One aspect of the invention provides a system including: a length of energy-dissipative tubing; a first sealing device coupled to a first end of the length of energy-dissipative tubing; and a second sealing device coupled to a second end of the length of energy-dissipative tubing. Exposure to one or more selected from the group consisting of: fault currents or lightning strikes at an exposure point along the length of energy-dissipative tubing will produce arcs at the exposure point and at least one of the first end and the second end.

One aspect of the invention provides a system including: a length of energy-dissipative tubing; a first sealing device coupled to a first end of the length of energy-dissipative tubing; and a second sealing device coupled to a second end of the length of energy-dissipative tubing. Exposure to one or more selected from the group consisting of: fault currents or lightning strikes at an exposure point along the length of energy-dissipative tubing will produce arcs at the exposure point and at least one of the first end and the second end.

An operator is enabled to easily identify the normal attachment direction of a ground clip and set the ground clip in a correct direction.

Provided is a hose attachment structure in which a ground clip is attached over a grounded electroconductive pipe and a flexible hose inserted onto an outer face of the electroconductive pipe, wherein the ground clip includes a coil part that is attached to the outer face of the electroconductive pipe and an outer peripheral surface of the flexible hose and a pair of pinch parts that protrudes from both end parts in an axial direction of the coil part and faces each other, and one pinch part among the pair of pinch parts has an asymmetrically-shaped indicator part having directivity in the axial direction of the coil part.

An operator is enabled to easily identify the normal attachment direction of a ground clip and set the ground clip in a correct direction.

Provided is a hose attachment structure in which a ground clip is attached over a grounded electroconductive pipe and a flexible hose inserted onto an outer face of the electroconductive pipe, wherein the ground clip includes a coil part that is attached to the outer face of the electroconductive pipe and an outer peripheral surface of the flexible hose and a pair of pinch parts that protrudes from both end parts in an axial direction of the coil part and faces each other, and one pinch part among the pair of pinch parts has an asymmetrically-shaped indicator part having directivity in the axial direction of the coil part.

Disclosed herein is a polyvinyl chloride (PVC) hose with a leak notification function. The PVC hose includes: an inner layer configured such that a fluid is transferred through a hollow; a reinforcing yarn layer wound around the inner layer, and configured to increase the pressure of the inner layer and restrain expansion; an intermediate layer formed through coating around the reinforcing yarn layer; a first electrode layer formed through coating around the intermediate layer, and provided with a first terminal; a partition layer formed through coating around the first electrode layer; a second electrode layer formed through coating around the partition layer, and provided with a second terminal; a high-density woven yarn layer processed around the second electrode layer; an outer coating layer formed through coating around the high-density woven yarn layer; and a leak detection device configured to determine whether there is a leak depending on whether current is conducted.

A tube includes a corrugated metal tubular member; and a first covering part that covers the outside of the tubular member, and forms a braided structure using a resin string member of which at least a part is covered by a metal having lower electrical resistance than that of a metal forming the tubular member. The tube can also include a third covering part made of an insulating resin arranged between the tubular member and the first covering part, and covers the tubular member, wherein the first covering part covers the third covering part.

A multilayer tube is provided which includes a layer including a specific aliphatic polyamide composition and a layer including a semi-aromatic polyamide composition including a semi-aromatic polyamide with a specific structure, these layers being adjacent to each other, wherein the aliphatic polyamide composition includes an aliphatic polyamide having a specific ratio of the number of methylene groups to the number of amide groups, a polyamide having a specific difference in absolute value of solubility parameter SP from the aliphatic polyamide, and an elastomer polymer including a structural unit derived from an unsaturated compound having a carboxyl group and/or an acid anhydride group.

A multilayer tube is provided which includes a layer including a specific aliphatic polyamide composition and a layer including a semi-aromatic polyamide composition including a semi-aromatic polyamide with a specific structure, these layers being adjacent to each other, wherein the aliphatic polyamide composition includes an aliphatic polyamide having a specific ratio of the number of methylene groups to the number of amide groups, a polyamide having a specific difference in absolute value of solubility parameter SP from the aliphatic polyamide, and an elastomer polymer including a structural unit derived from an unsaturated compound having a carboxyl group and/or an acid anhydride group.

A system configured to detect failure of a hose includes a sensor assembly having a body with a first arm and a second arm pivotally coupled to one another at respective first ends, and the body is configured to move between a closed position and an open position. The sensor assembly also includes a first electrical contact positioned at a respective second end of the first arm and a second electrical contact position at a respective second end of the second arm. The first electrical contact and the second electrical contact are configured to contact one another to form a complete electrical circuit when the body is in the closed position and are configured to be separated from one another to form an open electrical circuit when the body is in the open position to facilitate detection of the failure of the hose.

A system configured to detect failure of a hose includes a sensor assembly having a body with a first arm and a second arm pivotally coupled to one another at respective first ends, and the body is configured to move between a closed position and an open position. The sensor assembly also includes a first electrical contact positioned at a respective second end of the first arm and a second electrical contact position at a respective second end of the second arm. The first electrical contact and the second electrical contact are configured to contact one another to form a complete electrical circuit when the body is in the closed position and are configured to be separated from one another to form an open electrical circuit when the body is in the open position to facilitate detection of the failure of the hose.