Approvals for shipping
The three following shipping approvals are the most important ones for the industry :
• DNV-GL ( Det Norske Veritas und Germanischer Lloyd )
• LR ( Lloyd ’ s Register of Shipping )
• ABS ( American Bureau of Shipping )
The ambient conditions and influences on a shipping vessel are significantly harsher than in common machines and systems . For that reason , passing the required tests is very costly . Above all , impact , vibration , and EMC effects are tested at a very high level . This means that any device circuit breakers that are approved for shipping can be used in most environments without a second thought .
7.4 EU declaration of conformity ( CE marking )
An EU declaration of conformity is a manufacturer ' s way of certifying that the product it is placing on the market meets all of the applicable European directives and is in compliance with them . Electronic circuit breakers fall under the EMC Directive . This directive is the basis on which the declaration is being made . The EMC testing standards are applied in this case to test all of the criteria . If the product can be classified as safe and compliant , it receives CE marking .
Electronic circuit breakers are included among the equipment described in Directive 2014 / 30 / EU ( EMC Directive ). Articles 2 and 3 in section 1 of this directive define the scope of application and definitions of terms .
An excerpt from 2014 / 30 / EU : “ ‘ apparatus ’ means any finished appliance or combination thereof made available on the market as a single functional unit , intended for the end-user and liable to generate electromagnetic disturbance , or the performance of which is liable to be affected by such disturbance .”
Some important requirements of this directive are : Equipment must be designed and manufactured in accordance with the state of the art so that it meets the following criteria :
• The electrical interference it causes does not reach levels which would prevent wireless and telecommunication devices or other equipment from operating as intended .
• It is sufficiently resistant to the electromagnetic interference expected during proper operation to enable it to operate as intended without unreasonable impairment .
For the EU declaration of conformity , the fact that the devices meet the essential requirements of Directive 2014 / 30 / EU and comply with the specific EMC standards must be verifiably documented by means of a conformity assessment procedure .
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