Prepare for Installation

This section describes how to prepare for the installation.

Check Site Readiness

To ensure that the site is ready for installation, refer to the instructions below:

Civil and Mechanical Readiness

Ensure that:

  • The installation site (i.e., concrete pad or concrete surface) meets the conservative stability specifications given in the Express Plus Power Hub Site Design Guide, or has been inspected and approved by a structural engineer for the Power Hub dimensions and weight as given in the Express Plus Power Hub Site Design Guide .

  • The concrete pad is fully cured and smooth.

  • The slope at the installation site does not exceed 20 mm per meter (0.25 in per ft). If necessary, use a grinder or a hammer and chisel to remove any concrete that is not level with the rest of the concrete pad or surface.

  • Four anchor bolts are installed in the concrete at the each installation location specified by the site drawings, and in accordance with instructions given in the Express Plus Power Hub Site Design Guide .

  • The anchor bolt ends protrude 38 mm (1.5 in) above the concrete surface, and they are plumb.

  • The wires and conduits meet the requirements given in the site drawings.

  • The electrical equipment is installed and labeled in accordance with the National Electrical Code (NECClosed National Electric Code) and all applicable requirements of the serving electric utility company and the authority having jurisdiction.

  • The installation site meets the drainage and clearance guidelines given in the Express Plus Power Hub Site Design Guide .

  • Sufficient space is available to use a forklift or other lifting equipment, unpack, remove packing materials, and allow two people to freely move throughout the site.

Electrical Readiness

Refer to the Express Plus Power Hub Site Design Guide for electrical input and output specifications.

Required Tools and Materials

Installing the Power Hub requires at least two people. Additionally, the installer must bring the following tools and materials. These are not provided by ChargePoint.

Comply with these guidelines to prevent component damage.

  • Use appropriately sized tools to torque fasteners.

  • Use the given torque values to tighten the fasteners.

  • Ensure that the tools such as torque tool, multimeter, and Ethernet tester are calibrated.

Tools

Forklift

  • Rated for ≥ 240 kg (530 lb)

  • Maximum size of forklift tines:

    • Width = 102–127 mm (4–5 in)

    • Maximum thickness ≤ 57 mm (2.25 in)

  • If your site has height constraints, use alternative equipment

Flat eye web lifting sling

  • Rated for 240 kg (530 lb)

  • 1.8 m (6 ft length)

Hard hat

Cut-resistant gloves

Safety glasses

Stepladder

Cable ties

Drill and drill bits (3.2–6.4 mm (1/8–1/4 in))

Cable puller or fish tape

Measuring tape or other tool to measure height, length, and distance

Level

Lock out/tag out equipment

Multimeter with CAT III 1000 V ratings, such as Fluke 87V or similar

Ethernet tester such as a Klein Tools VDV526-052 VDV LANClosed Local Area Network Scout Jr. Tester or similar

Conduit cutter (to cut up to 2.5 in conduits)

Box cutter

  • Wire cutters, including for Ethernet (Cat6 Shielded Twisted Pair (STPClosed Shielded Twisted Pair)) cable

    		•

    Orange and white icon that represents a tool or action.

    Wire strippers, including Ethernet (Cat6 STPClosed Shielded Twisted Pair) cable

    Lug crimping tool and die

    Ethernet (RJ45) connector crimping tool

    Torque wrench

    Torque screwdriver

    Hex socket set (7/16 in, 9/16 in, 3/4 in, 15/16 in, including deep socket)

    Hex wrench set (3/16 in, 8 mm, and adjustable)

    T25 Torx screwdriver

    Flat head screwdriver set

    Phillips head screwdriver set

    Paper towel roll

    Torque paint pen

    Permanent marker

    Anti-oxidant joint compound and wire pulling lubricant

    Dielectric grease

    Duct seal compound

    Industrial vacuum cleaner

    Tightening Torque

    Power HubTorque Chart
      Component Fastener (Qty) Tool Torque Value

    Enclosure Body

    Anchor top nuts

    (no riser install)

    5/8 in nut

    (x4 per enclosure)

    15/16 in socket wrench

    94.9 Nm (70 ft-lb)

    Anchor bolts

    (riser install)

    M12 bolts

    (x4 per enclosure)

    8 mm hex wrench

    94.9 Nm (70 ft-lb)

    Panels and plates

    Dead fronts

    Captive screws

    (x2 per panel)

    #2 Phillips screwdriver

    5.6 Nm (50 in-lb)

    Gland plate

    T25 Torx screws

    (x8 per plate)

    T25 Torx screwdriver

    5.1 Nm (45 in-lb)

    Wire landing

    48 V DC input wire

    Set screw

    (x1 per wire)

    #2 Phillips screwdriver

    2.8 Nm (25 in-lb)

    48 V DC output wire

    Set screw

    (x1 per wire)

    #2 Phillips screwdriver

    1.7 Nm (15 in-lb)

    Ground wire lug nut

    1/4 in serrated nut

    (x1 per lug)

    7/16 in socket wrench

    4.9 Nm (43 in-lb)

    HV DCClosed High Voltage Direct Current wire lug nuts

    1/2 in nut

    (x2 per lug)

    3/4 in socket wrench

    61.6 Nm (45 ft-lb)

    Buses

    HV DCClosed High Voltage Direct Current input bus safety cover

    Captive screws

    (x4 per cover)

    3/16 in hex wrench

    2.8 Nm (25 in-lb)

    Materials

    • Fasteners for securing cabinet to anchor bolts

    • Ground wires, quantity and type as specified by site plan

    • High voltage DC wires, quantity and type as specified by site plan

    • 48 V DC wires, quantity and type as specified by site plan

    • Outdoor rated Cat6 Shielded Twisted Pair (STPClosed Shielded Twisted Pair) Ethernet cables, quantity as specified by site plan

    • Cat6 shielded connectors, quantity as specified by site plan

    • High voltage DC lugs

      • Must be Listed lugs

      • Must be nickel, tin, or silver plated copper compression (not mechanical) lugs

        • Nickel plated is recommended

      • Long tongue with two holes

      • 13 mm (1/2 in) hole size

      • 44.5 mm (1-3/4 in) hole spacing

      • Maximum tongue width 19 mm (3/4 in)

      • Quantity as specified by site plan

    • Ground wire lugs

      • Must be Listed lugs

      • Must be nickel, tin, or silver plated copper compression (not mechanical) lugs

        • Nickel plated is recommended

      • Single hole

      • M6 hole size

      • Maximum tongue width 19 mm (3/4 in)

      • Quantity as specified by site plan

    • Weatherproof sealant

    Power Hub Packages

    Power Hub Packages

    Product

    Package Detail

    Dimensions

    (L x W x H)

    Weight

    Power Hub

    Enclosure vertically bolted to pallet, wrapped in cardboard

    1.22 x 1.01 x 2.18 m

    (48 x 40 x 86 in)

    240 kg

    (530 lbs)

    Riser Kit

    Cardboard box

    0.79 x 0.22 x 0.11 m

    (31 x 8.5 x 4.5 in)

    7 kg

    (15.5 lb)

    Second Input Kit

    Cardboard box

    0.89 x 0.38 x 0.23 in

    (35 x 15 x 9 in)

    12.7 kg

    (28 lb)
    Always transport and store the Power Hub in its original packaging. Use appropriate lifting equipment (forklift or crane, lifting straps, and any corresponding attachments and accessories). Ensure the load rating of all lifting equipment is adequate for the weight of the Power Hub.
    Keep components in original packaging, free of moisture, and protected from damage until you install or service them at the site. Store all shipments of components in a dry covered location and protect from moisture.
    Leave components in original packaging until needed. When removing, protect them from damage (such as scratches) by placing them flat on a blanket or tarp, face up. Do not stand up cover panels, as they may be knocked or blown over.
    Keep components out of direct sunlight in a cool area until you install them.
    AN UNSECURED Power Hub IS HEAVY AND CAN CAUSE INJURY OR DEATH IF DROPPED. DO NOT STAND OR WALK BENEATH THE Power Hub WHILE IT IS BEING MOVED. TAKE PRECAUTIONS AGAINST THE Power Hub TIPPING OR SLIDING.

    Unpack the Power Hub

    The Power Hub ships vertically bolted to a pallet, and packaged in a cardboard wrap secured with straps. Before unpacking, use a forklift to transport the packaged Power Hub close to the installation site.

    1. Remove the cardboard wrap.

    2. Locate the cabinet key zip-tied to the cabinet door. Remove the key from the door. Unlock and open the cabinet door.

    3. Remove the high voltage cabinet dead front. Loosen two captive screws (x2) on the dead front until they disengage. Use the handles to lift the dead front up and off. Set it aside in a safe location.

    4. Remove the low voltage cabinet dead front. Loosen two captive screws (x2) on the dead front until they disengage. Use the handles to lift the dead front up and off. Set it aside in a safe location.

    5. Retrieve a cardboard box of installation parts from within the cabinet.

    Review Power Hub Parts

    Ensure all contents shown below are present.

    1. Power Hub cabinet

    2. Key

    3. High voltage lug fasteners (x40)

      • 1/2 x 2-1/4 inch bolt

      • 1/2 inch lock washer

      • 1/2 inch flat washer (x2)

      • 1/2 inch Belleville washer

      • 1/2 inch hex nut

    4. Ground lug fasteners (x12)

      • 1/4 inch serrated flange nut

    5. M12 Eye bolts (x4)

    Disconnect Power

    Risk of shock
    • Before any procedure, disconnect the power.
    • Follow local code and site lockout/tagout procedure to de-energize the station.
    • Wait for energy to dissipate (approximately five minutes).
    • Keep power off until all covers and panels are reinstalled and the work is complete.
    Failure to follow these instructions can result in serious injury, loss of life, or property damage.

    1. Disconnect power at the Power Block that feeds the Power Hub.

      Follow standard practice and local code to de-energize the applicable circuit and lock out/tag out the disconnect before proceeding.

    2. Use a multimeter to test that power is off.