0361TQ - Flexible Welding Cable

Minimum bending radius : 6 x overall diameter

For current ratings see below.

Duty cycle : the duty cycle is defined as the time for which the current flows expressed as a percentage of the complete cycle, which is taken as 5 minutes.  Since the length of time for which current flows during welding operation varies from occasionally to continuous, the duty cycle can vary from as little as 20% to a maximum of 100% on automatic operation.  As conductor temperature varies according to time in use as well as current, the following ratings are given as a guide:

• Automatic welding : up to 100%
• Semi-automatic welding : 30 - 85%
• Manual welding : 30 - 60%
• Very intermittent or occasional welding : Up to 20%

Ambient temperatures : cable operating temperature also varies according to the prevailing ambient temperature.  EPR / CSP cables are designed to give optimum performance up to an operating temperature of 85oC at an ambient temperature of 25oC.  The reduction factors for increased ambient temperatures are:
 

Ambient Temperature	30oC	35oC	40oC	45oC
Reduction Factor	0.96	0.91	0.87	0.82

Operations under severe conditions : High operating temperatures or prolonged maximum loading of the cable reduce the service life or makes the cable too hot to handle.  Thus under conditions where a long service life cannot be expected or where a high surface temperature is tolerable, the current rating for 25^oC may be applied up to an ambient temperature of 40^oC.
 

Size Sq. MM	Stranding MM	Diameter over Conductor MM	RT of insulation MM	Diameter over core MM	RT of Sheath MM	Nominal overall diameter MM	0361TQ weight copper conductor KG / KM	0361TQ / AL weight aluminium conductor KG / KM
16	Class 6 -	5.7	0.9	7.5	1.7	10.9	212	-
25	Class 6 154 / 0.45	7.1	0.9	8.9	1.8	12.5	300	146
35	Class 6 217 / 0.45	8.5	0.9	10.3	1.8	14.0	403	189
50	Class 6 312 / 0.45	10.3	0.9	12.1	1.9	16.0	560	250
70	Class 6 437 / 0.45	12.4	1.0	14.5	2.0	18.6	776	349
95	Class 6 589 / 0.45	14.5	1.0	16.6	2.2	21.2	1035	455
120	Class 6 756 / 0.45	16.0	1.0	18.1	2.4	23.1	1300	564
150	Class 6 925 / 0.45	18.0	1.1	20.3	2.5	25.5	-	683
185	Class 6 -	20.0	1.2	22.5	2.6	27.9	1944	-
240	-  1525 / 0.45	23.0	1.3	25.7	2.8	31.5	-	1064

Current Ratings

Typical guidance values for different welding processes are as follows:

• Fully automatic welding 100%
• Semi-automatic welding 65 - 85%
• Manual Welding 30 - 60%
• Very infrequent or occasional welding 20%

Correction Factors

Conductor Resistance (ohms per kilometre) and Voltage Drop

*Note:
The values for AC Current may be much higher, depending on the configuration of the cables.