The Medium Voltage Indicator
The SafeSide™ R-1VH / R1VL Medium Voltage Indicator
increases safety for workers performing mechanical or electrical maintenance on
medium voltage equipment by helping to ensure isolation of electrical
energy. These indicators flash with
enough illumination to
allow safe viewing from outside the enclosure through an
access window (IR window) on a medium voltage starter, transformer, switchgear
and other power distribution equipment.
Built for long-life and reliability with solid-state LEDs
and flame-rated material, the Medium Voltage Indicators are available in
packages of 3 (one per phase) in two voltage cate
gories. Capacitive coupling between the Medium
Voltage Indicators and earth ground provide a means of completing the flashing
circuit without a hardwired ground connection, which provides enough energy to
flash the LEDs. Capacitive coupling also
provide high surge immunity and electrical installation integrity. The amount of energy transferred to the Medium
Voltage Indicator through capacitive coupling varies, and therefore determines
its flash rate and intensity. The key
factors include the line voltage, the distance between the adjoining phases,
and the size and distance of the ground plane (enclosure or other). Because of this, the Medium Voltage Indicator
with a flash rate optimized for applications on voltages between 2KV and 15KV
are sold under the part number R-1VL.
The Medium Voltage Indicator optimized for applications on voltages
between 15KV and 43KV are sold under the part number R-1VH.