Two-piece barrier cable joint

Abstract

A cable joint assembly includes a hub body defining an internal passage. The cable joint assembly further includes an intermediate body defining an internal passage, where the hub body receives the intermediate body, the intermediate body having a first end and a second end opposite the first end, where the second end of the intermediate body includes a threaded engagement portion. The joint nut has a first end and an opposing second end, the first end of the joint nut snap-fit to the threaded engagement portion of the intermediate body to secure the cable in the cable joint assembly. The union nut has a first end and a second end, the first end of the union nut being threadingly coupled to the second end of the hub body, the second end of the union nut having a shoulder.

Description

Technical Field

[0001] The present disclosure relates generally to cable fittings. More particularly, the present disclosure relates to a cable fitting having a fitting nut configured to be coupled to a hub body. Background Art

[0002] Cable glands are used to terminate cables in hazardous and non-hazardous environments. More specifically, cable glands generally provide a method of terminating cables, such as unarmored cables (e.g., TC-type) and armored cables, at junction boxes, control centers, switchboards, enclosures, structures, and the like. Known cable glands are used to seal the joint between a cable and a device or structure into which the cable extends.

[0003] Furthermore, existing cable gland assemblies may be formed by assembling several components. At various times, it may be necessary to disassemble or reassemble the cable assembly, particularly for inspection purposes or to check the condition of the sealant (barrier compound). During the disassembly process, many components of a conventional cable gland may come apart, including those that do not need to be separated during disassembly. This makes the disassembly and reassembly of the cable gland assembly more complicated, time-consuming, and prone to error. Furthermore, environmental debris may enter the cable gland from the mating points of certain components because conventional cable gland assemblies may not provide a sufficiently strong seal between certain components. This may cause degradation of the cable or conductor and reduce the quality of the cable gland. Summary of the invention

[0004] In one embodiment, a cable connector assembly includes: a hub body having a first end configured to be threadedly coupled to a structure and a second end opposite the first end, wherein an outer portion of the second end of the hub body is threaded, and the hub body defines an internal passage. The cable connector assembly further includes an intermediate body having a unitary composite chamber defining an internal passage, wherein the hub body receives the intermediate body, the intermediate body having a first end and a second end opposite the first end, wherein the second end of the intermediate body includes a threaded engagement portion that extends outwardly beyond the second end of the hub body. The cable connector assembly further includes a fitting nut having a first end and an opposite second end, the first end of the fitting nut snap-fitting into the threaded engagement portion of the intermediate body to secure the cable in the cable connector, the fitting nut defining an internal passage, the internal passage of the fitting nut being in fluid communication with the internal passage of the intermediate body. The cable connector assembly further includes a union nut having a first end and a second end opposite to the first end, the first end of the union nut being threadedly connected to the second end of the hub body, the second end of the union nut having a shoulder, the union nut defining an internal passage so that the internal passage of the union nut is fluidically connected to the internal passage of the union nut and the internal passage of the intermediate body, wherein the union nut is assembled in the internal passage of the union nut.

[0005] In another embodiment, a cable connector assembly includes a hub body configured to receive at least a portion of a cable. The cable connector assembly further includes an intermediate body configured to receive at least a portion of the cable, the intermediate body having an intermediate body first portion disposed within the hub body and an intermediate body second portion extending outside the hub body, the intermediate body second portion having a threaded outer wall. The cable connector assembly further includes a connector nut configured to receive at least a portion of the cable, the connector nut having a first end and a second end, the first end having a plurality of elongated openings extending axially from the first end of the connector nut, wherein the plurality of openings define a plurality of circumferentially spaced apart fingers having a threaded inner wall engaged with the threaded outer wall of the intermediate body second portion, and the second end having a shoulder. The cable connector assembly further includes a union nut configured to receive at least a portion of the cable, the union nut having a first end and a second end, the first end receiving the connector nut and threading the connector nut to the hub body, the second end having a shoulder, when the union nut is twisted onto the hub body, the shoulder of the union nut applies an axial force to the connector nut, wherein the axial force pushes the connector nut toward the intermediate body so that the connector nut engages with the threaded outer wall of the second portion of the intermediate body.

[0006] In yet another embodiment, a method of installing a cable connector assembly includes providing the cable connector assembly. The cable connector assembly includes: a hub body having a first end configured to be threadedly coupled to a structure and a second end opposite the first end, wherein an outer portion of the second end of the hub body is threaded, and the hub body defines an internal passage. The cable connector assembly further includes an intermediate body defining the internal passage, wherein the hub body receives the intermediate body, the intermediate body having a first end and a second end opposite the first end, wherein the second end of the intermediate body includes a threaded engagement portion that extends outwardly beyond the second end of the hub body. The cable connector assembly includes a fitting nut having a first end and an opposite second end, the first end of the fitting nut snap-fitting into the threaded engagement portion of the intermediate body to secure the cable in the cable connector, the fitting nut defining an internal passage, the internal passage of the fitting nut being in fluid communication with the internal passage of the intermediate body. The cable connector assembly further includes a union nut having a first end and a second end opposite the first end, the first end of the union nut being threadedly coupled to the second end of the hub body, the second end of the union nut having a shoulder, the union nut defining an internal passage, such that the internal passage of the union nut is in fluid communication with the internal passage of the union nut and the internal passage of the intermediate body, wherein the union nut is configured to fit within the internal passage of the union nut. The method of installing the cable connector assembly further includes passing the cable through the internal passage of the hub body, the internal passage of the intermediate body, the internal passage of the union nut, and the internal passage of the union nut. The method of installing the cable connector assembly further includes coupling the hub body to the structure. The method of installing the cable connector assembly further includes inserting the intermediate body into the internal passage of the hub body. The method of installing the cable connector assembly further includes inserting the union nut into the internal passage of the union nut such that the shoulder of the union nut abuts against the shoulder of the union nut. The method of installing the cable connector assembly further includes twisting the union nut to threadably couple the union nut to the hub body, thereby pushing the union nut to snap fit into the threaded engagement portion of the intermediate body to secure the cable in the cable connector. The method of installing the cable connector assembly further includes unscrewing the union nut from the hub body. The method of installing the cable connector assembly further includes removing the intermediate body and the union nut engaged in a snap-fit ​​manner from the hub body, wherein the cable is secured within the intermediate body and the union nut without the union nut. The method of installing the cable connector assembly further includes applying a sealant at a first end of the intermediate body in an interior passage of the intermediate body. The method of installing the cable connector assembly further includes curing the sealant. The method of installing the cable connector assembly further includes reinserting the intermediate body and the union nut engaged in a snap-fit ​​manner into the interior passage of the hub body.The method of installing the cable joint assembly further includes twisting the union nut to threadably couple the union nut to the hub body to secure the intermediate body and the union nut in a snap-fit ​​engagement within the interior passage of the hub body. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In the accompanying drawings, structures are shown that, together with the detailed description provided below, describe exemplary embodiments of the claimed invention. Identical elements are identified with the same reference numerals. It should be understood that elements shown as a single component may be replaced with multiple components, and elements shown as multiple components may also be replaced with a single component. The drawings are not drawn to scale, and the proportions of certain elements may be exaggerated for illustrative purposes.

[0008] Figure 1 is a side view of a prior art cable connector assembly,

[0009] Figure 2 is a cross-sectional view of one embodiment of a cable connector assembly,

[0010] Figure 3 yes Figure 2 A perspective view of the middle body of the cable connector assembly,

[0011] Figure 4 yes Figure 2 A perspective view of the connector nut of a cable connector assembly.

[0012] Figure 5 yes Figure 2 A cross-sectional view of a cable connector assembly including a composite sealant and a cable disposed therein, and

[0013] Figure 6 is a cross-sectional view of an alternative embodiment of a cable connector assembly. DETAILED DESCRIPTION

[0014] refer to Figure 1, the existing cable joint 10 includes a hub body 12 for threaded engagement with the structure, a union nut 14 threadedly engaged with the hub body 12, and a union nut 16 threadedly engaged with the intermediate body 18. Therefore, in this configuration, securing the cable in the cable joint 10 requires the installer to twist three different parts. In addition, the existing cable joint may need to be disassembled or reassembled. During the disassembly process, many parts of the conventional cable joint may be separated, including those parts that do not need to be separated during disassembly. This makes the disassembly and reassembly of the cable joint assembly more complicated, time-consuming and prone to errors. In addition, environmental debris may enter the cable joint from the mating points of certain parts because the conventional cable joint may not provide a sufficiently strong seal between certain parts. This may cause cable degradation and reduce the quality of the cable joint. An example of where the existing cable joint may need to be disassembled is to apply a sealant in the hub body. Applying the sealant requires disassembling the union nut and the union nut to access the internal channel of the hub body. This process is time-consuming and may cause system failure if the accessories are not properly replaced. The present disclosure overcomes these and other deficiencies in the prior art.

[0015] An exemplary embodiment of the cable connector assembly 100 is as follows Figures 2 to 5 As shown. In general, the cable joint assembly 100 is configured to seal a joint between a cable 110 and a device or structure into which the cable extends. As explained in more detail below, the cable joint assembly 100 includes a joint nut 106 that is configured to engage the intermediate body 104 by deforming around a threaded portion 120 of the intermediate body 104. The other components of the cable joint assembly 100 described below are illustrative and may be of other designs or configurations.

[0016] The cable connector assembly 100 includes a hub body 102, an intermediate body 104, a connector nut 106, and a union nut 108, wherein the cable connector assembly 100 is configured to secure a portion of a cable 110 therein. The cable 110 may further include a cable armor 112 disposed around the cable 110. The hub body 102 has a first end 102A having an external connection thread 114 for screwing into a device, housing, or other structure. The hub body 102 further includes a second end 102B having an external thread 116 along a portion of the second end for threading with the union nut 108. The hub body 102 further includes an internal passage extending through the first end 102A and the second end 102B of the hub body 102. The hub body 102 may be formed of a metal, such as aluminum, stainless steel, or brass. The hub body 102 may further include a tool coupling portion 118 (e.g., a hexagonal or other polygonal structure) to help twist the hub body 102 onto the structure.

[0017] The hub body 102 receives the intermediate body 104 in the internal passage of the hub body 102. The intermediate body 104 has a first end 104A and a second end 104B opposite to the first end 104A. The first end 104A of the intermediate body 104 is disposed in the internal passage of the hub body 102. The second end 104B of the intermediate body 104 extends axially outward beyond the second end 102B of the hub body 102. The second end 104B of the intermediate body 104 further includes a threaded engagement portion 120. The threaded engagement portion 120 is formed by an external thread. The intermediate body 104 further includes an internal passage 122 extending through the first end 104A and the second end 104B of the intermediate body 104. The intermediate body can be formed of metal, such as aluminum, stainless steel, or brass. The cable connector assembly 100 can further include a flame path 124, which is disposed between the inner surface of the hub body 102 and the outer surface of the intermediate body 104 disposed in the hub body 102. The flame path 124 is a thin passage disposed between the inner surface of the hub body 102 and the outer surface of the intermediate body 104. The flame path 124 is configured to allow hot or volatile gases or vapors contained within the structure to slowly dissipate from the structure. The flame path 124 mitigates the accumulation of gases within the structure, which if not mitigated could result in catastrophic failure of the system. In addition, the flame path 124 can be configured to allow the hot gases to cool as they pass through the flame path 124 by dissipating the flame path, and allow the hot gases to exit the cable joint assembly 100.

[0018] like Figure 2 As shown, the flame path can be a stepped cylindrical flame path 124 that follows the corresponding stepped transition geometry of the inner surface of the hub body 102 and the outer surface of the intermediate body 104. In an alternative embodiment, the cable joint assembly 200 can include a tapered flame path 202. Figure 6 As shown, the tapered flame path follows the corresponding tapered transition geometry of the inner surface of the hub body 204 and the outer surface of the intermediate body 206 .

[0019] In the illustrated embodiment, the intermediate body 104 further includes a brush dam 126 disposed within the internal passage of the intermediate body 104. The brush dam 126 includes an annular filament holder 128 and a plurality of individual filaments 130 extending radially inwardly from the annular filament holder 128 to define an average inner radial range less than the radius defined by the annular filament holder 128. The free ends of the filaments define a longitudinal opening 132 extending through the brush dam 126. The filaments 130 may be formed of any suitable material, such as but not limited to plastic, nylon, polypropylene, polystyrene, tampico, horsehair, wire, etc. The filaments 130 are generally flexible or elastically deflectable along the length of the filaments 130. In the illustrated embodiment, the brush dam 126 is depicted as being located axially rearward of the step transition geometry of the intermediate body 104, however in alternative embodiments, the brush dam 104 may be disposed axially forward of the step transition geometry.

[0020] The brush baffle 126 is configured to allow the cable 110 to pass through the opening 132 while forming a barrier between the first end 104A and the second end 104B of the intermediate body 104 to inhibit the flow of a curable sealing compound 158 disposed within a compound chamber 160 of the intermediate body 104. Suitable examples of the sealant 158 ​​include, but are not limited to, epoxy fillers and Chico® sealants commercially available from Eaton Corporation PLC. The compound chamber 160 is disposed within the interior passage 122 of the intermediate body 104. Figure 5 In the illustrated embodiment, the compound chamber 160 is located axially forward of the brush guard 126. When cured, the sealant 158 ​​acts as a sealant within the cable joint assembly 100 that restricts the ingress and passage of gases, vapors, or flames into and through the cable joint assembly 100.

[0021] The cable connector assembly 100 may further include a Carter spring 134 disposed within the internal passage 122 of the intermediate body 104, wherein the Carter spring 134 is located axially rearward of the brush-shaped baffle 126. The Carter spring 134 is positioned in the intermediate body 104 such that a portion of the Carter spring 134 rests against an inner surface step geometry 136 of the internal passage 122 of the intermediate body 104. The Carter spring 134 is an annular grounding spring such that when the Carter spring 134 is pressed against the inner surface step geometry 136, the Carter spring 134 engages and surrounds the cable armor 112 to form a ground connection. In addition, the Carter spring 134 may be configured to function as an armor stopper that limits the insertion of the cable armor 112 of the cable 110 into the cable connector assembly 100 by stripping the cable armor 112 back to expose the inner cable 162. The Carter spring 134 may be formed of a metal, such as stainless steel with a copper flash coating.

[0022] The cable joint assembly 100 may further include a washer 138 disposed axially rearward of the Carter spring 134 and a bushing 140 disposed axially rearward of the washer 138, such that the washer 138 is disposed between the Carter spring 134 and the bushing 140. When the cable joint assembly 100 is assembled, the washer 138 distributes the load applied by the bushing 140 and the joint nut 106. The washer 138 may be formed of plastic, such as polyamide. The bushing 140 is positioned in the middle body 104 so that a portion of the bushing 140 extends outward from the second end 104B of the middle body 104, whereby the outwardly extending portion of the bushing 140 is disposed in the joint nut 106.

[0023] The bushing 140 may include a bushing body 142 having a generally annular shape, the inner surface of which defines a bushing opening 146 extending through the first and second ends of the bushing body. Circumferential ribs 144 are disposed on the inner surface of the bushing body. The circumferential ribs 144 extend around the axis A and extend radially inward from the inner surface toward the axis A. In the illustrated embodiment, the circumferential ribs 144 are continuous rings extending along the inner surface. The circumferential ribs 144 may be disposed in a median plane that extends through the bushing body 142 transversely to the axis A at a generally intermediate position between the first and second ends of the bushing body 142. The circumferential ribs 144 may be disposed at other locations along the axis A of the bushing body 142. The ribs 144 have a suitable cross-sectional shape for engaging and sealing around the cable 110 received in the cable connector assembly 100.

[0024] The joint nut 106 includes a first end 106A and a second end 106B opposite the first end 106A. The joint nut 106 further includes an internal passage extending through the first end 106A and the second end 106B of the joint nut 106 along the axis A. When the cable connector assembly 100 is assembled, the internal passage 122 of the intermediate body 104 and the internal passage of the joint nut 106 are in fluid communication with each other. The joint nut 106 is configured to snap fit to the threaded engagement portion 120 of the intermediate body 104 to secure the cable 110 in the cable connector assembly 100. The first end 106A of the joint nut 106 includes a plurality of elongated openings 146 extending axially from the first end 106A of the joint nut 106. The elongated openings 146 define a plurality of circumferentially spaced apart fingers 148 extending axially from the second end 106B of the joint nut 106. Each finger 148 includes an internal thread corresponding to the thread of the engagement portion 120 of the intermediate body 104. The fingers 148 are configured to elastically deform and snap fit onto the threaded engagement portion 120 of the intermediate body 104. When the internal threads of the fingers 148 engage the threaded engagement portion 120 of the intermediate body 104, the fingers 148 are pushed radially outward at the apex of the threaded engagement portion 120 and snap back radially inward to secure the internal threads 150 in the recess of the threaded engagement portion 120 of the intermediate body 140. The second end 106B of the joint nut 106 includes a shoulder 152. The joint nut 106 includes or is formed of a polymer material.

[0025] The union nut 108 includes a first end 108A and a second end 108B opposite the first end 108A. The union nut 108 further includes an internal passage extending through the first end 108A and the second end 108B of the union nut 108. The first end 108A of the union nut 108 includes an opening, the size of which is designed to receive and surround the joint nut 106, so that the joint nut 106 is disposed in the internal passage of the union nut. The first end 108A of the union nut 108 further includes an internal union thread 154. The internal union thread 154 is disposed along the inner surface of the union nut 108. The size of the union nut 108 is designed so that the internal union thread 154 engages and threadably cooperates with the external thread 116 of the second end 102B of the hub body 102. The second end 108B of the union nut 108 includes a shoulder 156, so that the opening at the first end 108A is wider than the opening at the second end 108B. When the cable connector assembly 100 is assembled, the internal passage of the connector nut 106 and the internal passage of the union nut 108 are in fluid communication with each other. Furthermore, in the assembled configuration, the outer surface of the connector nut shoulder 152 abuts against the inner surface of the union nut shoulder 156. The engagement between the connector nut shoulder 152 and the union nut shoulder 156 is configured such that when the union nut 108 is twisted on the hub body 102, the union nut shoulder 156 pushes the connector nut 106 axially along the axis A. This pushing causes the connector nut 106 to move axially along the intermediate body 104, causing the internal threads 150 of the fingers 148 to push against the threaded engagement portion 120 of the intermediate body 104, whereby the fingers 148 are elastically deformed and snap-fit ​​onto the threaded engagement portion 120.

[0026] After the union nut fingers 148 engage the threaded engagement features 120 of the intermediate body 104, the union nut 106 is configured to remain coupled to the intermediate body 104 even when the union nut 108 is disengaged from the hub body 102. As described above, the intermediate body 104 secures a portion of the cable 100 in the internal passage 122 of the intermediate body 104 by compressing the cable 100 in the Carter spring 134 and the bushing 140. Therefore, as long as the union nut fingers 148 are engaged on the threaded engagement features 120 of the intermediate body 104, the Carter spring 134 and the bushing 140 remain in a compressed state, so that a portion of the cable 100 is secured. This allows the disengagement of the union nut 108 from the cable connector assembly 100 without affecting the securing of the cable 100.

[0027] After the union nut 108 is disengaged from the hub body 102, the intermediate body 104 can be removed from the hub body 102. After the intermediate body 104 is removed from the hub body 102, an operator can apply the composite sealant 158 ​​or check the previously applied composite sealant in the internal passage 160 at the first end 104A of the intermediate body 104. Since the intermediate body 104 is received in the hub body 102 without fasteners or threads, the operator only needs to loosen the union nut 108 to remove the intermediate body 104 to apply the composite sealant 158 ​​or check the previously applied sealant.

[0028] The cable joint assembly can be installed on the relevant structure by the following method, the method comprising a first step: passing the cable through the internal passage of the hub body, the intermediate body, the joint nut and the union nut. The method further comprises a second step: coupling the hub body to the structure. The method further comprises a third step: inserting the intermediate body into the internal passage of the hub body. The method further comprises a fourth step: inserting the joint nut into the internal passage of the union nut so that the joint nut shoulder abuts against the union nut shoulder. The method further comprises a fifth step: twisting the union nut to thread the union nut to the hub body, thereby pushing the joint nut to snap fit to the threaded engagement portion of the intermediate body to fix the cable in the cable joint. The method further comprises a sixth step: unscrewing the union nut from the hub body. The method further comprises a seventh step: removing the snap-fit ​​engaged intermediate body and joint nut from the hub body, wherein the cable is fixed in the intermediate body and joint nut without the union nut. The method further comprises an eighth step: applying a sealant in the internal passage of the intermediate body at the first end of the intermediate body. The method further comprises a ninth step: curing the sealant. The method further includes a tenth step of reinserting the snap-fitted intermediate body and the joint nut into the internal passage of the hub body. The method further includes an eleventh step of twisting the union nut to threadably couple the union nut to the hub body to secure the snap-fitted intermediate body and the joint nut in the internal passage of the hub body.

[0029] To the extent that the term "includes" or "including" is used in this specification or claims, it is intended to be inclusive in a manner similar to the term "comprising," as explained when the term is employed as a transitional word in a claim. Furthermore, to the extent that the term "or" is used (e.g., A or B), it is intended to mean "A or B or both." When applicants intend to indicate "only A or B but not both," then the term "only A or B but not both" will be employed. Thus, the term "or" as used herein is inclusive, not exclusive. See Bryan A. Garner, Dictionary of Contemporary Legal Usage 624 (2d 1995). Furthermore, to the extent that the term "in" or "into" is used in this specification or claims, it also means "on" or "onto." Furthermore, the term "connected" as used in the specification or claims means not only "directly connected to," but also "indirectly connected to," such as connected through another component or components.

[0030] Although the present application has been illustrated by the description of its embodiments, and the embodiments have been described in considerable detail, the applicant does not intend to limit or in any way restrict the scope of the appended claims to these details. Other advantages and modifications will readily occur to those skilled in the art. Therefore, the present application in its broader aspects is not limited to the specific details, representative devices and methods, and illustrative examples shown and described. Therefore, departures from these details may be made without departing from the spirit or scope of the applicant's overall inventive concept.

Claims

1. A cable connector assembly, comprising: a hub body having a first end configured to be threadedly coupled to a structure and a second end opposite the first end, wherein an exterior portion of the second end of the hub body is threaded, the hub body defining an interior passage; an intermediate body having an integral composite chamber defining an interior passage, wherein the hub body receives the intermediate body, the intermediate body having a first end and a second end opposite the first end, wherein the second end of the intermediate body includes a threaded engagement portion extending outwardly beyond the second end of the hub body; a fitting nut having a first end and an opposing second end, the first end of the fitting nut snap-fitting into the threaded engagement portion of the intermediate body to secure the cable in the cable connector assembly, the fitting nut defining an internal passageway in fluid communication with the internal passageway of the intermediate body; and A union nut having a first end and a second end opposite to the first end, wherein the first end of the union nut is threadedly connected to the second end of the hub body, the second end of the union nut has a shoulder, and the union nut defines an internal passage so that the internal passage of the union nut is fluidically connected to the internal passage of the joint nut and the internal passage of the intermediate body, wherein the joint nut is assembled in the internal passage of the union nut.

2. The cable connector assembly according to claim 1, wherein: The first end of the union nut includes a plurality of elongated openings extending axially therefrom, the plurality of elongated openings defining a plurality of circumferentially spaced apart fingers, and the second end of the union nut includes a shoulder.

3. The cable connector assembly according to claim 2, wherein: The circumferentially spaced apart fingers include internal threads that snap fit into the threaded engagement portion of the intermediate body.

4. The cable connector assembly according to claim 3, wherein: The fingers are elastically deformed on the threaded engagement portion of the second end of the intermediate body.

5. The cable connector assembly according to claim 4, wherein: The shoulder of the union nut abuts against the shoulder of the union nut.

6. The cable connector assembly according to claim 5, wherein: The union nut is twisted onto the hub body so that the shoulder of the union nut engages with the shoulder of the fitting nut, thereby pushing the fitting nut axially toward the intermediate body so that the internal threads of the fingers snap fit over the threaded engagement portion of the intermediate body.

7. The cable connector assembly of claim 1, further comprising a bushing disposed within the intermediate body and disposed within the connector nut.

8. The cable connector assembly of claim 1, further comprising a gasket disposed within the intermediate body.

9. The cable connector assembly of claim 1, further comprising a Carter spring disposed within the intermediate body.

10. The cable connector assembly according to claim 1, wherein: The intermediate body includes a compound chamber for receiving a sealant.

11. The cable connector assembly according to claim 10, wherein: The intermediate body further includes a brush baffle that allows the cable to pass through the internal passage of the intermediate body while retaining the sealant within the composite chamber.

12. The cable joint assembly of claim 1, further comprising a flame path disposed between the hub body and the intermediate body.

13. The cable connector assembly according to claim 12, wherein: The flame path allows hot gases to dissipate from the structure.

14. The cable connector assembly according to claim 13, wherein: The flame path allows the hot gases to cool as they travel along the flame path.

15. The cable connector assembly according to claim 1, wherein: When the union nut is released from the hub body, the union nut secures the cable within the internal passage of the union nut and the internal passage of the intermediate body.

16. A cable connector assembly, comprising: a hub body configured to receive at least a portion of the cable; an intermediate body configured to receive at least a portion of the cable, the intermediate body having an intermediate body first portion disposed within the hub body and an intermediate body second portion extending outside the hub body, the intermediate body second portion having a threaded outer wall; a fitting nut configured to receive at least a portion of the cable, the fitting nut having a first end and a second end, the first end of the fitting nut having a plurality of elongated openings extending axially from the first end of the fitting nut, wherein the plurality of elongated openings define a plurality of circumferentially spaced apart fingers having threaded inner walls that engage the threaded outer wall of the second portion of the intermediate body, and the second end of the fitting nut having a shoulder; and A union nut configured to receive at least a portion of the cable, the union nut having a first end and a second end, the first end of the union nut receiving the coupling nut and threading the union nut to the hub body, the second end of the union nut having a shoulder, when the union nut is twisted onto the hub body, the shoulder of the union nut applies an axial force to the coupling nut, wherein the axial force pushes the coupling nut toward the intermediate body so that the coupling nut engages with the threaded outer wall of the second portion of the intermediate body.

17. The cable connector assembly according to claim 16, wherein: The joint nut is engaged with the threaded outer wall of the second portion of the intermediate body in a snap-fit ​​manner.

18. The cable connector assembly according to claim 16, wherein: The finger is configured to elastically deform on the threaded outer wall of the intermediate body second portion.

19. The cable connector assembly according to claim 16, wherein: The fitting nut comprises a polymer material.

20. A method for installing a cable connector assembly, comprising: The cable connector assembly is provided, and the cable connector assembly comprises: a hub body having a first end configured to be threadedly coupled to a structure and a second end opposite the first end, wherein an exterior portion of the second end of the hub body is threaded, the hub body defining an interior passage; an intermediate body defining an internal passage, wherein the hub body receives the intermediate body, the intermediate body having a first end and a second end opposite the first end, wherein the second end of the intermediate body includes a threaded engagement portion extending outwardly beyond the second end of the hub body; a fitting nut having a first end and an opposing second end, the first end of the fitting nut snap-fitting into the threaded engagement portion of the intermediate body to secure a cable in the cable fitting assembly, the fitting nut defining an internal passage such that the internal passage of the fitting nut is in fluid communication with the internal passage of the intermediate body; and a union nut having a first end and a second end opposite the first end, the first end of the union nut being threadedly coupled to the second end of the hub body, the second end of the union nut having a shoulder, the union nut defining an internal passage, the internal passage of the union nut being in fluid communication with the internal passage of the fitting nut and the internal passage of the intermediate body, wherein the fitting nut is configured to fit within the internal passage of the union nut; Passing the cable through the interior passage of the hub body, the interior passage of the intermediate body, the interior passage of the fitting nut, and the interior passage of the union nut; coupling the hub body to the structure; inserting the intermediate body into the interior passage of the hub body; inserting the union nut into the interior passage of the union nut so that the shoulder of the union nut abuts against the shoulder of the union nut; twisting the union nut to threadably couple the union nut to the hub body, thereby pushing the union nut to snap-fit ​​into the threaded engagement portion of the intermediate body to secure the cable in the cable connector assembly; unscrewing the union nut from the hub body; removing the intermediate body and the union nut engaged in a snap-fit ​​manner from the hub body, wherein the cable is secured within the intermediate body and the union nut without the union nut; applying a sealant in the interior passage of the intermediate body at the first end of the intermediate body; curing the sealant; reinserting the snap-fit ​​engaged intermediate body and union nut into the interior passage of the hub body; and The union nut is twisted to threadably couple the union nut to the hub body to secure the intermediate body and the union nut in a snap-fit ​​engagement in the interior passage of the hub body.

Images