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6.101.1.4
Equipment for supplying SELV systems or S systems may not be incorporated in the connection
conductor or the plug.
7.1.1
The purpose of maintenance, is to keep the electrical installation in the required
condition.
Maintenance may consist of:
— preventive maintenance:which is carried out on a routine basis with the intention of preventing breakdown
and keeping equipment in good condition;
— corrective maintenance:which is carried out to repair or replace a defective part.
7.1.3
[not applicable]
7.2.3
Personnel who are to carry out the work shall be adequately instructed or skilled
i.e. they shall be competent for the task to be undertaken. They shall be equipped
with and use appropriate tools, measuring and testing devices and individual protective
equipment which shall be maintained in a good condition.
7.4.1.101
Ordinary persons may only replace DI or DII type cartridge fuses that are fully shrouded.
B.1.2 Calculation of the specified working distance
[not applicable]
B.2 Environmental conditions
The following atmospheric conditions are part of environmental conditions to be assessed.
B.2.1 Precipitation
Precipitation is taken to mean rain, snow, hail, drizzle, spray or hoarfrost.
Precipitation is said to be insignificant where it does not hinder the visibility
of the workers. Should visibility be impaired, it is said to be significant. According
to the voltage level, the type of installation
B.5 Arc hazard
B.5.1 General
Persons working in the vicinity of electrical installations are exposed to hazards
caused by an electrical arc. Electrical arcs are a rare event.
Nevertheless, a reliable protection is required as the appearance cannot be excluded
particularly since they can be caused by actions during working.
Electric arcs are not only a result of a short circuit, but also separating burdened
C.2 Uninterrupted supervision
If uninterrupted supervision applies, the work is interrupted whenever the supervisor
leaves the work location.
C.4 Supervisors
Nominated persons who have the authority to supervise will be given appropriate instruction
for this.
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Nieuwe NEN 3140 sterk doorontwikkeld
Als trainer en adviseur NEN 3140, werk ik nu alweer een paar weken met de nieuwe NEN 3140 + A2 (December 2018). Deze nieuwe NEN 3140 is sterk doorontwikkeld. Veel zaken waar je in de praktijk vaak tegen aanloopt, zijn nu scherper en concreter geformuleerd. Ook zijn technische, organisatorische en maatschappelijke ontwikkelingen meegenomen in deze nieuwe uitgave.
Dat begint al bij de installatieverantwoordelijke
Veiligheid mag geen sluitpost zijn
Juridisch adviseur geeft uitleg over het belang van NEN 3140
Veiligheid is van groot belang bij elektrotechnische installaties. De norm NEN 3140 beoogt deze veiligheid voldoende te waarborgen. Toch is er in de praktijk nog wat te winnen, stelt mr. Klaas van der Kolk van juridisch advies- en trainingsbureau Nova Juridica. “Uiteindelijk gaat het erom dat iedereen aan het eind van de dag weer veilig