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B
BUMP
A flash or sudden jump in light level (a snap cue)
BUMP CUE
A lighting cue that instantly bumps the lighting up to a brighter level.
Usually at the end of a musical number to draw the applause.
BURNT OUT
A colored gel that has lost its color or melted through due to excessive
heat in front of a lantern. Dark blues and greens etc. are most susceptible,
and may need replacing during a long run.
BUSBAR
Metal bar carrying incoming electrical supply into which portable dimmer
racks or other large power requirements can be wired directly. An enclosure
containing busbars is a Busbar Chamber.
BREAKOUT
Cable connecting device that breaks multi circuit cable into individual
circuits.
BULGIN PLUG & SOCKET
A bulgin plug or socket is an 8 way mains connection found on lighting
controllers. Each Plug or socket can handle up to 4 lighting circuits at 5
Amps per circuit.
BUMP BUTTON
A momentary button or switch on a console allows for manual flashing of
lighting fixtures.
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