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A bituminous electrical backing board is a black panel or backing board fixed to a wall or an electrical switch box. The board has electrics attached, such as:
fuses
links
protection and control relays
contactors
small circuit breakers
meters
maximum demand indicators (MDIs).
In an electrical substation, bituminous backing boards are usually fixed to a steel frame attached to the substation's floor and walls.
Residential, Commercial, Industrial, Community infrastructure and spaces
Electrical and power boxes
As the mounting base for:
switchboards
protection panels
street lighting panels
auxiliary power boards
other electrical equipment.
LV boards, Power boards, Electrical boards, Electrical switchboard panels
Electrical backing boards are usually dark brown or black with a stiff and rough fibrous or wood-like surface. They may smell like tar.
Product brand names (Lebah, Zelemite, Miscolite or Ausbestos) may be stamped on the back of the board.
If a board has been identified by an electricity company as potentially containing asbestos, a warning sticker should be on the board or inside the meter box.
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Asbestos-containing bituminous backing board for electrical switchboard without warning sticker. The fuse on the lower left side also contains friable asbestos inside the fuse carrier.
Bituminous backing board for electrical switchboard without warning – Zelemite brand
Asbestos-containing bituminous backing board for electrical switchboard with warning – Zelemite brand. The Federal fuses may also contain friable asbestos.
Asbestos-containing bituminous backing board for electrical switchboard with warning – Zelemite brand
