How an ISO standard is developed?
A new ISO standard has to go through six maturity stages:
(10) PROPOSAL STAGE: we are at the very beginning: the very first document is called new work item pr...
Machinery Safety
EN 60204-1: Is it possible to delegate safety aspects to the users?
THE DOUBT
Can the machinery manufacturer require the user to install a Fuse or a Circuit Breaker to protect its Electrical Equipment? Can he require th...
Electrical Safety and Arc Flash Mitigation
Is manual reset a safety function?
THE DOUBT:
Should the Reset button in a machinery be handled by a safety module, or can it be one of several inputs to the Automation PLC?
The question can be ...
Functional Safety
Is it allowed to install the switch disconnector on the door of an industrial control panel?
THE DOUBT
When analysing switchboards, we sometimes notice that the main disconnector-switch is installed directly on the door of the switchboard, instead of o...
Electrical Safety and Arc Flash Mitigation
The old and the new approach of EU Legislation
Historically, EU legislation for goods has progressed through four main phases:
the traditional approach or ‘Old Approach’ with detailed texts c...
Machinery Directive
Could access to harmonised standards become free of charge?
harmonised standards free
Machinery Directive
Is the EU going to make Harmonised Standards compulsory?
compulsory harmonised standard
Machinery Directive
Type A, B and C Standards
Harmonized standards play an important role in the EU Legislation for the CE Marking of Machineries. ISO classifies the 800+ International technical standards h...
Machinery Safety
Circuit breakers
Circuit breakers are meant to protect the circuit from overcurrents, which can be divided in two categories:
overload, i.e. a current that settles in...
Electrical Safety and Arc Flash Mitigation
Machinery Directive: the Harmonised Standards
European harmonized standards have become the technical governing rules and are the obligatory way to reduce unnecessary risks and to meet the EU directives
Machinery Directive
Use of type B Residual Current Device
There is often confusion as to whether or not type B residual current devices are required to protect lines in which variable speed drives are used to control a...
Electrical Safety and Arc Flash Mitigation
CE Marking for self made machinery
THE DOUBT: If an employer makes a machinery for use in its own factory, does he have to CE mark it?
CONSIDERATIONS:
Let’s first clarify two important con...
Machinery Directive
