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The electrical cross arm, also known as a power pole cross arm, is a critical component in power delivery and streetlight support systems. Made using a precise pressing process, it’s attached to utility poles via bolts and braces. Renowned manufacturer, Dapeng Power, ensures high-quality production using automatic machines and carefully selected raw materials.

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It is not easy to introduce all aspects of cross arm, so we have prepared a lot of information on this page for you to delve into. To make sure you can find the information you want quickly, we have prepared this content directory that will jump to the corresponding location when you click on it.

General Applications For Cross Arm

Crossarms are essential in various scenarios: aiding in quick restoration of power lines after storms, providing sturdy support for overhead power distribution in residential areas and telecommunication lines, extending the reach of electricity to remote rural locations, maintaining the robustness of urban power grids for consistent energy supply, and securing overhead highway lighting systems, thereby enhancing road safety and visibility

General Hot Selling Products

Alley Cross Arm Brace

The alley arm is a complex steel cross arm, also referred to as a side arm or brace. It’s used on overhead lines and utility poles, forming a triangular shape for firm support. Flexible installation options, secure lineman step, and strict BS4360-standard material selection make it reliable. Dapeng power guarantees hot-dip galvanized finishes, quality tested for smoothness and continuity, ensuring dependable, high-standard alley arm production

Angle Size(mm) Length(feet) Weight (kg)
45*45*5 7/2130mm 7.16
50*50*5 7/2130mm 8
50*50*6 8/2440mm 10.8

Cross Arm Pole

An electrical cross arm, also known as a light pole cross arm, telephone pole cross arm, or crossarm, is a robust and efficient pole hardware fitting crucial for supporting conductors in power transmission lines. Integral to power delivery and streetlight support, it’s attached to poles using various bolts. Dapeng power manufactures these cross arms through a precise pressing process, resulting in accurately-sized holes for effortless hardware assembly. Dapeng’s automated system bolsters efficiency, reduces costs, and ensures customer satisfaction.

Angle Size(mm) Length(mm) Weight(kg)
50*50*5 1600 6
65*65*5 1700 8.3
65*65*6 1800 10
70*70*5 1800 9.7
70*70*8 2000 16.7
75*75*8 2000 18
80*80*8 2200 21.2
100*80*8 2200 24
100*80*10 2400 32

U channel Cross Arm

  • Channel steel is an indispensable component in the field of overhead power transmission. Due to its U-shaped cross-section, it exhibits a unique combination of robustness and lightweight, making it an ideal material for utility poles, cross-arms, and other structural supports.
  • The primary function of channel steel in overhead power transmission is to provide a sturdy framework for holding the power lines, insulators, and other ancillary equipment aloft. Its superior strength-to-weight ratio ensures these structures can withstand environmental stressors like wind and ice, while not being overly heavy.
  • Channel steel is also highly adaptable, as it can be cut and welded into a variety of shapes and sizes to suit specific requirements. This allows for greater customization in the design and construction of power infrastructure, thereby enhancing efficiency and reliability of the power network.
  • The use of galvanized channel steel further improves its durability, providing excellent corrosion resistance, which is vital in regions with high humidity or salt air. This ensures the longevity of power transmission structures and reduces the need for frequent maintenance.
  • Overall, channel steel’s versatility, strength, and resilience make it a critical material in the overhead power transmission industry, helping to ensure a consistent and reliable flow of electricity across vast distances.
Angle Size(mm) Length(mm) Weight(kg)
63*40*4.8 1500 9.9
80*43*5 1800 14
100*50*5 2000 20

V Cross Arm

  • The V-type cross arm, also known as a double-span arm, plays a pivotal role in installations involving poles, such as power lines, telephone lines, and street lights. Acting as the primary attachment point, it accommodates a variety of fittings and accessories that are mounted onto the pole.
  • The design of the V-type cross arm involves two distinctive sides, each securely connected to the pole for maximum stability. This connection is reinforced with U-bolts and double arm bolts. Furthermore, numerous holes are present across the body of the cross arm, which serve as anchorage points for other fittings and accessories. These can be securely affixed using appropriate bolts. The V-shape design offers an increased surface area for attachment, as well as simplifies the connection process to the pole.
  • Manufactured from galvanized steel, the V-type cross arm boasts a high tensile strength that is critical for supporting the load of the attached accessories. The galvanization process lends an additional layer of protection against rust and corrosion, promoting durability and ensuring consistent, reliable performance over time.
Angle Size(mm) SpanLength(inch) Weight(kg)
38*38*5 42 2.9
38*38*5 48 4.3
40*40*5 48 5

Flat Steel Crossarm brace

The flat steel crossarm brace, similar in function to alley arm and angle braces, plays a crucial role in power infrastructure with its distinct construction. These braces enhance the structural integrity of the electrical crossarm. By using bolts and nuts, the braces establish a sturdy connection with the crossarm, providing necessary support and ensuring the robustness of the power pole crossarm. These braces are typically used in pairs to maximize stability.

Flat brace Size(mm) Length(inch) Weight(kg)
30*3 18'' 0.3
38*4 22'' 0.6
40*4 24'' 0.78

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Cross Arm Drawing

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Cross Arm Test

Tensile test of cross arm
Zinc coating test

Estimated Cost Analysis For Cross Arm

The Process Flow & Duration Estimation

Please note that the final cost depends on the customized service you require, the specifications of the raw materials used, the relevant national laws, and the distance of transportation. Take the example of booking a tall container of products:

Step 1:Drawing confirmation (1-2days)

Dapeng’s engineers will CAD drawings, according to the customer’s description of the drawings and get the customer’s confirmation to start the following links

Step 2: Sampling (2-4days)

the criticality of sample confirmation before mass production. It’s essential for ensuring product quality and functionality. We offer free samples, allowing clients to evaluate and provide feedback, thereby guaranteeing high-standard products and customer satisfaction.

Step 4: Bulk Manufacturing (5-10days)

The mass production of crossarms starts with designing, followed by material selection, usually high-quality steel. The steel is then cut, bent, and welded into shape. After that, each crossarm is hot-dip galvanized for corrosion resistance. A thorough quality inspection ensures only top-notch products are distributed.

Step 5: Shipping (10-15 days)

Cross arm packing: 50-100 pcs put on top of the wooden pallet, wrapped with winding film and finally packed with packing tape.

Want to know how to compress lead times?

To shorten delivery times, optimize production processes, streamline supply chains, maintain adequate inventory, and use expedited shipping services

The Common Pitfalls When Purchasing

  • Incorrect size:

    For instance, a buyer may order cross arms built with materials that are 6 mm thick. However, upon receipt of the product, they may find that the actual thickness of the materials used is only 5.5 mm. This discrepancy, albeit seemingly minor, can have significant implications on the performance and durability of the cross arms.

    The thickness of the materials used is a crucial factor that determines the strength and load-bearing capacity of the cross arms. If the thickness is not up to the specified standards, the cross arms may not be able to withstand the load they are designed to carry. This can lead to premature failure of the cross arms, leading to disruptions in power supply and potential safety hazards.

    Moreover, the use of thinner materials can also affect the lifespan of the cross arms. Thinner materials may not be able to withstand environmental stressors such as wind, ice, and corrosive elements, leading to faster degradation and shorter service life.

    To avoid falling into this trap, buyers should ensure thorough inspection and verification of the materials used. Requesting for certifications and conducting independent quality checks can also provide assurance of the material thickness and overall quality. This will not only ensure that the procured cross arms are reliable and durable but will also help avoid unnecessary replacement costs and downtime in the future.

  • inadequate thickness of the hot-dip galvanized layer, falling short of the international standard of 85 micrometers. This can lead to compromised corrosion resistance, reducing crossarm lifespan, and increasing maintenance costs due to premature wear and tear, posing potential risks to the power infrastructure’s reliability and safety.
  • The third trap is suppliers failing to adhere to blueprint specifications for crossarm holes and hole spacing. Such deviations can greatly affect subsequent construction, causing misalignments during installation, leading to structural instability, potential failures, and increased labor costs due to time-consuming adjustments or replacements, thus disrupting the continuity and reliability of power supply.
  • The fourth trap is insufficiently robust packaging from suppliers. This can lead to deformation of goods during transit, causing difficulties in unloading at the destination port. It could result in product damage, increased wastage, potential delays in project timelines, and extra costs related to replacements, thus affecting overall project efficiency and reliability.

A Brief Self-Nomination​, Why Choosese Dapeng power?

In today’s interconnected world, where traditional business methods are giving way to online transactions, the availability of power line fittings manufacturers is just a few clicks away. But what sets us apart in this crowded digital market? Our understanding goes beyond merely providing power line fittings. We aim to be a reliable, proficient, experienced, and approachable Chinese partner, dedicated to fueling your business growth and navigating new markets. Our commitment to excellent customer service remains unmatched. Trust us with your requirements, and we pledge to exceed your expectations, guarantee your satisfaction, and earn positive reviews. Let’s forge a successful partnership and strive together towards a robust and reliable power infrastructure.

  1. Complete production equipment to meet the production needs of different products.
  2. Excellent team of engineers
  3. 15 years of experience in the power line hardware industry
  4. Exporting to multiple countries is very clear about the special requirements for each country’s products.

Each product must complete two steps of testing before leaving the factory, the first tensile strength test, the second zinc layer thickness test, to ensure that each product is 100% qualified.

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The FAQs About Electrical Cross Arm

An elecrical crossarm, often referred to as a crossbar, is a key component in overhead power line systems. Predominantly, it's a horizontal beam that's affixed to an electrical pole. These poles with crossarms are a common sight in many landscapes, especially along roadsides and in rural areas. The crossarm is usually crafted from durable materials such as wood, steel, or advanced composites to endure harsh weather and environmental conditions.

The primary function of the crossarm is to support electrical insulators and lines. Insulators are attached to the crossarm, and they, in turn, hold the electric cables, creating a secure, elevated passage for electric current. This set up helps in the distribution or transmission of electrical power over significant distances. The crossarm design can vary depending on the voltage level of the line and specific requirements of the electrical infrastructure. Moreover, in some cases, crossarms can also accommodate additional equipment such as transformers or circuit breakers. Overall, crossarms play a pivotal role in maintaining the reliability and efficiency of our power systems.

Crossarms can be classified based on the material used in their construction and the application for which they are intended.

  1. Material Based:

    • Wood Crossarms: These are the traditional and most common type of crossarm, favored for their cost-effectiveness and ease of installation.
    • Steel Crossarms: These are durable and robust, offering better load-bearing capacity and corrosion resistance than wood. However, they are heavier and more expensive.
    • Composite Crossarms: These are made of fiber-reinforced polymers (FRP) or similar materials. They are lightweight, extremely durable, and resistant to weather and environmental conditions. They're more expensive but have longer service life.
  2. Application Based:

    • Distribution Crossarms: These are used in lower voltage applications (less than 69kV). They typically hold one to three insulators, corresponding to the phase conductors.
    • Transmission Crossarms: These are used in higher voltage applications (more than 69kV). They are larger and sturdier, designed to support multiple conductors.

Other variations might include single-phase, double crossarm, or even multi-tiered configurations, depending on specific utility standards or project requirements. Each type of crossarm has its pros and cons, and the selection depends on factors such as budget, load requirements, environmental conditions, and lifespan expectations.

The main purpose of a crossarm in electrical systems is to support insulators and overhead conductors or wires, effectively creating an elevated and secure pathway for the flow of electrical current. This arrangement aids in the transmission or distribution of electricity across vast distances. The crossarm helps to maintain the proper clearance between conductors, between conductors and the pole, and from the ground, which is crucial to ensure safety and prevent electrical faults. Furthermore, the sturdy positioning of conductors facilitated by the crossarm aids in withstanding environmental factors such as wind or ice load.

The main purpose of a crossarm in electrical systems is to support insulators and overhead conductors or wires, effectively creating an elevated and secure pathway for the flow of electrical current. This arrangement aids in the transmission or distribution of electricity across vast distances. The crossarm helps to maintain the proper clearance between conductors, between conductors and the pole, and from the ground, which is crucial to ensure safety and prevent electrical faults. Furthermore, the sturdy positioning of conductors facilitated by the crossarm aids in withstanding environmental factors such as wind or ice load.

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