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Gutter Clamps
Product Description: Iron Parallel Clamps are a type of electrical equipment mainly used for non-load-bearing conductor connections in overhead lines. Below is a detailed description of iron parallel clamps: Structural Features Slotted iron parallel clamps typically adopt a bolted structur...
Description
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Product Description:
Iron Parallel Clamps are a type of electrical equipment mainly used for non-load-bearing conductor connections in overhead lines. Below is a detailed description of iron parallel clamps:
Structural Features
Slotted iron parallel clamps typically adopt a bolted structure, consisting of a main body, a pressure plate, bolts, nuts, washers, etc. Both the main body and the pressure plate are usually made of cast iron, with slots on their upper and lower surfaces. Conductors to be connected are fixed in the pressure plates by the clamping force generated by the bolts. A two-bolt or three-bolt structure is generally used to ensure sufficient and uniform pressure on the conductors.
Material Properties
The body and pressure plate of slotted iron parallel clamps are made of forged iron in accordance with GB978-67 "Forged Iron Parts — Classification and Technical Requirements", offering high strength and toughness. Standard components such as bolts, nuts, and washers are manufactured in compliance with GB 5-76 "Hexagon Head Bolts (Coarse Thread)", GB 41-76 "Hexagon Nuts (Coarse Thread)", and GB 95-76 "Washers (Coarse Thread)" respectively. Surfaces are usually hot-dip galvanized, providing excellent oxidation resistance and corrosion protection.
Operational Advantages
Iron busbar clamps enable convenient connections. In complex conditions such as high-altitude work, personnel can relatively easily insert two conductors into the slots and complete the connection by tightening the bolts, which effectively improves line installation and maintenance efficiency. At the same time, they ensure excellent electrical conductivity, allowing current to flow smoothly from one conductor to another, thereby reducing power loss and the risk of line overheating.
Application Scenarios
They are mainly used for connecting small and medium cross-section aluminum stranded conductors or aluminum stranded conductors with steel cores, as well as steel conductors of overhead lightning protection lines at non-tension points. They are also widely used for jumper connections on non-linear supports.
Clamping Force
The clamping force of slotted bolted iron parallel clamps on conductors is approximately 10-20% of the conductor's calculated tensile strength, meeting the mechanical requirements for non-load-bearing connections.
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