Can reduce sign of overlapping jobs of transformer substation risk

The utility model discloses a can reduce sign of overlapping jobs of transformer substation risk, including the sign body, its positive first draw -in groove, a small clamping groove, second draw -ingroove, third draw -in groove, the 2nd small clamping groove and fourth draw -in groove of being equipped with, first draw -in groove, second draw -in groove, third draw -in groove and the equal blockof fourth draw -in groove have corresponding name denoter, a small clamping groove block have a plurality of digital denoters, the meaningful denoter of the 2nd small clamping groove block, each denoter all with draw -in groove detachably block. The utility model discloses a sign adopts the draw -in groove structure, can be according to the maintenance operation of difference, different denotersis gone into to the card, can prevent that the member of work class mistake from going into the fei benban work area, the risk and the control measure that point out this maintenance work to exist simultaneously, the operation