• Highly Flame Resistant
• Arc & Track Resistant
• Uncommon Dimensional Stability
• Strong & Durable; Yet Easily Cut & Chamfered
• Cost-Effective

GPO3 Pultruded Tubing is a fiberglass reinforced thermoset polyester composite in a pultruded tube. GPO3 Pultruded Tubing is flame resistant, track resistant. and it has a UL index rating of 130°C electrical and 160°C mechanical. GPO-3 tubing exhibits uncommon dimensional stability. It is impervious to high humidity or immersion. GPO3 is also strong and durable (with a burst strength of 1200 psi to 1400 psi); yet it is easily chamfered and cut with carbide or diamond saws. Tubing Composites are ideal for numerous tubing applications, and commonly used for a wide variety of fuses, from simple 15 amp fuses to heavy-duty 600 amp fuses. They are available in virtually any length or size in the standard color black; yet they can be customized to accommodate a range of other color preferences.

G5/G9 Tubes Glass Reinforced Melamine - natural (grayish brown)
This grade is composed of a continuous glass woven cloth base impregnated with a melamine resin binder. Melamines are the hardest of all laminates, exhibiting good dimensional stability and arc resistance. It is also caustic resistant.

G-9 is a laminate sheet comprised of flame retardant melamine resin and woven fiberglass glass substrate.? G9 is compliant with MIL I 24768/1, Type GME. G5 material is compliant to MIL I 24768/8 Type GMG.? The two melamine sheet materials are very similar except that the G-9 material has higher resiliency to harsh and adverse environments than the G5.? In most cases, the G-9 can be substituted for the G-5.

The G9 material has high strength and excellent arc resistance and electrical insulating properties which allows it to be used as mechanical support in electrical equipment, switchgear, and slot wedges where Class "B" insulation is required.? Out of all the thermoset laminates, Melamine is the hardest material making it extremely stable and rigid.? G-9 material is also resistant to most harsh chemicals.? G9 maximum operating material is 285° F.

NEMA grades G5 and G9 Glass-Cloth Reinforced Melamine -- natural color is typically a grayish brown. These grades are composed of a continuous glass woven cloth base impregnated with a melamine resin binder. (Melamine resins, once cured, are the hardest, most rigid and abrasion resistant of the standard resins employed in the production of industrial laminates. However, prolonged exposure to high temperature can adversely affect its mechanical and electrical strength properties. Arc resistance, however, may remain unaffected despite excessive thermal exposure.) Melamines are the hardest of laminates, exhibiting good dimensional stability and arc resistance. It's also caustic resistant. A key difference between NEMA Grades G5 and G9 are that G9 is more resistant to the elements of the environment. Thus, G9 can be safely substituted where G5 is called for
NEMA G-5 MIL-I-24768/8 GMG , IEC 60893-3 Type 3 MF GC 201

• GPO-3 TUBE ,Arc-Resistant GPO3 Fiberglass Tubes,GPO3 UTR Composite Tubing Data ：

  No	Test Item		Condition	Unit	?Typical Value			Test Method
  					YLJY-001 Pultruded Shapes	YLJY-002 Pultruded Rod	YLJY-003 BMC＆SMC
  1	Color		?	?	Red			?
  2	Specific Gravity		A	g/cm3	1.8～2.0	1.8～2.0	1.7～1.9	ASTMD792
  3	Water Absorption		D-24/23	%	0.2	0.12	≤0.14	ASTMD570
  4	Barcol Hardness		A	?	40～60	40～60	40～60	ASTMD2583
  5	????? Tensile Strength	Lengthwise	A	MPa	138	350	≥35	ASTMD638M
  		Crosswise			117	?
  6	Flexural Strength	Lengthwise	A	MPa	181	≥350	≥90	ASTMD790M
  		Crosswise			165	?
  7	Izod impact strength	Lengthwise	E-48/50 （notched）	J/cm	5.1	13	≥2.7	ASTMD256
  		Crosswise			5.2	?
  8	Vertical Layer Compressive Strength		A	MPa	227	≥65	≥124	ASTMD695
  9	Adhesive Steength		A	N	3747	4134	?	ASTMD229
  			E-48/50		4114	4628
  10	Parallel Layer Breakdown Voltage		A	KV	＞60	＞60	?	ASTMD149
  			D-48/50		40.6	54.1
  11	Vertical Layer Electric Strength		A	KV/mm	10.2	13.4	≥11.8
  12	Arc Resistance		A	Sec.	184	183	≥185	ASTMD495
  13	Comparative Tracking Index （CTI）		A	V	600	400	500	ASTM3638
  14	MinimumTracking Resistance		A	min	325	186	?	ASTMD2303
  15	Vertical Flammability		A	Class	V-0	V-0	V-0	UL94
  16	Pb Cd Cr6+ Hg PBBs PBDEs		A	mg/Kg	（N.D.）	（N.D.）	（N.D.）	RoHS Pony Test

  1. A：Normality；E-48/50:After50℃/48h;D-24/23:After 24h immersion in 23℃ water;D-48/50：
  After 48h immersion in 50℃ water.
  2. All typical values are arrived at through standard test procedure on related material
  specimens. There are no warranties,expressed or implies as to merchantability of fitness
  for a particular purpose. testing by the user will determine fitness of each product
  for a particular application.
  3. Comparied with the GPO3(ANSI/NEMA Grade LI-1) )、HM2471(DIN 7735 Grade)、UPGM203
  (IEC893/EN60893 Grade) , the? YLJY-001 material has similar electrical properties
  and better mechanical properties. The pultruded shapes and sheets made from the
  YLJY-001 material are available.
  4. UL file: E300341.Vol.1.
  

• G5/G9 TUBE TEST REPORT A :

  NO	NAME	UNIT	VALUE	TEST
  1	Density	g/cm3	≥1.8	1.89
  2	Water Absorption	%	≤0.4	0.37
  3	Compressive Strength	Mpa	≥70	98
  4	Flexural Strength	Mpa	≥150	160
  5	Cut Strength	Mpa	≥12	16
  6	Dielectric Strength, volt/mil  Perpendicular to Laminations	KV/mm	≥6	8
  7	Volume resistance rate(180℃）	MΩ.m	≥1.0*105	1.0*1011

• G5/G9 TUBE TEST REPORT B:

  NO	NAME		UNIT	VALUE	TEST
  1	Density		g/cm3	≥1.7	1.89
  2	Flexural Strength		Mpa	≥117.6	125.3
  3	Compressive Strength		Mpa	≥68.6	70.5
  4	CutStrength		Mpa	≥9.8	9.92
  5	Volume resistance rate	generally	MΩ.m	≥1.0*105	1.1*105
  		water		≥1.0*103	1.0*103
  		180℃		≥1.0*103	1.0*103
  6	Temperature Resistance		℃	≥350	425

• G-9 laminated angles and channels are molded to military specs and G9 is the preferred insulation material in switchgear structural applications for naval applications.
• Manufacturer of square and rectangular mold laminate tubes for cross bar insulation.
• Rectangular tubes from mold laminate for solenoid casings.
• Lamitex? round tubing for switch drives machined to your specification.
• Pultruded GPO-3 angle and channel insulation for structural supports machined to your specifications.
• Phase barriers and panels are custom fabricated from Lamitex? Nema grade laminates and glass polyester (GPO-3) sheet materials.
• High dielectric paper based sheet materials machined for mounting boards, insulating barriers, tap changer terminal board and tap changer insulated shafts.
• Electrical standoff insulators.
• High-temperature arc-resistant materials such as Mica board, Insularc? (mica filled cement board) machined for Arc chute applications.
• Vulcanized Fibre tubing for fuse tube applications.
• Filament wound overwrapped fibre tube, machined and painted to your specifications.
• Nema grade materials machined to tolerance for high-voltage insulation, transformer insulation, winding insulation, bus bar insulation and low-voltage insulation applications.
• Corrugated Nomex? for dry-type transformer cooling duct insulation
  GPO-3 TUBE ,Arc-Resistant GPO3 Fiberglass Tubes,GPO3 UTR Composite Tubing