Basic composition of portable short-circuit grounding wire:
Portable short-circuit grounding wire (also known as portable short-circuit grounding wire) is the most essential personal safety protection equipment in power maintenance. It is used for temporary three-phase short circuit and grounding of power outage equipment/lines to prevent sudden incoming electricity, induced voltage, and residual charges from injuring people.

1、 Basic components (standard three-phase emergency configuration)

Insulated operating rod: made of epoxy glass cloth material, pressure resistant, lightweight, long handle, with length according to voltage level.

Wire end clamp: Double spring/spiral type, clamps the busbar/wire firmly and does not fall off.

Short circuit copper wire: multi strand soft copper (transparent PVC sheath), national standard ≥ 25mm ², 35mm ² for high current.

Grounding terminal clamp/grounding pin: grounding grid or driven into the ground.

Busbar clamp/three-phase short-circuit busbar: grounded after the three phases are combined.

2、 Core role (safety three insurances)

Prevent sudden incoming calls: In case of accidental power transmission, a short circuit may occur, causing the protection to trip and forcing a power outage.

Discharge residual charges: discharge capacitors, inductors for energy storage.

Anti induced voltage: Induced electrical discharge from adjacent live lines to the ground.

3、 Voltage level and specification selection (key comparison table)

Standard usage process for portable short-circuit grounding wire (safety sequence cannot be reversed)

1. Before homework (mandatory inspection)

Power outage of equipment and confirmation of no voltage during electrical inspection.

Inspection: The insulation rod has no cracks, the copper wire has no broken strands, the wire clamp is firm, and the sheath is intact.

Wear: insulated gloves, insulated boots, safety helmet.

Guardianship: One person operates, one person supervises.

2. Installation sequence (mnemonic: Ground first, then hang the wire)

First, connect the grounding terminal: firmly fasten the grounding clamp to the grounding grid/electrode.

Rear conductor end: Use an insulating rod to sequentially hang the three-phase wire clamps A/B/C phases.

Confirm clamping: pulling and pulling without looseness