JPS5823184A - How to connect the cable - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for connecting a large conductor cable having an insulating layer on the conductor.

A conventional method for connecting a large conductor cable having an insulating layer on the conductor will be described with reference to FIGS. 1 and 2. FIG. 1 is an explanatory diagram of a conventional method of attaching a connecting sleeve, and FIG. 2 shows an example in which conductors are connected by the conventional method and insulation reinforcement is applied to the connecting portion. 1 and 1' are insulating layers on the cable conductors, 2 and 2' are the cable conductors, and 6 is a sleeve for connecting the cable conductors.

4.4' is an insulating tape for filling in the valleys at the end of the sleeve, and 5 is an insulating reinforcing tape for the conductor connection portion.

Conventionally, the sleeve was generally installed by stripping off the insulating layers 1, 1' at the ends of the left and right cables by +σ a little longer than the length A of the sleeve 6, and attaching the sleeve to one cable conductor, as shown in Figure 3. and insert the other cable conductor into the sleeve by letting the cable escape to the left and right as shown by the arrow.
After insertion, the left and right cables are brought together toward the center, and the sleeve is installed in its proper position.

In the case of a large conductor cable where the rigidity of the cable 7'/l/ is so high that it is impossible to run the cable from side to side or pull it toward the center, the insulating layer 1 should be placed on the sleeve B as shown in Figure 1. Strip off the length L slightly longer than A by +d, but strip off the insulating layer 1' to the same length as the sleeve length.
After inserting the sleeve, a method has been adopted in which the left and right conductors 2 are butted against each other and the sleeve 3 is moved to its normal position.

However, in the above method, it takes time to strip off the insulating layer 1' side because the stripping length is longer than that on the insulating layer 1 side. Further, as shown in FIG. 2, since the exposed length of the conductor 2 is longer than the exposed length of the conductor 2, an extra insulating tape 4' is required to fill in the valleys at the end of the sleeve, and it takes time to wind the tape. Furthermore, an extra insulating reinforcing tape 5 is required due to the longer exposed length of the conductor, and there are problems such as not only is it time consuming to wind the tape, but also the length of the connecting portion becomes longer.

The present invention has been made to solve the above-mentioned problems, and provides a new cable connection method that reduces the size of the conductor connection portion and saves labor in the connection work.

The present invention will be explained using FIGS. 4 and 5.

FIG. 4 is an explanatory diagram of a method of attaching a conductor connection sleeve according to the present invention, and FIG. 5 is a diagram showing an example of connecting conductors and reinforcing the connection portion with insulation according to the present invention.

1. 1' is the insulation layer on the cable conductor; 2 and 2' are the cable conductors; 60 is the longitudinally divided internal sleeve whose outer diameter is the same as or larger than the cable insulation layer; 40 is the inner diameter outside the cable insulation layer; outer sleeve larger than the diameter, 50
, 50 is an insulating tape filling the valley at the end of the sleeve, and 60 is an insulating reinforcing tape for the conductor connection portion.

To attach the sleeve, strip off the left and right cable end insulating layers to a length slightly longer than the length ′/λ of the vertically split H sub-sleeve 30, and insert the outer sleeve 40 onto either the left or right cable insulating layer 1 or 1. (On the insulating layer 1' in FIG. 4). The exposed left and right conductors 2' and 2 are butted together, the vertically split sleeve 60 is placed over the conductors in the proper position, and the outer sleeve 40 that was previously inserted onto the cable insulation layer 1' is placed over the inner sleeve 60. , compress the outside.

The above is the cable connection method of the present invention, and its advantages are as follows: (1) Since the length required for conductor connection is shorter than that of the conventional method, the connection length can be shortened.

(2) There is less need to strip the cable insulation layer, wrap insulating tape to fill in the valleys at the ends of the sleeve, and wrap insulating reinforcing tape around conductor connections, reducing work time.

Labor savings can be achieved.

(3) Since the exposed portion of the conductor is short, less insulating material is required than conventional ones.

etc.

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram of the conventional method of attaching a connecting sleeve for a large conductor cable, Figure 2 is an explanatory diagram of connecting conductors using the conventional method and insulation reinforcement is applied to the connection part, and Figure 3 is an explanatory diagram of the conventional method of attaching a connecting sleeve to a large conductor cable. An explanatory diagram of installing the sleeve. FIG. 4 is an explanatory diagram of a method for attaching a conductor connection sleeve according to the present invention, and FIG. 5 is an explanatory diagram of an embodiment in which conductors are connected and the connection portion is reinforced with insulation according to the present invention. 1.1'...Insulating layer on the f-j conductor, 2,2'...
...Cable conductor, 6...Sleeve for connecting conductor, 4
, 4'... Insulating tape with valleys filled at the ends of the sleeve, 5... Insulating reinforcing tape at the conductor connection part, 30... Vertically divided inner sleeve, 40... External sleeve, 50.50... Valleys filled at the ends of the sleeve. Insulating tape, 60.・Conductor connection insulation reinforcing tape, L... Length of sleeve O.

Claims (1)

[Claims] 1. Divide the conductor connection sleeve into two parts, the inner sleeve and the outer sleeve, divide the inner sleeve vertically into two or more halves, place them on the conductor connection part, insert the outer sleeve, and then connect by compression from the outside. Characteristic cable connection method.