NELSON™ HEAT TRACING SYSTEMS
INSTALLATION
PLT-BS SPLICE CONNECTION KIT
DESCRIPTION
The PLT-BS Splice Connection Kit is for use with all versions of
Nelson Heat Tracing Systems’ LT, CLT, HLT and NC heater
cables. Compatible for use with any vendor’s heater cables
smaller than 11mm (0.44”) diameter. Minimum installation
temperature –40°C (-40°F).
Power Terminations
Terminal Block
Junction Box
Conduit Locknut
INSTRUCTIONS
KIT CONTENTS
1 Junction Box 2 Power Terminations
1 Terminal Block 1 Box Adapter
1 Conduit Locknut 1 Gasket
1 Sealing Grommet 1 Tube of Silicone
1 Stand-off 2 Pipe Clamps
1 Uninsulated Splice Connector
Silicone
Box Cover Gasket
Gasket
Box Adapter
Sealing Grommet
U-Grommet - Double Entry or non-standard construction
Stand-off
Box Cover
*ITEMS NOT INCLUDED IN KIT
*Heater Cable; see warnings below
Pipe Clamp
Note: This detail shows Braided “CB” Product only. For Overjacket “J” or “JT” Products, see
diagram on sheet 8.
!
WARNINGS:
Article 427 of the National Electric Code requires that all heaters shall have metal
coverings and be provided with branch circuit ground-fault protection.
If nuisance tripping of ground fault breakers occurs due to condensation in junction
box, electrical connections should be moisture proofed by use of a coating or sealant.
P.O. BOX 726 TULSA, OK 74101 TEL 918-627-5530 FAX 918-641-7336 www.nelsonheaters.com
GA-1860 Rev. 5
Sheet 1 of 8
January 2010
NELSON™ HEAT TRACING SYSTEMS
INSTALLATION
PLT-BS SPLICE CONNECTION KIT
INSTRUCTIONS
STAND-OFF POSITIONING
Section View A A
(recommend installing at the
4 or 8 o'clock positions.)
8 o'clock
4 o'clock
254mm (10")
A
A
Fiberglass Tape
not included in kit
Stand-off
1. Mark pipe where stand-off will be mounted. See drawing above.
2. Push heater cable through bottom opening of stand-off.
3. Place stand-off on pipe and fasten with pipe clamps included.
4. Slide the sealing grommet over the heater cable and position inside stand-off opening:
For Braided “CB” Products only:
See “Sealing Grommet Installation for Braided “CB” Products” on sheet 3.
5. Apply silicone around the heater cable on top of the sealing grommet and fill any voids in sealing grommet.
6. Slide the box adapter over the heater cable and tighten securely to stand-off.
7. Prepare heater cable for power termination:
for Braided “CB” Products, see sheet 3.
for Overjacket “J” or “JT” Products, see sheet 4.
8. Terminate heater cable, see sheet 7.
Fiberglass Tape
not included in kit
!
WARNING:
Do not place pipe clamps
over the heater cable.
Pipe Clamps
Stand-off
Sealing Grommet
Box Adapter
P.O. BOX 726 TULSA, OK 74101 TEL 918-627-5530 FAX 918-641-7336 www.nelsonheaters.com
GA-1860 Rev 5
Sheet 2 of 8
January 2010
NELSON™ HEAT TRACING SYSTEMS
INSTALLATION
PLT-BS SPLICE CONNECTION KIT
SEALING GROMMET INSTALLATION FOR BRAIDED “CB” PRODUCTS
13mm (.5")
1. Slide braid back, allowing at least 13mm (.5”)
of heater cable exposed.
2. Cut and remove the exposed heater cable.
BRAIDED “CB” PRODUCTS
3. Slide braid back over heater cable and twist
excess braid into a pigtail.
4. Slide the sealing grommet over the heater cable
and position inside stand-off opening.
5. Continue with step 5 on sheet 2.
INSTRUCTIONS
127mm (.5")
1. Secure heater cable braid with fiberglass tape,
allowing 127mm (5”) of cable for stripping.
2. Slide braid back towards the fib erglass tape
creating a bulge.
3. At the bulge, separate the braid to make an
opening.
P.O. BOX 726 TULSA, OK 74101 TEL 918-627-5530 FAX 918-641-7336 www.nelsonheaters.com
4. Bend heater cable and work it through the braid
opening.
114mm (4.5")
5. Pull the braid tight.
6. Proceed to “LT, CLT & HLT Products” on
sheet 5.
GA-1860 Rev. 5
Sheet 3 of 8
January 2010
NELSON™ HEAT TRACING SYSTEMS
INSTALLATION
PLT-BS SPLICE CONNECTION KIT
OVERJACKET PRODUCTS
127mm (5")
1. Lightly cut around heater overjacket 127mm
(5") from the end. Bend cable to break
overjacket.
2. Lightly cut overjacket up the center between
first cut mark and the cable end. Bend cable to
break overjacket.
!
WARNING:
DO NOT CUT BRAID
INSTRUCTIONS
5. At the bulge, separate the braid to make an
opening.
3. Remove overjacket from heater cable.
4. Move braid back toward the overjacket,
creating
a bulge.
6. While bending the heater cable, work it through
the braid opening.
7. Pull the braid tight.
8. Proceed to “LT, CLT & HLT Products” on
sheet 5.
114mm (4.5")
P.O. BOX 726 TULSA, OK 74101 TEL 918-627-5530 FAX 918-641-7336 www.nelsonheaters.com
GA-1860 Rev 5
Sheet 4 of 8
January 2010
NELSON™ HEAT TRACING SYSTEMS
INSTALLATION
PLT-BS SPLICE CONNECTION KIT
FOR ALL NELSON LT, CLT & HLT PRODUCTS
(See sheet 6 for an alternate stripping method for HLT products.)
102mm (4")
1. Lightly cut around cable outer jacket 102mm
(4") from the end. Bend cable to break outer
jacket.
2. Lightly cut the outer jacket up the center
between the first cut mark & the cable end.
Bend cable to break outer jacket.
5. Starting at the end, pull each bus wire away
6. Remove exposed core material.
from
the core material.
INSTRUCTIONS
3. Remove the jacket from the heater cable.
!
DO NOT CUT BUS WIRES
4. Shave the core material from the outside of
each bus wire.
P.O. BOX 726 TULSA, OK 74101 TEL 918-627-5530 FAX 918-641-7336 www.nelsonheaters.com
7. Cut 6mm (0.25") off the end of each bus wire.
8. Proceed to “Power Termination” on sheet 7.
GA-1860 Rev. 5
Sheet 5 of 8
January 2010
NELSON™ HEAT TRACING SYSTEMS
INSTALLATION
PLT-BS SPLICE CONNECTION KIT
HLT PRODUCTS ALTERNATE STRIPPING METHOD
102mm (4")
1. Lightly cut around cable outer jacket 102mm
(4") from the end. Bend cable to break outer
jacket.
2. Lightly cut the outer jacket up the center
between the first cut mark & the cable end.
Bend cable to break outer jacket.
5. Starting at the end, in the same plane as the
INSTRUCTIONS
cable, pull each bus wire away from the core
material.
3. Remove the jacket from the heater cable.
4. Make a cut inside each bus wire.
P.O. BOX 726 TULSA, OK 74101 TEL 918-627-5530 FAX 918-641-7336 www.nelsonheaters.com
GA-1860 Rev 5
Sheet 6 of 8
January 2010
6. Remove the exposed core material.
7. Remove the remaining core material off the
outside of each bus wire.
8. Cut 6mm (0.25") off the end of each bus wire.
9. Proceed to “Power Termination” on sheet 7.
NELSON™ HEAT TRACING SYSTEMS
INSTALLATION
PLT-BS SPLICE CONNECTION KIT
POWER TERMINATION
!
WARNING:
Bus wires must not touch or cross while
inserting into power termination.
Only power terminations / end seals
specifically approved for the vendor’s
style and type of heater cable must be
apply silicone here
1. Insert bus wires into power termination.
2. Squeeze power termination opening and fill
with silicone.
INSTRUCTIONS
13mm (.5")
3. Push power termination to overlap jacket.
4. The silicone will set up in about 30 minutes
with a complete cure after 24 hours.
5. Proceed to “Power Termination” on sheet 8.
P.O. BOX 726 TULSA, OK 74101 TEL 918-627-5530 FAX 918-641-7336 www.nelsonheaters.com
GA-1860 Rev. 5
Sheet 7 of 8
January 2010
NELSON™ HEAT TRACING SYSTEMS
INSTALLATION
PLT-BS SPLICE CONNECTION KIT
POWER CONNECTION
Braid
Terminal Block
Power Terminations (2)
Ground Braid
Heater Cable
Terminal Block Connection
Ground Braid
Heater Cable
INSTRUCTIONS
Note: This detail shows Overjacket “J” & “JT” Products only. For Braided “CB” Product, see
diagram on sheet 1.
1. Place gasket on box adapter.
2. Position junction box onto box adapter and secure it with the conduit locknut.
3. Connect bus wires and ground braid from both heater cables to the terminal block. See diagram above.
4. For Overjacket “J” or “JT” Products only:
Apply silicone at point braid leaves the overjacket
5. Push all wires, cables and terminal block inside junction box.
6. Place the box cover & box cover gasket onto junction box.
Nelson Heat Tracing Systems products are supplied with a limited warranty. Complete Terms and Conditions may be found on Nelson's
website at www.nelsonheaters.com
.
P.O. BOX 726 TULSA, OK 74101 TEL 918-627-5530 FAX 918-641-7336 www.nelsonheaters.com
GA-1860 Rev 5
Sheet 8 of 8
January 2010
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