Medium Voltage Cable. marmonutility.com

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1 Medium Voltage marmonutility.com

Table Contents Introduction... 2 Hendrix Product Information... 4 Distribution s (URD) 15kV...6 25kV... 10 35kV...12 28kV...14 Electrical Data...16 Kerite Product Information.

2 Table Contents Introduction... 2 Hendrix Product Information... 4 Distribution s (URD) 15kV kV kV kV...14 Electrical Data...16 Kerite Product Information Distribution s (URD) 15kV kV kV...26 URD Ampacities...28 Power s 5kV kV kV kV...32 Compact Power 15kV, 25kV, 35kV kV Ampacities Ampacity Calculation Notes marmonutility.com 1

Hendrix Wire & manufactures TRXLPE-insulated, medium voltage cables, rated 15kV to 35kV in the Milford, NH location.

3 Introduction Hendrix-Kerite Power Hendrix-Kerite Power supplies medium-voltage, primary cable to the electric utility market. The Power business unit markets through two highly respected industryrecognized brands. Hendrix Wire & manufactures TRXLPE-insulated, medium voltage cables, rated 15kV to 35kV in the Milford, NH location. The Kerite Company manufactures specialized, EPR insulated, medium voltage cables, rated 5kV to 35kV and PILC replacement cable in the Seymour, CT location. Hendrix-Kerite Power is part Marmon Utility LLC. Marmon Utility LLC is comprised six separate business units that serve the electric utility, contractor and petroleum markets: Hendrix-Kerite Power Hendrix Aerial Systems Hendrix Molded Products Kerite Services Kerite High Voltage and Specialty Kerite Pump Marmon Utility LLC is part the Marmon Engineered Wire & Division. This division is just one many business segments The Marmon Group. The Marmon Group is an international association manufacturing and service companies that operate independently. It is made up 11 diverse stand-alone business sectors. These business sectors operate approximately 300 manufacturing, distribution and service facilities. The Marmon Group employs more than 17,000 employees world-wide. In 2008, The Marmon Group was acquired by Berkshire Hathaway. Berkshire Hathaway is one the largest holding companies in the world, employing over 270,000 people in a wide array businesses globally. Berkshire has significant involvement in industries such as; insurance, railroad and tank cars, retail sales, home construction, furniture, petrochemicals, utilities, water treatment, wire & cable. Berkshire provides capital, legal and tax services to The Marmon Group and its other companies. When you need it now... Prospector Kerite EPR and Hendrix TR-XLPE URD Inventory - Prospector (CPX) gives you 24/7 access to Marmon Utility LLC's (Hendrix and Kerite) on hand available inventory MV Underground & Aerial (head) Power Distribution. All manufactured to ICEA and original utility customer specifications, available for immediate shipment anywhere in the USA. Hendrix Wire & has manufactured electrical cable products for the utility industry since The first products produced by Hendrix were patented overhead spacers and polymer insulators. Since 1967, Hendrix has manufactured medium-voltage, underground cable. Hendrix is a leader in promoting electrical test requirements in the industry and in other quality advancements such as clean room technology. It has built a reputation for high quality cable, short, consistent leadtimes and responsive customer service. Hendrix underground cable is produced in a 250,000 sq. feet plant located in Milford, NH. Hendrix is vertically integrated to fabricate bare aluminum and copper conductor used in the manufacture utility cables. True-triple, gas-cure, primary extrusion lines are fully supported by neutral and jacket machines. Electrical and physical test facilities perform all standard industry tests. In addition, an analysis lab handles qualification testing, compound development, and failure analysis for customers. The Kerite Company manufactures aluminum and copper conductor cables with EPR insulation. It has manufactured underground distribution cables since 1926 and subsea cable since the late 1800s. Like Hendrix, Kerite produces cables for the electric utility market. The underground products range from 5kV through 138kV. Kerite utilizes a proprietary cable design for its utility cable. The basic design is a unique discharge-resistant insulation system that is field proven and has the longest warranty in the industry. Both Hendrix and Kerite market cable through a national network manufacturers representatives. 2 3

4 Hendrix Distribution Hendrix distribution cable comes in voltages ranging from 15kV thru 35kV for use in underground residential distribution applications. Marmon Utility, LLC 53 Old Wilton Road Milford, NH marmonutility.com - Stranded - Filled Aluminum - Solid - Stranded - Filled System 100% Level - TRXLPE 133% Level - TRXLPE ing s - Bare -, or Custom Design Polyethylene (PE) Markings - Marker Stripes - Sequential Footage - Phase Identification - NESC Direct Identifier 4 5

5 Hendrix URD 15kV Semi-Conducting Layer TRXLPE Semi-Conducting EzStrip Layer One-third and Non-Conducting Polyethylene (LLDPE) with 3 15kV Aluminum 90 C (100%.175") Semi-Conducting Layer TRXLPE Semi-Conducting EzStrip Layer One-third and Non-Conducting Polyethylene (LLDPE) with 3 15kV 90 C (100%.175") Hendrix URD 15kV Diameter * (per ANSI/ICEA S ) s Diameter * (per ANSI/ICEA S ) s Aluminum AWG Min. Max. Total Without Total With AWG Min. Max. Total Without Total With 2 SOLID SOLID /0 SOLID / / / / / / / / / / / /0 SOLID / / / / / *Meets CSA C68.5 requirements *Meets CSA C68.5 requirements 6 7

6 Hendrix URD 15kV Semi-Conducting Layer TRXLPE Semi-Conducting EzStrip Layer One-third and Non-Conducting Polyethylene (LLDPE) with 3 15kV Aluminum 90 C (133%.220") Semi-Conducting Layer TRXLPE Semi-Conducting EzStrip Layer One-third and Non-Conducting Polyethylene (LLDPE) with 3 15kV 90 C (133%.220") Hendrix URD 15kV Diameter* (per ANSI/ICEA S ) s Diameter* (per ANSI/ICEA S ) s Aluminum AWG Min. Max. Total Without Total With AWG Min. Max. Total Without Total With 2 SOLID SOLID /0 SOLID / / / / / / / / / / / /0 SOLID / / / / / *Meets CSA C68.5 requirements *Meets CSA C68.5 requirements 8 9

7 Semi-Conducting Layer TRXLPE Semi-Conducting EzStrip Layer One-third and Non-Conducting Polyethylene (LLDPE) with 3 25kV Aluminum 90 C (100%.260") Semi-Conducting Layer TRXLPE Semi-Conducting EzStrip Layer One-third and Non-Conducting Polyethylene (LLDPE) with 3 25kV 90 C (100%.260") Hendrix URD 25kV Aluminum AWG Min. Diameter* (per ANSI/ICEA S ) Max. s Total Without Total With AWG Min. Diameter* (per ANSI/ICEA S ) Max. s Total Without Total With Hendrix URD 25kV 1 SOLID /0 SOLID / / / / / / / / / / /0 SOLID / / / / / / *Meets CSA C68.5 requirements *Meets CSA C68.5 requirements 10 11

8 Semi-Conducting Layer TRXLPE Semi-Conducting EzStrip Layer One-third and Non-Conducting Polyethylene (LLDPE) with 3 35kV Aluminum 90 C (100%.345") Semi-Conducting Layer TRXLPE Semi-Conducting EzStrip Layer One-third and Non-Conducting Polyethylene (LLDPE) with 3 35kV 90 C (100%.345") Diameter* (per ANSI/ICEA S ) s Diameter* (per ANSI/ICEA S ) s Aluminum AWG Min. Max. Total Without Total With AWG Min. Max. Total Without Total With 1/0 SOLID / Hendrix URD 35kV 1/ / / / /0 SOLID / / / / / / / / / / / Hendrix URD 35kV *Meets CSA C68.5 requirements *Meets CSA C68.5 requirements 12 13

9 Canadian Customers Canadian Customers Compact Aluminum Semiconducting Layer TRXLPE Semiconducting Layer and Nonconducting Polyethylene (LLDPE) with 3 Red Stripes, Semiconducting Available 28kV Aluminum 90 C (100%.280 in.) Compressed Aluminum Semiconducting Layer TRXLPE Semiconducting EzStrip Layer and Nonconducting Polyethylene (LLDPE) with 3 Red Stripes, Semiconducting Available 28kV Aluminum 90 C (100%.280 in.) Diameter (mm/in) (per CSA C68.5 Appendix C) Diameter (mm/in) (per CSA C68.5 Appendix C) Aluminum AWG Min. over Max. over Total with Aluminum AWG Min. over Max. over Total with 1/ (0.336) (0.890) (0.985) (1.225) / (0.362) (0.915) (1.010) (1.255) Compact 2/ / (0.376) (0.423) (0.930) (0.975) (1.025) (1.070) (1.300) (1.345) Compressed 2/ / (0.406) (0.456) (0.960) (1.010) (1.055) (1.105) (1.330) (1.380) / (0.475) (1.030) (1.120) (1.400) / (0.512) (1.065) (1.160) (1.435) / (0.336) (0.890) (0.985) (1.225) / (0.362) (0.915) (1.010) (1.255) / (0.376) (0.930) (1.025) (1.270) / (0.406) (0.960) (1.055) (1.295) Hendrix URD 28kV Compact 3/ / (0.423) (0.475) (0.520) (0.616) (0.736) (0.975) (1.030) (1.080) (1.180) (1.300) (1.070) (1.120) (1.175) (1.275) (1.395) (1.315) (1.365) (1.410) (1.540) (1.660) Compressed 3/ / (0.456) (0.512) (0.558) (0.661) (0.789) (1.010) (1.065) (1.120) (1.225) (1.350) (1.105) (1.160) (1.215) (1.320) (1.445) (1.345) (1.405) (1.450) (1.585) (1.775) Hendrix URD 28kV (0.908) (1.480) (1.575) (1.935) (0.968) (1.540) (1.635) (2.020) (1.060) (1.630) (1.725) (2.125) (1.117) (1.685) (1.785) (2.170)

10 Electrical Data.175" TRXLPE 15kV concentric neutral underground cable, 100% insulation thickness, compressed stranding and solid conductors. Electrical Data.220" TRXLPE 15kV concentric neutral underground cable, 133% insulation thickness, compressed stranding and solid conductors. Aluminum Resistance DC OHMS 90 C AWG Inductive Reactance OHMS per 1/C Direct Ampacity 20 C Ambient 100% LF, RHO-90 Aluminum Resistance DC OHMS 90 C AWG Inductive Reactance OHMS per 1/C Direct Ampacity 20 C Ambient 100% LF, RHO-90 2 SOLID SOLID SOLID SOLID /0 SOLID / /0 SOLID / / / / / / / OHMS to per 3/C Direct 8" Spacing 3/C Triplex in Duct 3/C Duct OHMS to per 3/C Direct 8" Spacing 3/C Triplex in Duct 3/C Duct 1/0 SOLID /0 SOLID / / / / / / / / Resistance DC OHMS 90 C AWG Inductive Reactance OHMS per 1/C Direct Ampacity 20 C Ambient 100% LF, RHO-90 Resistance DC OHMS 90 C AWG Inductive Reactance OHMS per 1/C Direct Ampacity 20 C Ambient 100% LF, RHO / / / / / / / / OHMS to per 3/C Direct 8" Spacing 3/C Triplex in Duct 3/C Duct OHMS to per 3/C Direct 8" Spacing 3/C Triplex in Duct 3/C Duct 1/ / Hendrix URD Electrical Data 2/ / / / / / Hendrix URD Electrical Data

11 Electrical Data.260" TRXLPE 25kV concentric neutral underground cable, 100% insulation thickness, compressed stranding and solid conductors. Electrical Data.345" TRXLPE 35kV concentric neutral underground cable, 100% insulation thickness, compressed stranding and solid conductors. Aluminum Resistance DC OHMS 90 C AWG Inductive Reactance OHMS per 1/C Direct Ampacity 20 C Ambient 100% LF, RHO-90 Aluminum Resistance DC OHMS 90 C AWG Inductive Reactance OHMS per 1/C Direct Ampacity 20 C Ambient 100% LF, RHO-90 1 SOLID /0 SOLID /0 SOLID / / / / OHMS to per 3/C Direct 8" Spacing 3/C Triplex in Duct 3/C Duct 1/0 SOLID / / / / / / / / OHMS to per 3/C Direct 8" Spacing 3/C Triplex in Duct 3/C Duct 1/0 SOLID / / / / Resistance DC OHMS 90 C AWG Inductive Reactance OHMS per 1/C Direct Ampacity 20 C Ambient 100% LF, RHO Resistance DC OHMS 90 C AWG Inductive Reactance OHMS per 1/C Direct Ampacity 20 C Ambient 100% LF, RHO-90 1/ / / Hendrix URD Electrical Data 1/ / / / OHMS to per 3/C Direct 8" Spacing 3/C Triplex in Duct 3/C Duct 1/ / / / / OHMS to per 3/C Direct 8" Spacing 3/C Triplex in Duct 3/C Duct 1/ / / / Hendrix URD Electrical Data

12 Kerite Distribution Kerite distribution cable comes in voltages ranging from 15kV thru 35kV for use in underground residential distribution applications. - Stranded - Filled Aluminum - Solid - Stranded - Filled System 100% Level with Permashield 133% Level with Single Permashield ing s - Bare - Round or Flat -, or Custom Design Polyethylene (PE) Markings - Marker Stripes - Sequential Footage - Phase Identification - NESC Direct Identifier Marmon Utility, LLC 49 Day Street Seymour, CT marmonutility.com Kerite Power Kerite power cable comes in medium voltages ranging from 5kV thru 35kV for distribution applications. - Stranded - Filled - Compact Aluminum - Solid - Stranded - Filled System 100% Level with Permashield 133% Level with Permashield ing Tape s - Round or Flat Polyvinyl Chloride (PVC) Polyethylene (PE) Polypropylene (PP) 20 21

13 Kerite URD 15kV Non-Conducting Permashield Discharge Resistant EPR Extruded Free Stripping Semi-Conducting Layer One-third or Non-Conducting Polyethylene (LLDPE) with 3 15kV Aluminum 90 C Non-Conducting Permashield Discharge Resistant EPR Extruded Free Stripping Semi-Conducting Layer One-third or Non-Conducting Polyethylene (LLDPE) with 3 15kV 90 C Kerite URD 15kV (AWG/) 175 mil (100%) 220 mil (133%) No. (No.-#AWG) 22 Min. Max. Min. Max. 2 SOL 6 - # # SOL 6 - # # /0 SOL 6 - # / # /0 SOL 7 - # / # / # # # # # # mil (100%) 220 mil (133%) 2 SOL 10 - # # SOL 13 - # # /0 SOL 16 - # / # /0 SOL 20 - # / # / # Five minute AC Final Test Voltages 175 mil Level: 35kV 220 mil Level: 44kV (AWG/) 175 mil (100%) 220 mil (133%) No. (No.-#AWG) 23 Min. Max. Min. Max # # / # / # / # # # # # # mil (100%) 220 mil (133%) # # / # / # / # Five minute AC Final Test Voltages 175 mil Level: 35kV 220 mil Level: 44kV

14 25kV Aluminum 90 C 25kV 90 C Non-Conducting Permashield Discharge Resistant EPR Extruded Free Stripping Semi-Conducting Layer One-third or Non-Conducting Polyethylene (LLDPE) with 3 Non-Conducting Permashield Discharge Resistant EPR Extruded Free Stripping Semi-Conducting Layer One-third or Non-Conducting Polyethylene (LLDPE) with 3 Kerite URD 25kV (AWG/) 260 mil (100%) 320 mil (133%) No. (No.-#AWG) Min. Max. Min. Max. 1 SOL 6 - # # /0 SOL 6 - # / # /0 SOL 7 - # / # / # # # # # # (AWG/) 260 mil (100%) 320 mil (133%) No. (No.-#AWG) Min. Max. Min. Max # / # / # / # # # # # # mil (100%) 320 mil (133%) # / # / # / # Kerite URD 25kV 260 mil (100%) 320 mil (133%) 1 SOL 13 - # # Five minute AC Final Test Voltages 260 mil Level: 52kV 320 mil Level: 64kV 1/0 SOL 16 - # / # /0 SOL 20 - # / # / # Five minute AC Final Test Voltages 260 mil Level: 52kV 320 mil Level: 64kV 24 25

15 35kV Aluminum 90 C 35kV 90 C Non-Conducting Permashield Discharge Resistant EPR Extruded Free Stripping Semi-Conducting Layer One-third or Non-Conducting Polyethylene (LLDPE) with 3 Non-Conducting Permashield Discharge Resistant EPR Extruded Free Stripping Semi-Conducting Layer One-third or Non-Conducting Polyethylene (LLDPE) with mil (100%) 420 mil (133%) 345 mil (100%) 420 mil (133%) (AWG/) No. (No.-#AWG) Min. Max. Min. Max. (AWG/) No. (No.-#AWG) Min. Max. Min. Max. Kerite URD 35kV 1/0 SOL 6 - # / # /0 SOL 7 - # / # / # # # # # # mil (100%) 420 mil (133%) 1/0 SOL 16 - # / # /0 SOL 20 - # / # / # / # / # / # # # # # # mil (100%) 420 mil (133%) 1/ # / # / # Five minute AC Final Test Voltages 345 mil Level: 69kV 420 mil Level: 84kV Kerite URD 35kV Five minute AC Final Test Voltages 345 mil Level: 69kV 420 mil Level: 84kV 26 27

16 Aluminum URD Ampacities (AWG/) 1/C Single Phase ( ) Direct Burial 3-1/C s Paralleled or Triplexed (1/3 ) Installation 1/C Single Phase ( ) Nonmetallic Conduit 3-1/C s Paralleled or Triplexed (1/3 ) 15kV 25kV 35kV 15kV 25kV 35kV 15kV 25kV 35kV 15kV 25kV 35kV / / / or Aluminum Non-Conducting Permashield Discharge Resistant EPR Extruded Free Stripping Semi-Conducting Layer ing 5 mil Tape Polyvinyl Chloride (PVC) Power s Type MV 105 5kV ed 105 C Rating ing Kerite Power 5kV Kerite URD Ampacities URD Ampacities (AWG/) 1/C Single Phase ( ) Direct Burial 3-1/C s Paralleled or Triplexed (1/3 ) Installation 1/C Single Phase ( ) Nonmetallic Conduit 3-1/C s Paralleled or Triplexed (1/3 ) 15kV 25kV 35kV 15kV 25kV 35kV 15kV 25kV 35kV 15kV 25kV 35kV / / / (AWG/) 115 mil (133%) Thickness (mils) / / / * For conductors larger than mils insulation is required. Five minute AC Final Test Voltages 115 mil Level: 23kV 140 mil Level: 28kV Ampacity assumptions: Earth Rho = 90 C-cm/Watt Earth Ambient Temperature = 20 C Direct Burial Maximum Surface Temperature = 45 C Load Factor = 75% Burial Depth = 36" Multi-Point Bonded 28 29

17 Power s Type MV kV ed 105 C Rating Power s Type MV kV ed 105 C Rating Kerite Power 15kV or Aluminum Non-Conducting Permashield Discharge Resistant EPR Extruded Free Stripping Semi-Conducting Layer ing 5 mil Tape Polyvinyl Chloride (PVC) (AWG/ () ing 175 mil (100%) 220 mil (133%) Thickness (mils) Thickness (mils) (lbs/kft) / / / or Aluminum Non-Conducting Permashield Discharge Resistant EPR Extruded Free Stripping Semi-Conducting Layer ing 5 mil Tape Polyvinyl Chloride (PVC) (AWG/ () ing 260 mil (100%) 320 mil (133%) Thickness (mils) Thickness (mils) / / / Kerite Power 25kV * For conductors larger than mils insulation is required. Five minute AC Final Test Voltages 175 mil Level: 35kV 220 mil Level: 44kV Five minute AC Final Test Voltages 260 mil Level: 52kV 320 mil Level: 64kV 30 31

18 or Aluminum Non-Conducting Permashield Discharge Resistant EPR Extruded Free Stripping Semi-Conducting Layer ing 5 mil Tape Polyvinyl Chloride (PVC) (AWG/ () Power s Type MV kV ed 105 C Rating ing 345 mil (100%) 420 mil (133%) Thickness (mils) Thickness (mils) 1/ / / Compact Non-Conducting Permashield Reduced Wall Discharge Resistant EPR Extruded Semi-Conducting Layer ing Flat Strap s Reduced Wall Polypropylene (PP) Replacing PILC cable with Kerite Compact Power cuts nearly 50% costs. These cables consist compact copper strand conductors (that provide an 8-10% diameter reduction over full round conductors), Kerite s exclusive Permashield and EPR insulation system extruded to exacting tolerances, flat strap concentric neutrals and a polypropylene jacket. During installation, Kerite cable terminates and splices faster than other solid dielectric cables for substantial savings compared to PILC lead wipes, splices and terminations. Like all Kerite cable, our PILC replacement cables fer excellent reliability and a proven track record. PILC s Lead and Oil Used in Manufacture Labor Intensive High Skill Level Required Materials (Lead Wipe, Lead Pot) Installation (Heavy Limit Pulls) Environmental Issues Compact Power s 15kV, 25kV, 35kV ed 105 C Rating For replacement Paper-Insulated Lead Covered (PILC) cables Summary Benefits PILC Kerite Compact Power s No Lead and No Oil Used Labor Savings Standard Lineperson Skills Required Materials (No Lead Sleeve Required) 30% Lighter s (Longer, Easier Pulls) Environmentally Friendly Materials Kerite Power 35kV Five minute AC Final Test Voltages 345 mil Level: 69kV 420 mil Level: 84kV 32 Voltage and System 15kV 140 mil 25kV 210 mil 35kV 278 mil () Flat Straps (No.-AWG) 33 1/C 3-1/C # # # # # # # # # # # # Kerite Compact Power

19 5-35kV Ampacities 5 35kV Aluminum s (AWG/ ) Underground in Ducts One Per Duct Direct 1 Circuit (Fig.1) 2 Circuits (Fig.2) 4 Circuits (Fig.3) 1 Circuit (Fig.4) 2 Circuits (Fig.5) Load Factor (%) Indoor Fig.6 Outdoor Fig / / / kV s (AWG/ ) Underground in Ducts One Per Duct Direct 1 Circuit (Fig.1) 2 Circuits (Fig.2) 4 Circuits (Fig.3) 1 Circuit (Fig.4) 2 Circuits (Fig.5) Load Factor (%) Indoor Fig.6 Outdoor Fig / / / kV Ampacities 5 35kV Aluminum s (Triplexed or Paralleled) (AWG/ ) Underground in Ducts Three 1/C s Per Duct Direct Three 1/C s per Circuit 1 Circuit (Fig.7) 2 Circuits (Fig.8) 4 Circuits (Fig.9) 1 Circuit (Fig.10) 2 Circuits (Fig.11) Load Factor (%) Indoor Fig / / / kV s (Triplexed or Paralleled) (AWG/ ) Underground in Ducts Three 1/C s Per Duct Direct Three 1/C s per Circuit 1 Circuit (Fig.7) 2 Circuits (Fig.8) 4 Circuits (Fig.9) 1 Circuit (Fig.10) 2 Circuits (Fig.11) Load Factor (%) Indoor Fig / / / Outdoor Fig.12 Outdoor Fig See Ampacity Calculation Notes. See Ampacity Calculation Notes

20 Ampacity Calculation Notes One Single per Conduit (in Ducts) Fig. 1 Fig. 2 Fig. 3 Indoors Ambient Temp ( C) Outdoors Ambient Temp ( C) Earth Ambient Temp ( C) MV Design HV Design Rho Values ( C-cm/watt) 90 (Earth) 60 (Concrete) 600 (Duct) Assumptions Made for Ampacity Calculations Metallic Grounding Single- Point Temp ( C) 105 (MV) 90 (HV) Duct Diameter 5 Maximum Surface Temp ( C) 45 (Direct Burial) Surface Emissivity Surface Absorptivity Single, 100% Level, 5 mil Tape, PVC Atmospheric Pressure (atm) Air Speed (ft/sec) Single, 100% Level, 15 #12 AWG Wire, PE Three Single s (Direct Burial) Fig. 4 Fig. 5 Single Installations in Air Fig. 6 Derating Factors for s in Air, Separated by 1 /4 to 1 Diameters No. s Vertically No. s Horizontally Derating Factors for s in Air, One Layer Spaced s in a Horizontal Line Three Single s Paralleled/Triplexed per Conduit (in Ducts) Fig. 7 Fig. 8 Fig. 9 Separation Surfaces Derating Factors S Ka 0" " " " " " " Three Single s Paralleled/Triplexed (Direct Burial) Fig. 10 Fig. 11 Three Installations in Air Fig. 12 Derating Factors for s in Conduits in Air, Separated by 1 /4 to 1 Conduit Diameters No. Conduits Vertically No. Conduits Horizontally If the conduits or cables are spaced 10" vertically and horizontally, no correction need be applied in any case

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High Voltage Aluminum, Smooth Aluminum Shield/Sheath

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