Surface Conduit Entry (SCE) Kit Installation

This section provides instruction on the Surface Conduit Entry (SCEClosed Surface Conduit Entry) Kit.

Purpose of SCE Kit

This SCEClosed Surface Conduit Entry kit is for Express Plus Power Block in situations where the site cannot run conductors underground or the site is not using stub-up entry through Concrete Mounting Template (CMT) embedded in a concrete pad.

This document is a supplement to the Express Plus Installation Guide instructions related to Power Block. Make sure to follow all instructions in the Installation Guide except for the ones about CMT and stub-up entry of wiring.

The illustrations in this document are for demonstration purposes only. Make sure to install the SCEClosed Surface Conduit Entry kit according to the proposed side of conduit entry in the site drawings.

SCE Kit Contents

The SCEClosed Surface Conduit Entry Kit contains the following contents:

Surface Conduit Entry Kit Contents: side cover, rear cover, SCE gland plate, M!6 anchor bolts, M16 space, M16 washer, M16 nut

  1. Side cover (1) - for left or right side of the Power Block pedestal

  2. Rear cover (1) - for rear side of the Power Block pedestal

    Both side and rear covers are included in this kit. You will only need one of these depending on which side of the pedestal the conduits enter inside the Power Block. Replace the standard cover shipped with the Power Block with a suitable cover and dispose of the unused covers in accordance with local municipal recycling guidelines.

  3. SCEClosed Surface Conduit Entry gland plate (1)

  4. M16 (5/8 in) anchor bolts (2) - for mounting SCEClosed Surface Conduit Entry gland plate

  5. M16 (5/8 in) spacer (2)

  6. M16 (5/8 in) washer (6)

  7. M16 (5/8 in) nut (6)

Required Tools and Materials

The following tools and materials are required:

  • Cut-resistant gloves

  • Protective eyewear

  • Marker

  • Vacuum

For Installing Anchor Bolts

  • Concrete drill with level feature recommended

  • 25 mm (1 in) and 6 mm (1/4 in) concrete bits

  • 24 mm (15/16 in) socket or open ended wrench

  • 750 ml of epoxy with bonding strength of 11.7 MPa minimum, compressive strength of 82.7 MPa minimum, and tensile strength of 49.3 MPa minimum, such as Hilti HIT-RE 500 V3 (normal cure time), Hilti HY-200 (fast curing), or similar.

  • Paper towels

    Different epoxy types have different cure times at various temperatures. Check local temperatures for the site in advance to help choose an appropriate epoxy.

  • Level

For Installing Surface Conduit Entry

  • Surface wireways: Refer to the Power Block and Power Link Site Design Guide and site drawings to find out the wiring and conduit requirements.

    A flexible conduit is recommended to route wiring from the SCEClosed Surface Conduit Entry gland plate into the pedestal gland plate (i.e., gland plate installed on the pedestal).

  • Sheet metal hole saw with pilot bit for conduit sizes listed in the Power Block and Power Link Site Design Guide.

  • Cable puller or fish tape.

  • Tools for cutting, assembling, and securing wireways.

Before You Begin

  • If CMT is used (i.e., embedded in concrete), make sure that the anchor bolts for the SCEClosed Surface Conduit Entry gland plate and Power Block pedestal are installed according to the proposed side of conduit entry and mounting specifications in the site drawings.

    Concrete Mounting Template embedded in concrete and anchor bolts for the gland plate and anchor bolts for the pedestal

    1. Anchor bolts for SCEClosed Surface Conduit Entry gland plate (example showing rear side conduit entry)

    2. CMT embedded in concrete

    3. Anchor bolts for Power Block pedestal

  • If CMT is not used (i.e., not embedded in concrete):

    • Make sure that the anchor bolts for the Power Block pedestal are installed according to the mounting specifications in the site drawings.

    Anchor bolt specifications for the pedestal when Concrete Mounting Template is not used

    • Refer to the site drawings to find out which side of the pedestal the conduits must enter inside the Power Block.

    • Make sure to dispose of the unused CMT in accordance with local municipal recycling guidelines.

 

Install Anchor Bolts

Skip this procedure if CMT is used and/or anchor bolts for the SCEClosed Surface Conduit Entry gland plate are already installed.

  1. Measure the locations for the SCEClosed Surface Conduit Entry gland plate anchor bolts and mark them using a marker.

    Measure the locations for the Surface Conduit Entry gland plate anchor bolts and mark them using a marker

    The illustration above shows SCEClosed Surface Conduit Entry gland plate anchor bolt locations at the left, right, or rear side of the Power Block. Measure the locations according to the proposed side of conduit entry in the site drawings. Also, make sure to leave enough clearance (i.e., 610 mm or 24 in) for servicing.

  2. Use the 6 mm (1/4 in) concrete drill bit to drill a pilot hole about 51 mm (2 in) deep at the two marked locations. The holes must be parallel to each other and perpendicular to the surface.

    Drill holes at the two marked anchor bolt locations and these holes must be parallel to each other and perpendicular to the surface

  3. Use a vacuum to clean dust from holes.

  4. Use the 25 mm (1 in) concrete drill bit to drill anchor holes a minimum of 229 mm (9 in) deep. Anchor bolts must have 127 mm +/- 12.7 mm (5 in +/- 1/2 in) above surface.

  5. Thread a washer and a nut onto each anchor bolt so that the measurement from the top of the nut to the top of the bolt is between 6.5 - 12.5 mm (0.25 - 0.5 in).

  6. Put a piece of tape above each nut to prevent it from floating upward when you rotate the bolt into the epoxy later.

  7. Prepare the epoxy. Ensure the applicator is dispensing correctly mixed epoxy before beginning work (for example, the Hilti epoxy is white when unmixed and gray when mixed).

  8. Fill the first anchor hole with epoxy until the epoxy is about 44.5 mm (1.75 in) from the top of the hole.

    Continue immediately to the next step because the epoxy sets within about eight minutes.

  9. Insert the anchor bolt into the hole. Rotate the anchor bolt as you insert it to draw epoxy into the threads. Take out the anchor bolt to see how close to the surface the epoxy has filled. If the epoxy is below surface level, add enough to fill the hole to surface level. Use paper towels to wipe off any excess.

  10. Measure the nut distance from the top of anchor bolt again and adjust if needed.

    Measure the nut distance from the top of anchor bolt again and adjust if needed

  11. Use a level to check that the anchor bolt is plumb. If needed, adjust it while the epoxy is still setting.

  12. Repeat the above epoxy steps for another anchor bolt.

  13. Allow the epoxy to cure for the initial cure time listed on the epoxy before beginning to install the surface conduit entry.

Install Surface Conduit Entry

You can install SCEClosed Surface Conduit Entry before or after the installation of Power Block pedestal.

  1. Install the SCEClosed Surface Conduit Entry gland plate onto the anchor bolts. Make sure that the bent edge of the SCEClosed Surface Conduit Entry gland plate is facing inwards to the Power Block pedestal.

  2. Install one nut and washer onto each (i.e., two) anchor bolt and flush against the base.

    Torque to 54 Nm (40 ft-lb).

    nstall one nut and washer onto each (that is, two) anchor bolt and flush against the base and torque it.

  3. Refer to the Power Block and Power Link Site Design Guide and site drawings to find out the proposed wiring and conduit requirements. Based on the proposed wiring and conduit requirements, draw a conduit layout to mark pilot hole locations on the SCEClosed Surface Conduit Entry gland plate.

    Conduit layout for demonstration purposes only

    The conduit layout shown below is for demonstration purposes only.
      Description Maximum Size No. of holes

    (a)

    		Holes for 48 V DC and Ethernet conduits 21 mm (3/4 in) 1 - 4

    (b)

    		Holes for AC input, DC output, or DC auxiliary input conduits 103 mm (4 in)

    1 (AC input)
    1 (DC auxiliary input)

    1 or 2 (DC output)
    Leave a minimum clearance of 15 mm (0.6 in) around the edges.

  4. Use a marker to mark pilot hole locations on the SCEClosed Surface Conduit Entry gland plate.

    Use a marker to mark pilot hole locations on the Surface Conduit Entry gland plate

  5. Use a suitable hole saw, position the hole saw's pilot bit on the marked location, and drill a hole into the SCEClosed Surface Conduit Entry gland plate. Repeat for other marked locations.

  6. Vacuum all metal shavings.

  7. Use a flexible conduit to route wiring from the SCEClosed Surface Conduit Entry gland plate into the pedestal gland plate.

    Use a flexible conduit to route wiring from the Surface Conduit Entry gland plate into the pedestal gland plate

    Refer to Connect Power Block Wiring to route and connect wiring inside the Power Block, and use the duct seal compound shipped with the Power Block to seal around each conduit inside the Power Block.

  8. Install pedestal covers.

    Reuse the screws shipped with the Power Block to install the pedestal covers. The installation instructions can be found in the Power Block Installation Guide.