Basic HTML Version
9/8
Dimensions
Section 10
Safety perimeters -
utilisation limits
Electrical
auxiliaries
9
Vigi modules and RCCB-ID residual current
circuit breakers
Implementation and operation
The test button (T) checks that the circuit breaker is working properly: verification is
b
b
recommended once a month
The residual current circuit breaker is reset whilst closed
b
b
The earth leakage module can be reset in 2 ways:
b
b
By resetting the Vigi module first then the circuit breaker
v
v
Or by resetting the Vigi module and circuit breaker at the same time (locking
v
v
operating handles)
Note: never allow the protection conductor to pass through the residual current
circuit- breaker or Vigi module.
Fluorescent lighting
Do not exceed 400 m of cables for 30 mA sensitivity
b
b
Do not exceed 12 x 65 watt tubes per phase and 24 tubes with the “si” type, for
b
b
non-compensated lighting
Protection of circuits and the residual current circuit breaker
This is usually achieved using a circuit breaker or gG fuse with a rating adapted to
b
b
the conductors’ cross-section. The residual current circuit breaker is thus
protected against overvoltages and shortcircuits
Application examples
Ib
b
∆
n: 10 or 30 mA
Protection against direct contact
v
v
Protection against indirect contact in IT and TN earthing systems (breaking of
v
v
protection conductor, etc.)
In highly-exposed situations (building sites, stalls, swimming pools, etc.).
v
v
Ib
b
∆
n: 300 mA
Sites with fire risks
v
v
Protection against indirect contact in TT earthing system
v
v
Ib
b
∆
n: selective 300 mA s
protection against indirect contact,
b
b
In TT earthing system
v
v
Allows vertical discrimination with earth leakage protection devices
v
v
y
30 mA
placed downstream
Very important!
Use of the earth leakage function in harsh environments
Safety of persons
An electrical installation can be subject to numerous elements:
b
b
Water, humidity
v
v
Dust
v
v
Corrosive substances, etc
v
v
These elements act in variable degrees depending on the installation site:
b
b
Camp site (humidity, salt spray, etc.)
v
v
Swimming pool (chlorine)
v
v
Laboratories (corrosive vapours), etc
v
v
In all of these cases:
b
b
Refer to the installation standard
v
v
Put the device in an IP 55 tight enclosure with a corrosion inhibitor or isolate
v
v
the area where the earth leakage device is located using a tight door
Air the site with clean air
v
v