Aluminum SER cable is primarily used as panel feeder in multiple unit dwellings and for branch circuits. Maximum operating temperature is not to exceed 90°C in wet locations. Voltage rating is 600 volts.
Aluminum SER cable has a compact strand soft drawn 8000 series aluminum conductor, per ASTM B-801
Aluminum SER cable has a type XHHW-2 cross linked polyethylene (XLP) insulation. The conductors are cabled together with a bare copper ground and covered with a reinforced binder tape. For color code, see table B in technical section.
Aluminum SER cable has a gray sunlight resistance polyvinyl chloride (PVC) jacket.
- Ampacities based on National Electric Code, 2005 edition, section 310-15
- 60°C when terminated to equipment for circuits rated 100amps or less or marked for 14ga through 1ga conductors
- 70°C when terminated to equipment for circuits rated over 100amps or marked for conductors larger than 1ga
- 90°C wet or dry locations
- For dwelling units, conductors shall be permitted at listed Ampacities to be utilized as 120/240 volt, 3-wire, single phase service
- conductors that supply the total load
- UL 44
ALUMINUM SER SERVICE ENTRANCE TYPE R CABLE
The aluminum service entrance cable is mainly used in branch circuits and panel feeders. Its voltage rating is at 600 volts. They are designed for use in adverse weather conditions. Operating temperatures is 900C in both wet and dry locations, however can operate at 600C when terminated to equipment for circuits rated at 100 amps or less or if its marked for 14ga through 1ga conductors. In addition it can operate at 700C when terminated to equipment in circuits rated over 100 amps or when marked for conductors larger than 1ga.
Aluminum home feeder cable has a compact stranded soft drawn 8000 series aluminum conductor in accordance to ASTM B-800 or B-801. The conductor is the electrode in the cable and is responsible for transmitting electric current.
It has cross-linked polyethylene (XLP) insulation. The conductors are normally cabled together with XLP insulated aluminum ground or bare copper ground and covered with a reinforced binder tape. XLP insulation is tough and is resistant to impact, abrasion, chemicals, acids, oils, industrial solvents and changes in weather.
Industrial ratings and approvals:
These are certifications given by international standards after products have undergone certain tests. These certifications indicate that the cable product has the attributes stated by the manufacturer. They also prove that the cable is genuine and safe for use. The aluminum cable has the following industrial ratings and approvals;
• National Electric Code (NEC)
• UL 44 for types RHH & RHW-2
• UL 854 for type USE-2
• ASTM standards B 801
• Sunlight resistant
The cable has ablack polyvinyl Chloride (PVC) jacket. The jacket protects the inner components of the cable from external forces that may cause damage to it. PVC is robust and is resistant to oil, sunlight, water, flames, acids, chemicals, radiation, impact, abrasion and weather changes. On the cable jacket are sequential footage markings that help the user identify the appropriate length during installation without guess work.
Question and Answer:
Frequently Asked Questions - Aluminum SER
What is the difference between Aluminum SER and SEU wires?
Both SER and SEU are type SE or Service Entrance cables which can come as a single conductor or multi-conductors used mainly for services. SER cable comes with a reinforcement tape while you can find an overall reinforcement and neutral tape which is applied concentrically in SEU. SER can be used at 600V while SEU is used at 600V and under 600V. SER usually comes with a color-coded XLPE lining.
When do you use Aluminum SER cables?
They can be used anywhere SE cables are permitted and they have to be installed in accordance with NEC® Article 230. They can be used for service conductors, branch circuits and feeders for residential purposes. They can also be used for small commercial purposes.
What is the advantage of using SER rather than SEU?
Both cables can be used for similar purposes, but when you use SER, you can actually cut down on your installation time. When you use SEU cables, you will have to untwist the neutral wires before you terminate the conductors and then you will have to twist them back again for termination. This is not required for Type SER Aluminum cables and so it is a much preferred option.
Is there a difference between Aluminum SER and Copper SER?
Yes, there is. Aluminum SER is made of 8000 alloy series, which makes it more flexible than Copper SER. It can be quite a task to bend Copper SER cables, especially when you have to bend them tightly as the copper gauge will be very large. Also aluminum is much easier to work with for service feeders and the price of aluminum is much less than copper.
How is the Aluminum SER constructed?
The conductors are made of 8000 series alloy that are compact and stranded. The conductors have a sunlight resistant insulation, which can be of two types - XHHW-2 or THHN/THWN-2. The conductors have a reinforcement tape wrapped around them, which strengthens them and gives uniform conformity. The gray outer jacket is made of PVC or polyvinyl chloride, which is also resistant to sunlight. You can find SER cables on the market in 2-4 phase conductors along with a bare neutral.
What are the specifications of Aluminum SER cables?
SER cable is RoHS obedient and Lead Free. It is in accordance with UL standard 83 (for THHN/THWN-2), 84 (for XHHW-2) and 854. It also complies with Federal Specification A-A-59544 and NEC/NFPA 70.