77-3X20FT 3M, 77-3X20FT Datasheet
77-3X20FT
Manufacturer Part Number
77-3X20FT
Description
TAPE FIRE AND ARC PROOFING 3"
Manufacturer
3M
Series
Scotch® 77r
Datasheet
1.77-1-12X20FT.pdf
(2 pages)
Specifications of 77-3X20FT
Tape Type
Fire Retardant
Thickness
0.030" (30 mils, 0.762mm)
Width
3.00" (76.20mm) 1/4'
Length
20' (6.1m) 6.7 yds
Color
Black
Usage
Electrical Cable Protection
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Temperature Range
-
Adhesive
-
Backing, Carrier
-
Thickness - Adhesive
-
Thickness - Backing, Carrier, Liner
-
Other names
00054007420064
05400742006
VE000029706
05400742006
VE000029706
Fire-Retardant Electric Arc Proofing Tape 77 Series
Data Sheet
Description
Applications
Typical Properties
Physical
Scotch
designed to protect all types of electrical cables. Its unique formulation allows the manufacture
of an unsupported elastomer that expands to provide a thick char buildup. This insulating shield
is designed to protect the cables and accessories from fault arc generated heat and flames. All
adjacent wrapped cables and accessories are protected when exposed to fault arcs until limiting
devices can interrupt the faulted circuit.
Because Scotch
conformable. Installers can provide wrinkle-free coverage of cables and irregularly-shaped
accessories, easily and rapidly. This exceptional conformability provides better product control
while wrapping and more uniform coverage. Also, the tape’s thick cross sections greatly reduce
the overall weight compared to other methods while providing equal or better arc protection
times. The light gray color allows for easy identification of the Scotch
Tape 77W.
One-half lap wrap provides adequate protection for most installations. However, additional
wraps can be applied, if conditions warrant, without requiring a reduction in conductor loads.
Not for specifications. Values are typical, not to be considered minimum or maximum.
Properties measured at room temperature 73° F (~23° C ) unless otherwise stated.
∗
Property (Test Method)
(ASTM D1000 unless noted)
Product Number
Color
Total Thickness
Breaking Strength
Elongation (% at break)
23° C
-12° C
-18° C
Flame Resistant
UL 94 (Self-extinguishing)
Oxygen Index *
ASTM D-2863
• To arc proof high-energy power cables where exposed to failures of other high-energy
• To arc proof control cable when high energy power cables are present
• Provide additional electrical insulation, thus reducing possibilities of transferred arcs.
• Resistant to water, salt water, acids, sewage, and ultraviolet light
• Light color allows for easy identification and location of fire damage.
• Can be removed and reused
cables (any cables within 18 inches are considered to be exposed)
Determines relative flammability of plastics by measuring the minimum concentration of oxygen in a
slowly rising mixture of oxygen and nitrogen that will support combustion. This test provides a means
of comparing relative flammability of physically self-supporting plastics.
®
Fire-Retardant Electric Arc Proofing Tape 77 Series is a fire-retardant arc proofing tape
®
Electric Arc Proofing Tapes 77 Series are unsupported, they are extremely
1 of 2
Black
77
.030 inches (0.76 mm)
1200 psi (8.3 MPa)
US units (metric)
Typical Value
29-30%
®
150%
130%
90%
Electric Arc Proofing
V-O
March 2009
Light gray
77W
3
77-3X20FT Summary of contents
Page 1
... This test provides a means of comparing relative flammability of physically self-supporting plastics. Fire-Retardant Electric Arc Proofing Tape 77 Series is a fire-retardant arc proofing tape ® Electric Arc Proofing Tapes 77 Series are unsupported, they are extremely ...
Page 2
... Scotch most effective and economical way to hold Scotch 77W in place is by banding (2 complete wraps) the first and last applied wrap. Shelf Life & Storage This product has a 5-year shelf life from date of manufacture when stored in a humidity controlled storage (10° ...