Low-Fire-Hazard Wire and Cable
9-35
Catalog 1654025 Dimensions are in millimeters Dimensions are shown for USA: 1-800-522-6752 South America: 55-11-3611-1514
Revised 12-04 and inches unless otherwise reference purposes only. Canada: 1-905-470-4425 Japan: 81-44-900-5102
specified. Values in brackets Specifications subject Mexico: 01-800-733-8926 Singapore: 65-4866-151
www.tycoelectronics.com are U.S. equivalents. to change. C. America: 52-55-5-729-0425 UK: 44-1793-528171
9
Wire and Cable
Type 99M
Applications
Type 99M wirehas a dual
wall construction of radia-
tion cross-linked modified
polyester.This combines
excellent mechanical per-
formance and chemical
resistance with a range of
enhanced firehazard
properties. Type 99M wire is
designed to meet the
stringent low firehazard
performance now being
specified by many authori-
ties, in particular for naval,
mass transit and industrial
control panel wiring.
During the 1980’sthere
were major changes in the
demands of many wire and
cable specifications to
reduce the risks associated
with all aspects of fire
hazards. Specifications
such as Def Stan 61-12
Part 18, have been devel-
oped over the last decade
demanding improved
performance of wires
and cables under fire
conditions.
This has led to a tightening
of the requirements for
flammability, smoke genera-
tion, corrosive gas genera-
tion and hazardous fume
emission. Type 99M wire
achieves these improve-
ments in performance
whilst retaining small size,
light weight, flexibility,
handleability, resistance to
carbon arc tracking and
resistance to chemicals
and fluids.
Physical Characteristics
Handleability
Type 99M wire has been
designed to be compatible
with modern wiring and
harnessing techniques.
It is a flexible wirewith virtu-
ally no springback once
set. It is easily stripped with
tools such as conventional
die-blade strippers.
Small Size
Type 99M equipment wire
has a nominal 0.2 mm insu-
lation wall thickness which
is comparable to other
established thin wall wires
such as SPEC 44 wire.
Light Weight
Type 99M wireis designed
to have the same weights
as SPEC 44 wire.
Product Facts
nLow flammability
nLow smoke generation
nLow toxicity index
nLow generation of corrosive
gases
nSmall size, lightweight
Available in: Americas Europe Asia Pacific
nnn
Low-Fire-Hazard Wire and Cable
Type 99M (Continued)
9-36 Catalog 1654025 Dimensions are in millimeters Dimensions are shown for USA: 1-800-522-6752 South America: 55-11-3611-1514
Revised 12-04 and inches unless otherwise reference purposes only. Canada: 1-905-470-4425 Japan: 81-44-900-5102
specified. Values in brackets Specifications subject Mexico: 01-800-733-8926 Singapore: 65-4866-151
www.tycoelectronics.com are U.S. equivalents. to change. C. America: 52-55-5-729-0425 UK: 44-1793-528171
Raychem WCD 281
Def Stan 61-12 Part 18 Issue 4 Type 1
Italian Navy STN-SR-01
Lloyds Register
99M011X (600 V) 99M021X (1000 V) 99M1111 99M1121
Size Stranding ODWeight ODWeight ODWeight ODWeight
(mm) (g/m) (g/m) (g/m) (g/m)
2619x0.10 0.88 [.035] 2.00 1.01 [.040] 2.2 1.80 [.071] 7.5 2.91 [.115] 13.3
24 19x0.12 0.98 [.039] 3.00 1.17 [.046] 3.4 1.90 [.075] 9.2 3.20 [.126] 16.6
22 19x0.15 1.13 [.044] 4.40 1.37 [.054] 4.9 2.05 [.081] 11.1 3.52 [.139] 20.5
20 19x0.20 1.40 [.055] 6.50 1.57 [.062] 7.3 2.30 [.091] 14.6 4.02 [.158] 27.7
18 19x0.25 1.65 [.065] 9.90 1.85 [.073] 10.9 2.55 [.100] 19.3 4.57 [.180] 37.1
16 19x0.30 1.90 [.075] 14.15 2.10 [.083] 14.5 2.95 [.116] 24.9 5.13 [.202] 48.5
14 37x0.25 2.25 [.089] 18.62 2.50 [.098] 21.8 3.13 [.123] 30.9 5.72 [.225] 60.5
12 37x0.32 2.60 [.102] 25.70 2.97 [.117] 31.3 3.48 [.137] 43.4 6.42 [.253] 86.0
Typical Properties
Test Method Typical value
Temperature rating BS G230 125°C [257°F]
Voltage rating Raychem 600 V thin wall
Tensile strength/elongation of insulation — 30 MPa/250%
Notch propagation (0.05 mm notch) BS G230 Pass
Shrinkage 200°C [392°F] BS G230 <1%
Low temperature bend BS G230 -55°C [-67°F]
Voltage withstand BS G230 2.5 kV
Insulation resistance (20°C [68°F]) BS G230 1000 M ohms km (min)
Pliability rating Def Stan 61-12 (18) 82 - Pliable
Fluid resistance Def Stan 61-12 (18)
Fuels - aircraft Pass
Oils - (ASTM No 3) Pass
Solvents Pass
Type 99M Wire and Cable -
Nominal Sizes, Strandings
and Weights
Primary Wires/Shielded and
Jacketed Cables - 99M
99M011X (600 V)
Primary Wire 99M021X (1000 V)
Primary Wire
99M1111
Shielded & Jacketed 99M1121
Shielded & Jacketed
Approvals
Low-Fire-Hazard Wire and Cable
Type 99M (Continued)
9-37
Catalog 1654025 Dimensions are in millimeters Dimensions are shown for USA: 1-800-522-6752 South America: 55-11-3611-1514
Revised 12-04 and inches unless otherwise reference purposes only. Canada: 1-905-470-4425 Japan: 81-44-900-5102
specified. Values in brackets Specifications subject Mexico: 01-800-733-8926 Singapore: 65-4866-151
www.tycoelectronics.com are U.S. equivalents. to change. C. America: 52-55-5-729-0425 UK: 44-1793-528171
9
Wire and Cable
Environmental Properties
Mechanical Performance
The scrape abrasion and
cut through resistance of
Type 99M wire out performs
the well-established per-
formance of SPEC 44 wire
throughout its operating
temperature range.
Fluid Resistance
Type 99M wire demon-
strates outstanding resist-
ance to most acids, alkalis,
hydrocarbon solvents, fuels,
lubricants and water.
Electrical Arc Tracking
Type 99M wire is resistant to
electrical arc tracking under
both wet and dry condi-
tions.
Voltage Ratings
Standard available voltage
ratings for Type 99M wire
are 600 V (0.2 mm wall
thickness) and 1000 V (0.3
mm wall thickness).
Fire Hazard Characteristics
Low Toxicity Index
Type 99M wire is designed
to meet the low hazardous
fume emission levels
required in modern specifi-
cations. For example, the
change in the Toxicity Index
requirement from 1.5 to 0.2
between Issue 2 and Issue
3of Def Stan 61-12 (Part
18), is met by Type 99M
wire.
Flammability
Type 99M wire has passed
some of the most stringent
flammability tests, such as
the test in IEC 332 Part 3
(ladder test) and
Underwriter’s Laboratory for
VW1 (individual wire)
Smoke Generation
Type 99M wire has been
designed to meet stringent
smoke tests such as those
specified in Def Stan 61-12
(Part 18) and in many mass
transit specifications.
Fire Hazard Properties
Test Method Typical value
Flammability IEC 332 Pt 3 Pass
Toxicity index Def Stan 61-12 (18) 0.1 per meter of wire
Smoke index Def Stan 61-12 (18) 8 per meter of wire
Acid gas equivalent TDE 76/P/76 <1.5%
Corrosivity
Type 99M wire has a low
corrosive gas emission,
demonstrated by its low
acid gas value and meets
the latest requirements of
low fire hazard specifica-
tions.
Low-Fire-Hazard Wire and Cable
Type 99M (Continued)
9-38 Catalog 1654025 Dimensions are in millimeters Dimensions are shown for USA: 1-800-522-6752 South America: 55-11-3611-1514
Revised 12-04 and inches unless otherwise reference purposes only. Canada: 1-905-470-4425 Japan: 81-44-900-5102
specified. Values in brackets Specifications subject Mexico: 01-800-733-8926 Singapore: 65-4866-151
www.tycoelectronics.com are U.S. equivalents. to change. C. America: 52-55-5-729-0425 UK: 44-1793-528171
Jacket Color
(in accordance with MIL-STD-681, black preferred)
Primary Wire Insulation Color
0=Black 1=Brown 2=Red 2L=Pink 3=Orange 4=Yellow
45=Yellow/Green 5=Green 6=Blue 7=Violet 8=Grey 9=White
Additional number after base color indicates stripe
Conductor Size
Conductor Type
1 - Tin-plated copper 9 - Bare copper
Number of Conductors
1, 2, 3, 4 etc.
Class of Wire
1 - 600V equipment wire
2 - 1000V equipment wire
Constructions
0 - Primary wire & unscreened, unjacketed cables
1 - Round braid screened & jacketed*
9 - Special construction
Wire Type
M - Military wire
Basic Specification Number
99 X X X X X- Size- X/X- X
Part Numbering System
*The cable jackets are Raychem Zerohal and the preferred color is black.
